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b5f3534268
1458667 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Sun Jian
|
b5f3534268 |
bpf: Fix partial copy of non-linear test_run output
For non-linear test_run output, bpf_test_finish() derives the linear
data copy length from copy_size - frag_size. This only matches the
linear data length when copy_size is the full packet size.
When userspace provides a short data_out buffer, copy_size is clamped to
that buffer size. If copy_size is smaller than frag_size, the computed
length becomes negative and bpf_test_finish() returns -ENOSPC before
copying the packet prefix or updating data_size_out.
Compute the linear data length from the packet layout instead, and clamp
the linear copy length to copy_size. This preserves the expected
partial-copy semantics: return -ENOSPC, copy the packet prefix that fits
in data_out, and report the full packet length through data_size_out.
Fixes:
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Alexei Starovoitov
|
3eb21c8691 |
Merge branch 'bpf-fix-stack-slot-index-for-spectre-v4-nospec-checks'
Nuoqi Gui says: ==================== bpf: Fix stack slot index for Spectre v4 nospec checks check_stack_write_fixed_off() uses one byte-indexing scheme when checking whether a fixed-offset stack write needs Spectre v4 sanitization, and another scheme when recording the write into slot_type[]. For sub-8-byte writes this can make the sanitization check look at bytes that are not overwritten by the write. A zeroed lower half-slot followed by a write to the upper half-slot can therefore miss the nospec barrier for the second write. Use the same stack-byte index for the sanitization check and the slot update, and add a focused verifier selftest that expects both half-slot writes to emit nospec through the unprivileged loader lane. Bounded impact: this fixes verifier/JIT Spectre v4 mitigation emission for a fixed-offset stack-write corner case. No architectural verifier memory-safety bypass, exploit chain, CVE, embargo, or security escalation is claimed. Fixes: |
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Nuoqi Gui
|
a93ae7ed59 |
selftests/bpf: Cover stack nospec slot indexing
Add a verifier test for the fixed-offset stack write case where two 4-byte stores initialize opposite halves of the same stack slot. The test runs through the unprivileged loader lane and expects both half-slot writes to emit nospec in the translated program. Acked-by: Luis Gerhorst <luis.gerhorst@fau.de> Signed-off-by: Nuoqi Gui <gnq25@mails.tsinghua.edu.cn> Link: https://lore.kernel.org/r/20260618-f01-11-stack-nospec-slot-index-v3-2-780297041721@mails.tsinghua.edu.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Nuoqi Gui
|
d1d53aa30a |
bpf: Fix stack slot index in nospec checks
check_stack_write_fixed_off() computes the byte slot for a fixed-offset
stack write as -off - 1, and records each written byte in slot_type[] with
(slot - i) % BPF_REG_SIZE.
The Spectre v4 sanitization pre-check uses slot_type[i] instead. For a
4-byte write at fp-8 after the lower half of fp-8 has been zeroed, the
pre-check scans bytes 0..3 and sees STACK_ZERO while the actual write updates
bytes 7..4. That can leave the second half-slot write without nospec_result
even though the bytes being overwritten still require sanitization.
Use the same slot index in the sanitization pre-check that the write path uses
when updating slot_type[].
Fixes:
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Linus Torvalds
|
ef0c9f75a1 |
lib: Add stale 'raid6' directory to .gitignore file
I keep having to do this, because people think they can just move
directories around and move the gitignore files around with them.
You really can't do that - the old generated files stay around for
others, and still need to be ignored in the old location.
So when moving gitignore entries around because you moved the files (or
when moving a whole gitignore file around because the directory it was
in moved), the old gitignore situation needs to be dealt with.
Yes, those files may have moved in *your* tree when you moved the
directory. And yes, new repositories will never even have seen them.
But all those other developers that see the result of your move still
likely have a working tree with the old state, and the files that were
hidden from git by an old gitignore file do not suddenly become
relevant.
Fixes:
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Linus Torvalds
|
2e05544060 |
mm.git review status for mm-hotfixes-stable..mm-nonmm-stable
Everything:
Total patches: 108
Reviews/patch: 0.84
Reviewed rate: 75%
Patch series in this merge:
- The 2 patch series "taskstats: fix TGID dead-thread stat retention"
from Yiyang Chen fixes a taskstats TGID aggregation bug where fields
added in the TGID query path were not preserved after thread exit, and
adds a kselftest covering the regression.
- The 2 patch series "lib/tests: string_helpers: Slight improvements"
from Andy Shevchenko improves lib/tests/string_helpers_kunit.c a little.
- The 2 patch series "lib/base64: decode fixes" from Josh Law addreesses
minor issues in lib/base64.c.
- The 3 patch series "selftests/filelock: Make output more kselftestish"
from Mark Brown makes the output from the ofdlocks test a bit easier for
tooling to work with, and also ignores the generated file.
- The 3 patch series "uaccess: unify inline vs outline
copy_{from,to}_user() selection" from Yury Norov simplifies the usercopy
code by removing the selectability of inlining copy_{from,to}_user().
- The 5 patch series "ocfs2: validate inline xattr header consumers"
from ZhengYuan Huang fixes a number of possible issues in the ocfs2
xattr code.
- The 8 patch series "lib and lib/cmdline enhancements" from Dmitry
Antipov provides additional robustness checking in the cmdline handling
code and its in-kernel testing and selftests.
- The 18 patch series "cleanup the RAID6 P/Q library" from Christoph
Hellwig cleans up the RAID6 P/Q library to match the recent updates to
the RAID 5 XOR library and other CRC/crypto libraries.
- The 3 patch series "ocfs2: harden inode validators against forged
metadata" from Michael Bommarito adds three structural checks to OCFS2
dinode validation so malformed on-disk fields are rejected before
ocfs2_populate_inode() copies them into the in-core inode.
- The 2 patch series "lib/raid: replace __get_free_pages() call with
kmalloc()" from Mike Rapoport cleans up the lib/raid code by using
kmalloc() in more places.
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Merge tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)
Fix a taskstats TGID aggregation bug where fields added in the TGID
query path were not preserved after thread exit, and adds a kselftest
covering the regression.
- "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)
Improve lib/tests/string_helpers_kunit.c a little
- "lib/base64: decode fixes" (Josh Law)
Address minor issues in lib/base64.c
- "selftests/filelock: Make output more kselftestish" (Mark Brown)
Make the output from the ofdlocks test a bit easier for tooling to
work with. Also ignore the generated file
- "uaccess: unify inline vs outline copy_{from,to}_user() selection"
(Yury Norov)
Simplify the usercopy code by removing the selectability of inlining
copy_{from,to}_user().
- "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)
Fix a number of possible issues in the ocfs2 xattr code
- "lib and lib/cmdline enhancements" (Dmitry Antipov)
Provide additional robustness checking in the cmdline handling code
and its in-kernel testing and selftests
- "cleanup the RAID6 P/Q library" (Christoph Hellwig)
Clean up the RAID6 P/Q library to match the recent updates to the
RAID 5 XOR library and other CRC/crypto libraries
- "ocfs2: harden inode validators against forged metadata" (Michael
Bommarito)
Add three structural checks to OCFS2 dinode validation so malformed
on-disk fields are rejected before ocfs2_populate_inode() copies them
into the in-core inode
- "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
Rapoport)
Clean up the lib/raid code by using kmalloc() in more places
* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
lib: interval_tree_test: validate benchmark parameters
ocfs2: avoid moving extents to occupied clusters
treewide: fix transposed "sign" typos and update spelling.txt
ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
fat: reject BPB volumes whose data area starts beyond total sectors
selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
lib/test_firmware: allocate the configured into_buf size
fs: efs: remove unneeded debug prints
checkpatch: cuppress warnings when Reported-by: is followed by Link:
MAINTAINERS: add Alexander as a kcov reviewer
mailmap: update Alexander Sverdlin's Email addresses
fs: fat: inode: replace sprintf() with scnprintf()
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
ocfs2/dlm: require a ref for locking_state debugfs open
ocfs2: reject FITRIM ranges shorter than a cluster
ocfs2: validate fast symlink target during inode read
ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
...
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Linus Torvalds
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09e3b4a76b |
NAND changes:
- Extend SPI NAND continuous read to Winbond devices, which requires
numerous changes in the spi-{mem,nand} layers such as the need for a
secondary read operation template.
- Continuous reads in general have also been enhanced/fixed for avoiding
potential issues at probe time and at block boundaries.
SPI NOR changes:
- Big set of cleanups and improvements to the locking support. This
series contains some cleanups and bug fixes for code and documentation
around write protection. Then support is added for complement locking,
which allows finer grained configuration of what is considered locked
and unlocked. Then complement locking is enabled on a bunch of Winbond
W25 flashes.
- Fix die erase support on Spansion flashes. Die erase is only supported
on multi-die flashes, but the die erase opcode was set for all. When
the opcode is set, it overrides the default chip erase opcode which
should be used for single-die flashes. Only set the opcode on
multi-die flashes. Also, the opcode was not set on multi-die s28hx-t
flashes. Set it so they can use die-erase correctly.
General changes:
- A few drivers and mappings have been removed following SoCs support
removal.
- And again, there is the usual load of misc improvements and fixes.
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Merge tag 'mtd/for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"NAND changes:
- Extend SPI NAND continuous read to Winbond devices, which requires
numerous changes in the spi-{mem,nand} layers such as the need for
a secondary read operation template
- Continuous reads in general have also been enhanced/fixed for
avoiding potential issues at probe time and at block boundaries
SPI NOR changes:
- Big set of cleanups and improvements to the locking support.
This series contains some cleanups and bug fixes for code and
documentation around write protection. Then support is added for
complement locking, which allows finer grained configuration of
what is considered locked and unlocked. Then complement locking is
enabled on a bunch of Winbond W25 flashes
- Fix die erase support on Spansion flashes.
Die erase is only supported on multi-die flashes, but the die erase
opcode was set for all. When the opcode is set, it overrides the
default chip erase opcode which should be used for single-die
flashes. Only set the opcode on multi-die flashes. Also, the opcode
was not set on multi-die s28hx-t flashes. Set it so they can use
die-erase correctly
General changes:
- A few drivers and mappings have been removed following SoCs support
removal
- And again, there is the usual load of misc improvements and fixes"
* tag 'mtd/for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (63 commits)
mtd: cfi: Use common error handling code in two functions
mtd: slram: simplify register_device() cleanup
mtd: slram: remove failed entries from the device list
mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST
mtd: spi-nor: spansion: add die erase support in s28hx-t
mtd: spi-nor: spansion: use die erase for multi-die devices only
mtd: spi-nor: winbond: Add W25Q02NWxxIM CMP locking support
mtd: spi-nor: winbond: Add W25Q01NWxxIM CMP locking support
mtd: spi-nor: winbond: Add W25Q01NWxxIQ CMP locking support
mtd: spi-nor: winbond: Add W25H02NWxxAM CMP locking support
mtd: spi-nor: winbond: Add W25H01NWxxAM CMP locking support
mtd: spi-nor: winbond: Add W25H512NWxxAM CMP locking support
mtd: spi-nor: Add steps for testing locking with CMP
mtd: spi-nor: swp: Add support for the complement feature
mtd: spi-nor: Add steps for testing locking support
mtd: maps: remove obsolete impa7 map driver
mtd: maps: remove uclinux map driver
mtd: maps: remove AMD Élan specific drivers
mtd: inftlmount: convert printk(KERN_WARNING) to pr_warn
mtd: Consistently define pci_device_ids
...
|
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Linus Torvalds
|
8cd8cf7a07 |
SCSI misc on 20260621
Only ufs driver updates this time, apart from which this is just an assortment of bug fixes and AI assisted changes. The biggest other change is the reversion of the sas_user_scan patch which supported a mpi3mr NVME behaviour but caused major issues for other sas controllers. The next biggest is the removal of target reset in tcm_loop.c. Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- iLgEABMIAGAWIQTnYEDbdso9F2cI+arnQslM7pishQUCajfkNxsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDImHGphbWVzLmJvdHRvbWxleUBoYW5zZW5wYXJ0bmVy c2hpcC5jb20ACgkQ50LJTO6YrIUNpAD+LZEfeMQpNZrEd4Ug/1IGHjnDvEnGp3Wx lDfSEVqLqfABAIKqL0npb+kjgdkGT3IuugIboX27/XDBcCb6mPQdXIst =6T7N -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "Only ufs driver updates this time, apart from which this is just an assortment of bug fixes and AI assisted changes. The biggest other change is the reversion of the sas_user_scan patch which supported a mpi3mr NVME behaviour but caused major issues for other sas controllers. The next biggest is the removal of target reset in tcm_loop.c" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (56 commits) scsi: target: Remove tcm_loop target reset handling scsi: lpfc: Fix spelling mistakes in comments scsi: ufs: ufs-pci: Add AMD device ID support scsi: ufs: core: Handle PM commands timeout before SCSI EH scsi: devinfo: Broaden Promise VTrak E310/E610 identification scsi: target: Use constant-time crypto_memneq() for CHAP digests scsi: target: Fix hexadecimal CHAP_I handling scsi: scsi_debug: Fix one-partition tape setup bounds scsi: ufs: qcom: dt-bindings: Document the Hawi UFS controller scsi: mailmap: Update Avri Altman's email address scsi: ufs: Remove redundant vops NULL check and trivial wrapper scsi: ufs: Remove unnecessary return in void vops wrappers scsi: ufs: Fix wrong value printed in unexpected UPIU response case scsi: ufs: core: Fix NULL pointer dereference in scsi_cmd_priv() calls scsi: megaraid_mbox: Avoid double kfree() scsi: pm8001: Fix error code in non_fatal_log_show() scsi: lpfc: Turn lpfc_queue q_pgs into a flexible array scsi: ufs: core: Skip link param validation when lanes_per_direction is unset scsi: sas: Skip opt_sectors when DMA reports no real optimization hint scsi: Revert "scsi: Fix sas_user_scan() to handle wildcard and multi-channel scans" ... |
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Linus Torvalds
|
1bc1885835 |
Asides of the avalanche of LLM-driven fixes, there are a couple of
big changes this cycle: - negative dentry and symlink cache - a way out of the unkillable "io_wait_event_killable" (because it looped around waiting for the request flush to come back from server; this has been bugging syzcaller folks since forever): I'm still not 100% sure about this patch, but I think it's as good as we'll ever get, and will keep testing a bit further in the coming weeks The rest is more noisy than usual, but shouldn't cause any trouble. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE/IPbcYBuWt0zoYhOq06b7GqY5nAFAmo34aAACgkQq06b7GqY 5nDn4g/9GuPXA8CLoHaRGToNvQhgTVjqKlqHA94kicLX3EFd9xgapu22kPUHa1Li 94bceMtyvCcCNkdzPVcQUEIUo4O7PC20u6ljxulSqU1UxwwhWsIiLMwoZi8gJFcq LLAoa4v/cY3pGYru1SHoVo31rh0AWN+y4V6Xc7uQvHIFANlMEcMLkGvlM8RJXVk2 3pMWj4jIIksQ1JlRc/NM2Eysvj5Wr6QksULvRNPCRj0jTvHBxuFPWz6WEIz26W21 h8y9n1bZttwoECL/I8vPzKu4atEXgDUTj/fRhfR0EfxwU/fRFUrbbfGYWOEBoLrs BHtDNy2X7vfg6TCqyxWByxDODgz2NPcV81JyPoexDCyAVfObwf+xzHOUgHeZaewa VYFV59fNWKRw0knzHZWdgNs9NUdCiaCO8qagVI2gWqjP2guCfCASfTwYMAqOL5LI ESEyzIoRYYcCw0BbIYiUw+cf4mHzA4tyxy/ST7ZpvHhE3yuEk3gzGiX0Yr/0pJqF VyRa2qzJsImCWaiS2Ex3VVimzaN1x7bAganFqzcxklK5qvdfT9nDI1hjjFPKsqeD zmDBfOCySN1KmTFopL2+tkLwLRXby/TRGPXZU8tDcqWWzT71I2sm01u8J3YS5LC0 z8CaPKToZl6DfQ+rWkdQe8NDFdsPvmc8SICnyQsv6jFl8nkCPUo= =sgkZ -----END PGP SIGNATURE----- Merge tag '9p-for-7.2-rc1' of https://github.com/martinetd/linux Pull 9p updates from Dominique Martinet: "Asides of the avalanche of LLM-driven fixes, there are a couple of big changes this cycle: - negative dentry and symlink cache - a way out of the unkillable "io_wait_event_killable" (because it looped around waiting for the request flush to come back from server; this has been bugging syzcaller folks since forever): I'm still not 100% sure about this patch, but I think it's as good as we'll ever get, and will keep testing a bit further in the coming weeks The rest is more noisy than usual, but shouldn't cause any trouble" * tag '9p-for-7.2-rc1' of https://github.com/martinetd/linux: 9p: Add missing read barrier in virtio zero-copy path net/9p: Replace strlen() strcpy() pair with strscpy() 9p: skip nlink update in cacheless mode to fix WARN_ON net/9p: fix race condition on rdma->state in trans_rdma.c 9p: v9fs_file_do_lock: replace WARN_ONCE with p9_debug 9p: Enable symlink caching in page cache 9p: Set default negative dentry retention time for cache=loose 9p: Add mount option for negative dentry cache retention 9p: Cache negative dentries for lookup performance 9p: avoid returning ERR_PTR(0) from mkdir operations 9p: avoid putting oldfid in p9_client_walk() error path net/9p: fix infinite loop in p9_client_rpc on fatal signal docs/filesystems/9p: fix broken external links 9p: invalidate readdir buffer on seek 9p: use kvzalloc for readdir buffer net/9p/usbg: Constify struct configfs_item_operations |
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Linus Torvalds
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aff3ca32f3 |
firewire updates for v7.2
This update includes the following changes. Unit drivers have been able to assign an arbitrary value in the mod_device entry, which is typed as kernel_ulong_t. While storing the pointer value is legitimate, conversion back to a pointer has been performed without preserving const qualifier. Uwe Kleine-König introduced an union to provide safer and more robust conversions, as part of the ongoing CHERI enhancement work for ARM and RISC-V architectures. This update includes changes in the sound subsystem, since the conversion pattern is widely used in ALSA firewire stack. The userspace applications can request the core function to perform isochronous resource management procedures. Dingsoul reported reference-count leak when these procedures are processed in workqueue contexts. This update refactors the relevant code paths following a divide and conquer approach. Consequently, it became clear that the issue still remain only in the path when userspace applications delegate automatic resource reallocation after bus resets to the core. In practice, the leak is rarely triggered, and a complete fix is still in progress. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQE66IEYNDXNBPeGKSsLtaWM8LwEwUCajZH8gAKCRCsLtaWM8Lw E5zDAP4gyY1cTSdvIeKay8yYRLqZXtBQTzMeqfSsptLBQgemCAEAwAFP+KKghjU7 sDhDPgBD4bTDvYtjyh/RFb0lkTGV7wA= =3J0T -----END PGP SIGNATURE----- Merge tag 'firewire-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire updates from Takashi Sakamoto: - firewire drivers have been able to assign an arbitrary value in the mod_device entry, which is typed as kernel_ulong_t. While storing the pointer value is legitimate, conversion back to a pointer has been performed without preserving the const qualifier. Uwe Kleine-König introduced an union to provide safer and more robust conversions, as part of the ongoing CHERI enhancement work for ARM and RISC-V architectures. This includes changes to the sound subsystem, since the conversion pattern is widely used in ALSA firewire stack. - Userspace applications can request the core function to perform isochronous resource management procedures. Dingsoul reported a reference-count leak when these procedures are processed in workqueue contexts. This refactors the relevant code paths following a divide and conquer approach. Consequently, it became clear that the issue still remain in the path when userspace applications delegate automatic resource reallocation after bus resets to the core. In practice, the leak is rarely triggered, and a complete fix is still in progress. * tag 'firewire-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: core: Open-code topology list walk firewire: core: cancel using delayed work for iso_resource_once management firewire: core: rename member name for channel mask of isoc resource firewire: core: minor code refactoring for case-dependent parameters of iso resources management ALSA: firewire: Make use of ieee1394's .driver_data_ptr firewire: Simplify storing pointers in device id struct firewire: core: move allocation/reallocation paths into specific branch after isoc resource management in cdev firewire: core: refactor notification type determination after isoc resource management in cdev firewire: core: use switch statement for post-processing of isoc resource management in cdev firewire: core: reduce critical section duration in pre-processing of isoc resource management in cdev firewire: core: code cleanup for iso resource auto creation firewire: core: append _auto suffix for non-once iso resource operations firewire: core: code cleanup to remove old implementations for once operation firewire: core: split functions for iso_resource once operation firewire: core: code refactoring for helper function to fill iso_resource parameters firewire: core: code refactoring to queue work item for iso_resource firewire: core: code refactoring for early return at client resource allocation |
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Linus Torvalds
|
d639d9fa16 |
liveupdate: updates for 7.2-rc1
- kho: make memory preservation compatible with deferred initialization of
the memory map
- luo: add LIVEUPDATE_SESSION_GET_NAME ioctl and parameter verification for
LIVEUPDATE_IOCTL_CREATE_SESSION ioctl
- luo: documentation updates for liveupdate=on command line option, systemd
support and the current compatibility status
- luo: remove the fixed limits on the number of files that can be preserved
within a single session, and the total number of sessions managed by the
Live Update Orchestrator
- fixes that didn't cut as urgent and were delayed until the merge window:
* reference count incoming File-Lifecycle-Bound (FLB) data so it cannot
be freed while a subsystem is still using it
* fixes for a TOCTOU race in luo_session_retrieve(), a use-after-free in
the file finish and unpreserve paths, concurrent session mutations
during reboot and serialization on preserve_context kexec
* make sure ioctls for incoming LUO sessions are blocked for outgoing
sessions and vice versa
* make sure KHO scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES
* fix memblock tests build issue introduced by KHO changes
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Merge tag 'liveupdate-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull liveupdate updates from Mike Rapoport:
"Kexec Handover (KHO):
- make memory preservation compatible with deferred initialization
of the memory map
Live Update Orchestrator (LUO):
- add LIVEUPDATE_SESSION_GET_NAME ioctl and parameter verification
for LIVEUPDATE_IOCTL_CREATE_SESSION ioctl
- documentation updates for liveupdate=on command line option,
systemd support and the current compatibility status
- remove the fixed limits on the number of files that can be
preserved within a single session, and the total number of
sessions managed by the LUO
Misc fixes:
- reference count incoming File-Lifecycle-Bound (FLB) data so
it cannot be freed while a subsystem is still using it
- fixes for a TOCTOU race in luo_session_retrieve(), a use-
after-free in the file finish and unpreserve paths, concurrent
session mutations during reboot and serialization on
preserve_context kexec
- make sure ioctls for incoming LUO sessions are blocked for
outgoing sessions and vice versa
- make sure KHO scratch size is always aligned by
CMA_MIN_ALIGNMENT_BYTES
- fix memblock tests build issue introduced by KHO changes"
* tag 'liveupdate-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux: (36 commits)
liveupdate: Document that retrieve failure is permanent
docs: memfd_preservation: fix rendering of ABI documentation
selftests/liveupdate: Add stress-files kexec test
selftests/liveupdate: Add stress-sessions kexec test
selftests/liveupdate: Test session and file limit removal
liveupdate: Remove limit on the number of files per session
liveupdate: Remove limit on the number of sessions
liveupdate: defer session block allocation and physical address setting
kho: add support for linked-block serialization
liveupdate: Extract luo_session_deserialize_one helper
liveupdate: Extract luo_file_deserialize_one helper
liveupdate: register luo_ser as KHO subtree
liveupdate: centralize state management into struct luo_ser
liveupdate: avoid mixing cleanup guards with goto in luo_session_retrieve_fd
liveupdate: change file_set->count type to u64 for type safety
liveupdate: Remove unused ser field from struct luo_session
liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish()
liveupdate: block session mutations during reboot
liveupdate: fix TOCTOU race in luo_session_retrieve()
liveupdate: skip serialization for context-preserving kexec
...
|
||
|
Linus Torvalds
|
1e762b53a8 |
OpenRISC updates for 7.2
A few fixes for text patching related code:
* Update the section of map_page used in text patching. It was
left with __init when text patching was introduced to OpenRISC.
* Add fix to invalidate remote SMP core i-caches after text is patched.
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Merge tag 'for-linus' of https://github.com/openrisc/linux
Pull OpenRISC updates from Stafford Horne:
"A few fixes for text patching related code:
- Update the section of map_page used in text patching. It was
left with __init when text patching was introduced to OpenRISC
- Add fix to invalidate remote SMP core i-caches after text is
patched"
* tag 'for-linus' of https://github.com/openrisc/linux:
openrisc: Fix jump_label smp syncing
openrisc: Add full instruction cache invalidate functions
openrisc: Cache invalidation cleanup
openrisc: mm: Fix section mismatch between map_page and __set_fixmap
|
||
|
Miquel Raynal
|
49420dfded |
* Extend SPI NAND continuous read to Winbond devices, which requires
numerous changes in the spi-{mem,nand} layers such as the need for a
secondary read operation template.
* Continuous reads in general have also been enhanced/fixed for avoiding
potential issues at probe time and at block boundaries.
Plus, there is the usual load of misc fixes and improvements.
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Merge tag 'nand/for-7.2' into mtd/next
* Extend SPI NAND continuous read to Winbond devices, which requires
numerous changes in the spi-{mem,nand} layers such as the need for a
secondary read operation template.
* Continuous reads in general have also been enhanced/fixed for avoiding
potential issues at probe time and at block boundaries.
Plus, there is the usual load of misc fixes and improvements.
|
||
|
Miquel Raynal
|
c10f641fcb |
SPI NOR changes for 7.2
Notable changes: - Big set of cleanups and improvements to the locking support. This series contains some cleanups and bug fixes for code and documentation around write protection. Then support is added for complement locking, which allows finer grained configuration of what is considered locked and unlocked. Then complement locking is enabled on a bunch of Winbond W25 flashes. - Fix die erase support on Spansion flashes. Die erase is only supported on multi-die flashes, but the die erase opcode was set for all. When the opcode is set, it overrides the default chip erase opcode which should be used for single-die flashes. Only set the opcode on multi-die flashes. Also, the opcode was not set on multi-die s28hx-t flashes. Set it so they can use die-erase correctly. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQQTlUWNzXGEo3bFmyIR4drqP028CQUCajKB6hQccHJhdHl1c2hA a2VybmVsLm9yZwAKCRAR4drqP028Ca/wAQCL6gEVL6OXpBrHRxmwt5l8/m7h9ZML fYf15pwRE2fg5gD+NSavIqhuSp9yAF1PhNTAirE0iKDTo7t12Z9HM8LYGQ4= =w7Eg -----END PGP SIGNATURE----- Merge tag 'spi-nor/for-7.2' into mtd/next SPI NOR changes for 7.2 Notable changes: - Big set of cleanups and improvements to the locking support. This series contains some cleanups and bug fixes for code and documentation around write protection. Then support is added for complement locking, which allows finer grained configuration of what is considered locked and unlocked. Then complement locking is enabled on a bunch of Winbond W25 flashes. - Fix die erase support on Spansion flashes. Die erase is only supported on multi-die flashes, but the die erase opcode was set for all. When the opcode is set, it overrides the default chip erase opcode which should be used for single-die flashes. Only set the opcode on multi-die flashes. Also, the opcode was not set on multi-die s28hx-t flashes. Set it so they can use die-erase correctly. |
||
|
Linus Torvalds
|
322008f87f |
hwspinlock updates for v7.2
Avoid uninitialized struct members in the Qualcomm hwspinlock driver. -----BEGIN PGP SIGNATURE----- iQJCBAABCgAsFiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAmo2pkEOHGJqb3JuQGty eW8uc2UACgkQCx85Pw2ZrcVY1Q//ULNhvQ+9BOs0QvWsZI6pHUkXohaF5dRdSXOK EWmJVHMZo/lGHN6bwB+wz88jHMbIWZYUSbPLbvigVlCm4xgbKFHbyUp3eym4+GOo nvaRz98sqAb/xK3bLgMoAb1wK4oPa+5Ahb6732R2wTcSar3x+LgM2yOOVboYLKrV zfsIlTxC+4vK2cj420rrTO+6okz1kW46korNecnFdjoK4odrWjic4B9SE+L3hgEN GzlvZelRmyXOUuroyzhhcOTo4CkkFuRQYhALw0QocDkEdlU1Nm1+gWAcl5KtgxEa QoCkRPen3xPBlpeH8VBm1k3rZcprt2QxzEzKgDJiCCS2XT64GdktrMj2J6expLfr CZNLTbcLUwOzmBaPt7Bbe0ROcG14WXJBJ4UzHxUa6tQvCErLnHPzZ3M2MbSEnZ1u Qw2edOTeZXuAChxIudd26+uNjDyofj/+8Tfux0hyEYt9MqSPapZx6pbtpLz/UN/o BLFHaV6VVTwtxeqRMi/iTvHN9vSadNbYekzVBpNIRWyDt1lPZ6RNJAEIrfTCxJFd GkEicrTSEESSsgxp3VlOK1KPkKJ4tgGux+JILuI/7u/iefRQ3ZEsAd9ud5RiX72r lc3Ho7aHRCyqDyO4t7Lt+5+4jUMBMXZdKTm0ujXh9VmGJ3zhGOM0VwFfikd6zKoN MmyGLmc= =bLgG -----END PGP SIGNATURE----- Merge tag 'hwlock-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull hwspinlock update from Bjorn Andersson: - Avoid uninitialized struct members in the Qualcomm hwspinlock driver * tag 'hwlock-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: hwspinlock: qcom: avoid uninitialized struct members |
||
|
Linus Torvalds
|
c7f112e12d |
rpmsg update for v7.2
Fix use-after-free in rpmsg-char driver. -----BEGIN PGP SIGNATURE----- iQJCBAABCgAsFiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAmo2pc0OHGJqb3JuQGty eW8uc2UACgkQCx85Pw2ZrcVsQBAArnG1O+UQjt8CViyIknMdrTEplFcYQvSMwyDu jQVcz9Y0exom1+CgZPe9zTuR/wEl7t8O9wxjJm+5w1XeiCXl/CElwaZ5FEZxE5NF xi7jGbvJDVMgxHBTZ4x4hJE+MgxkwKpLn7dKZuXGUi0AkvPsWVusQPrmbPryT8VB 9Qx5FaZMz2wTy92Kx3X9S5/4eixG4zX7cVGAJVlGHxFhxWI3M0S5XxoVClI0aSc7 luhe8bYiA9AtXzEVRI3k2eEeOC/MtSAoZXcU3eef8BhH9YENNv1s4dLHEasN7nuP 9WozrEn2zDrzi38G6RNra+UIxl1lzuNyQaTJGxpKypo71zmJbUgbySmrtwt9akAC ZyXVSKOCp8eZqu1PXFBacsiIDJJEHt2dcgEHXkw0XMl/JSQwEfO5v/ohvnyl9UX4 VpCPjevKae00LUEFA8IhTgfP0zKLqAlFR/aiZrF2s8eJuxv7Y50SWi5ArVj/6ioe B7yDxQNuH/6VM4K29E7vh/81oQETF4x87QNBr1WC26pAMNlPOYrLJ0rvu6fkER+H OXDlA5GpwqrnJJy4fBMISrU3hdqADkttgdW1knRmY9jMP78pwH9eGfpra+p54IzF 28n/ujn+RbksV0cXK/JX7p84Lk9Ik/ZzTkwq2vfSUjZJKI66ASLplZCfqWm+fvyp 6KPym/c= =2sdb -----END PGP SIGNATURE----- Merge tag 'rpmsg-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull rpmsg update from Bjorn Andersson: - Fix use-after-free in rpmsg-char driver * tag 'rpmsg-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: rpmsg: char: Fix use-after-free on probe error path |
||
|
Linus Torvalds
|
9d0d4d12e4 |
remoteproc updates for v7.2
Add i.MX94 support to the i.MX remoteproc driver, covering the Cortex-M7 and Cortex-M33 Sync cores. This also fixes programming of non-zero System Manager CPU/LMM reset vectors. Move the remoteproc resource table definitions to a separate header, so they can be used by clients that do not otherwise depend on remoteproc. Switch the firmware resource handling over to the common iterator. Update the Xilinx R5F remoteproc driver to check the remote core state before attaching, drop a binding header dependency, and add firmware-name based auto boot support. Add Qualcomm Hawi ADSP/CDSP bindings, together with Shikra RPM bindings and CDSP, LPAICP, and MPSS PAS support. Fix a Qualcomm minidump leak, clean up PAS and WCSS reset handling, and make the user-visible Qualcomm naming consistent. Remove a duplicate STM32_RPROC Kconfig dependency and make i.MX remoteproc instances use the device node name so multiple processors can be distinguished in sysfs. -----BEGIN PGP SIGNATURE----- iQJCBAABCgAsFiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAmo2pWgOHGJqb3JuQGty eW8uc2UACgkQCx85Pw2ZrcUxqA//XXAZHUD0Hz7Qag+z38N5qSCk/U/Qg38lvRWB lNDZ2g7KqmwdJbzJr5wzG8hoTO84hs3/nRAzV+KnwOIJ5M4EyH0AF9aqXjaqvyC7 V10OYSt5eQQZPBCZ87D7lABVxeuXtc07ETcecx3/zLZSdPqHUa25E1V86EwqYNl1 50wXTjbzhqdCOxKHxxhBhLq1GdPZE4shfzkTATfhAOTInRHwsfUS2u08Wh31kcuX eGG3vAIWQKbLGtM+ZLy/GCNhT58pBtHixnMjCJOmv2c8HzPoQmkSZbf+/8L6fOYY 48XbRJG1PdlraWVpEXzjJBLO+jULJmAtqlptMXX30V/qAnxoLWyU22Vw86hcj5XU Cxb/O1YconxtAbzQvCcB94oSpGM5DXXyHiUk+Cwizv3q+SHaMIdTA51Atpf/ly5k /di1FqOKzVHYbFDYYxttXmXrpUVIRfFDMkONoZgLZiE1cRZXrbwHrqZFaBz7lvw/ m/tu1+VX3jGaVJpyA5uAflxVW29r+VCNZ2RLKDC0vLnnRAut5oMbWUtLJlXhD9Ad wvgMkNMXPCsSyuUQ3gBLqHP8TdBMQav5dNGy0LcLuRDLN82I+h/GfxFOqowArKdh iVNnogPUJhscsSdnyspqBMDZ+fexYw6jIknt3ALet+6MWJ2gxt7k4j8y3CoRL6GB 5okVSqM= =6cLo -----END PGP SIGNATURE----- Merge tag 'rproc-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull remoteproc updates from Bjorn Andersson: - Add i.MX94 support to the i.MX remoteproc driver, covering the Cortex-M7 and Cortex-M33 Sync cores. This also fixes programming of non-zero System Manager CPU/LMM reset vectors. - Move the remoteproc resource table definitions to a separate header, so they can be used by clients that do not otherwise depend on remoteproc. Switch the firmware resource handling over to the common iterator. - Update the Xilinx R5F remoteproc driver to check the remote core state before attaching, drop a binding header dependency, and add firmware-name based auto boot support. - Add Qualcomm Hawi ADSP/CDSP bindings, together with Shikra RPM bindings and CDSP, LPAICP, and MPSS PAS support. Fix a Qualcomm minidump leak, clean up PAS and WCSS reset handling, and make the user-visible Qualcomm naming consistent. - Remove a duplicate STM32_RPROC Kconfig dependency and make i.MX remoteproc instances use the device node name so multiple processors can be distinguished in sysfs. * tag 'rproc-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: remoteproc: qcom: pas: Drop start/stop completion from struct qcom_pas remoteproc: qcom: pas: Add Shikra remoteproc support dt-bindings: remoteproc: qcom,shikra-pas: Document Shikra PAS remoteprocs dt-bindings: remoteproc: Add Shikra RPM processor compatible remoteproc: qcom: Unify user-visible "Qualcomm" name remoteproc: qcom: Fix leak when custom dump_segments addition fails remoteproc: qcom_q6v5_wcss: drop redundant wcss_q6_bcr_reset dt-bindings: remoteproc: qcom,sm8550-pas: Add Hawi CDSP compatible dt-bindings: remoteproc: qcom,sm8550-pas: Add Hawi ADSP compatible remoteproc: xlnx: Enable auto boot feature dt-bindings: remoteproc: xlnx: Add firmware-name property remoteproc: xlnx: Remove binding header dependency remoteproc: imx_rproc: Use device node name as processor name remoteproc: use rsc_table_for_each_entry() in rproc_handle_resources() remoteproc: Move resource table data structure to its own header remoteproc: xlnx: Check remote core state remoteproc: imx_rproc: Add support for i.MX94 remoteproc: imx_rproc: Program non-zero SM CPU/LMM reset vector dt-bindings: remoteproc: imx-rproc: Support i.MX94 remoteproc: Dead code cleanup in Kconfig for STM32_RPROC |
||
|
Gui-Dong Han
|
aa88278693 |
9p: Add missing read barrier in virtio zero-copy path
Commit |
||
|
David Laight
|
cc8b15a2c4 |
net/9p: Replace strlen() strcpy() pair with strscpy()
Use the result of strscpy() for the overflow check. Signed-off-by: David Laight <david.laight.linux@gmail.com> Message-ID: <20260606202744.5113-3-david.laight.linux@gmail.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
||
|
Breno Leitao
|
574aa0b479 |
9p: skip nlink update in cacheless mode to fix WARN_ON
v9fs_dec_count() unconditionally calls drop_nlink() on regular files,
even when the inode's nlink is already zero. In cacheless mode the
client refetches inode metadata from the server (the source of truth)
on every operation, so by the time v9fs_remove() returns, the locally
cached nlink may already reflect the post-unlink value:
1. Client initiates unlink, server processes it and sets nlink to 0
2. Client refetches inode metadata (nlink=0) before unlink returns
3. Client's v9fs_remove() completes successfully
4. Client calls v9fs_dec_count() which calls drop_nlink() on nlink=0
This race is easily triggered under heavy unlink workloads, such as
stress-ng's unlink stressor, producing the following warning:
WARNING: fs/inode.c:417 at drop_nlink+0x4c/0xc8
Call trace:
drop_nlink+0x4c/0xc8
v9fs_remove+0x1e0/0x250 [9p]
v9fs_vfs_unlink+0x20/0x38 [9p]
vfs_unlink+0x13c/0x258
...
In cacheless mode the server is authoritative and the inode is on its
way out, so locally adjusting nlink buys nothing. Skip v9fs_dec_count()
entirely when neither CACHE_META nor CACHE_LOOSE is set, which both
avoids the warning and removes a class of nlink races (two concurrent
unlinkers observing nlink > 0 and both calling drop_nlink()) that an
nlink == 0 guard alone would only narrow rather than close.
Fixes:
|
||
|
Yizhou Zhao
|
7d54894a1e |
net/9p: fix race condition on rdma->state in trans_rdma.c
The rdma->state field is modified without holding req_lock in both
recv_done() and p9_cm_event_handler(), while rdma_request() accesses
the same field under the req_lock spinlock. This inconsistent locking
creates a race condition:
- recv_done() running in softirq completion context sets
rdma->state = P9_RDMA_FLUSHING without acquiring req_lock
- p9_cm_event_handler() modifies rdma->state at multiple points
(ADDR_RESOLVED, ROUTE_RESOLVED, ESTABLISHED, CLOSED) without
req_lock
- rdma_request() uses spin_lock_irqsave(&rdma->req_lock, flags) to
protect the read-modify-write of rdma->state
The race can cause lost state transitions: recv_done() or the CM
event handler could set state to FLUSHING/CLOSED while rdma_request()
is concurrently checking or modifying state under the lock, leading to
the FLUSHING transition being silently overwritten by CLOSING. This
corrupts the connection state machine and can cause use-after-free on
RDMA request objects during teardown.
Fix by adding req_lock protection to all rdma->state modifications in
recv_done() and p9_cm_event_handler(), matching the pattern already
used in rdma_request(). Use spin_lock_irqsave/spin_unlock_irqrestore
in the CM event handler since it can race with recv_done() which runs
in softirq context.
Tested with a kernel module that races two threads (simulating
rdma_request and recv_done/CM handler) on rdma->state with proper
locking: 5.5M+ FLUSHING writes over 27M iterations with 0 lost
transitions.
Fixes:
|
||
|
Dominique Martinet
|
96a6db3fd7 |
9p: v9fs_file_do_lock: replace WARN_ONCE with p9_debug
This warning depends on server-provided data, we should not use WARN here Reported-by: Yifei Chu <yifeichu24@gmail.com> Closes: https://lore.kernel.org/r/CAPJnbgJ7ZK7DCjCfG56hd_iKGePmAzudb4hOWd4=9r32nM+KcA@mail.gmail.com Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Message-ID: <20260529-lock-warn-v1-1-20c29580d61d@codewreck.org> |
||
|
Remi Pommarel
|
712da38d13 |
9p: Enable symlink caching in page cache
Currently, when cache=loose is enabled, file reads are cached in the page cache, but symlink reads are not. This patch allows the results of p9_client_readlink() to be stored in the page cache, eliminating the need for repeated 9P transactions on subsequent symlink accesses. This change improves performance for workloads that involve frequent symlink resolution. Signed-off-by: Remi Pommarel <repk@triplefau.lt> Message-ID: <982462d17c0c0d2856763266a25eb04d080c1dbb.1779355927.git.repk@triplefau.lt> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
||
|
Remi Pommarel
|
15bbf82857 |
9p: Set default negative dentry retention time for cache=loose
For cache=loose mounts, set the default negative dentry cache retention time to 24 hours. Signed-off-by: Remi Pommarel <repk@triplefau.lt> Message-ID: <b5beca3e70890ab8a4f0b9e99bd69cb97f5cb9eb.1779355927.git.repk@triplefau.lt> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
||
|
Remi Pommarel
|
5670a84b5c |
9p: Add mount option for negative dentry cache retention
Introduce a new mount option, negtimeout, for v9fs that allows users to specify how long negative dentries are retained in the cache. The retention time can be set in milliseconds (e.g. negtimeout=10000 for a 10secs retention time) or a negative value (e.g. negtimeout=-1) to keep negative entries until the buffer cache management removes them. For consistency reasons, this option should only be used in exclusive or read-only mount scenarios, aligning with the cache=loose usage. Signed-off-by: Remi Pommarel <repk@triplefau.lt> Message-ID: <b2d66500aa5a2f6540347c4aa46a4be10dd01bc6.1779355927.git.repk@triplefau.lt> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
||
|
Remi Pommarel
|
f00e6c1d28 |
9p: Cache negative dentries for lookup performance
Not caching negative dentries can result in poor performance for workloads that repeatedly look up non-existent paths. Each such lookup triggers a full 9P transaction with the server, adding unnecessary overhead. A typical example is source compilation, where multiple cc1 processes are spawned and repeatedly search for the same missing header files over and over again. This change enables caching of negative dentries, so that lookups for known non-existent paths do not require a full 9P transaction. The cached negative dentries are retained for a configurable duration (expressed in milliseconds), as specified by the ndentry_timeout field in struct v9fs_session_info. If set to -1, negative dentries are cached indefinitely. This optimization reduces lookup overhead and improves performance for workloads involving frequent access to non-existent paths. Signed-off-by: Remi Pommarel <repk@triplefau.lt> Message-ID: <e542317dd03bbadb5249abd3ea6aecfdca692c19.1779355927.git.repk@triplefau.lt> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
||
|
Hongling Zeng
|
314b58c01a |
9p: avoid returning ERR_PTR(0) from mkdir operations
When mkdir succeeds, v9fs_vfs_mkdir_dotl() and v9fs_vfs_mkdir() return
ERR_PTR(0) which is incorrect. They should return NULL instead for
success and ERR_PTR() only with negative error codes for failure.
Return NULL instead of passing to ERR_PTR while err is zero
Fixes smatch warnings:
fs/9p/vfs_inode_dotl.c:420 v9fs_vfs_mkdir_dotl() warn: passing zero to 'ERR_PTR'
fs/9p/vfs_inode.c:695 v9fs_vfs_mkdir() warn: passing zero to 'ERR_PTR'
The v9fs_vfs_mkdir() code was further simplified because v9fs_create()
can never return NULL, so we do not need to check for fid being set
separately, and the error path can be a simple return immediately after
v9fs_create() failure.
There is no intended functional change.
Fixes:
|
||
|
Yizhou Zhao
|
1a3860d46e |
9p: avoid putting oldfid in p9_client_walk() error path
When p9_client_walk() is called with clone set to false, fid aliases
oldfid. If the walk subsequently fails after the request has been sent,
the error path jumps to clunk_fid, which currently calls p9_fid_put(fid)
unconditionally.
This drops a reference to oldfid even though ownership of oldfid remains
with the caller. If this is the last reference, oldfid can be clunked and
destroyed while the caller still expects it to be valid. A later use or
put of oldfid can then trigger a use-after-free or refcount underflow.
Fix this by only putting fid in the clunk_fid error path when it does not
alias oldfid, matching the existing guard in the error path below.
This can be triggered when a multi-component walk is split into multiple
p9_client_walk() calls and a later non-cloning walk fails. A reproducer
and refcount warning logs are available on request.
Fixes:
|
||
|
Linus Torvalds
|
390d73adf8 |
power supply and reset changes for the 7.2 series
* power-supply drivers
- surface-rt-ec: new EC driver providing battery info for Microsoft Surface RT
- s2m-charger: new driver for battery charger in Samsung S2M PMICs
- max17042: rework driver
- bd71828: sysfs for auto input current limitation
- use named fields for struct platform_device_id and of_device_id entries
- misc. small cleanups and fixes
* reset drivers
- use named fields for struct platform_device_id and of_device_id entries
- misc. small cleanups and fixes
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Merge tag 'for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply drivers:
- New EC driver providing battery info for Microsoft Surface RT
- New driver for battery charger in Samsung S2M PMICs
- Rework max17042 driver
- sysfs control for bd71828 auto input current limitation
All over:
- Use named fields for struct platform_device_id and of_device_id
entries
- Misc small cleanups and fixes"
* tag 'for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (33 commits)
Documentation: ABI: sysfs-class-reboot-mode-reboot_modes: fix doc warnings
power: supply: charger-manager: fix refcount leak in is_full_charged()
power: supply: core: fix supplied_from allocations
power: supply: max17042_battery: Use modern PM ops to clear up warning
power: supply: add support for Samsung S2M series PMIC charger device
power: supply: Add support for Surface RT battery and charger
dt-bindings: embedded-controller: Document Surface RT EC
power: supply: bd71828: sysfs for auto input current limitation
power: supply: cpcap-charger: include missing <linux/property.h>
power: supply: cros_charge-control: Move MODULE_DEVICE_TABLE next to the table itself
power: supply: ab8500_fg: Fix typos in comments
power: supply: Use named initializers for arrays of i2c_device_data
power: supply: Remove unused jz4740-battery.h
power: reset: st-poweroff: Use of_device_get_match_data()
power: supply: bq257xx: Add fields for 'charging' and 'overvoltage' states
power: supply: bq257xx: Consistently use indirect get/set helpers
power: supply: bq257xx: Make the default current limit a per-chip attribute
power: supply: bq257xx: Fix VSYSMIN clamping logic
power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak
power: supply: max17042: fix OF node reference imbalance
...
|
||
|
Linus Torvalds
|
1a3746ccbb |
strncpy removal for v7.2-rc1
- Remove the per-arch strncpy implementations in alpha, m68k, powerpc,
x86, and xtensa
- Remove strncpy API
Over the last 6 years working on strncpy removal there were 362 commits
by 70 contributors. Folks with more than 1 commit were:
211 Justin Stitt <justinstitt@google.com>
22 Xu Panda <xu.panda@zte.com.cn>
21 Kees Cook <kees@kernel.org>
17 Thorsten Blum <thorsten.blum@linux.dev>
12 Arnd Bergmann <arnd@arndb.de>
4 Pranav Tyagi <pranav.tyagi03@gmail.com>
4 Lee Jones <lee@kernel.org>
2 Steven Rostedt <rostedt@goodmis.org>
2 Sam Ravnborg <sam@ravnborg.org>
2 Marcelo Moreira <marcelomoreira1905@gmail.com>
2 Krzysztof Kozlowski <krzk@kernel.org>
2 Kalle Valo <kvalo@kernel.org>
2 Jaroslav Kysela <perex@perex.cz>
2 Daniel Thompson <danielt@kernel.org>
2 Andrew Lunn <andrew@lunn.ch>
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Merge tag 'strncpy-removal-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull strncpy removal from Kees Cook:
- Remove the per-arch strncpy implementations in alpha, m68k, powerpc,
x86, and xtensa
- Remove strncpy API
Over the last 6 years working on strncpy removal there were 362
commits by 70 contributors. Folks with more than 1 commit were:
211 Justin Stitt <justinstitt@google.com>
22 Xu Panda <xu.panda@zte.com.cn>
21 Kees Cook <kees@kernel.org>
17 Thorsten Blum <thorsten.blum@linux.dev>
12 Arnd Bergmann <arnd@arndb.de>
4 Pranav Tyagi <pranav.tyagi03@gmail.com>
4 Lee Jones <lee@kernel.org>
2 Steven Rostedt <rostedt@goodmis.org>
2 Sam Ravnborg <sam@ravnborg.org>
2 Marcelo Moreira <marcelomoreira1905@gmail.com>
2 Krzysztof Kozlowski <krzk@kernel.org>
2 Kalle Valo <kvalo@kernel.org>
2 Jaroslav Kysela <perex@perex.cz>
2 Daniel Thompson <danielt@kernel.org>
2 Andrew Lunn <andrew@lunn.ch>
* tag 'strncpy-removal-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
string: Remove strncpy() from the kernel
xtensa: Remove arch-specific strncpy() implementation
x86: Remove arch-specific strncpy() implementation
powerpc: Remove arch-specific strncpy() implementation
m68k: Remove arch-specific strncpy() implementation
alpha: Remove arch-specific strncpy() implementation
|
||
|
Linus Torvalds
|
a975094bf9 |
Description for this pull request:
- Converts exfat buffered and direct I/O to the iomap infrastructure.
- Adds the supporting block mapping changes needed for that conversion,
including multi-cluster allocation, byte-based cluster mapping helpers.
- Supports SEEK_HOLE/SEEK_DATA and swapfile activation through iomap.
- Fix damaged upcase-table handling so a zero-sized table does not lead
to an infinite loop.
- Fix a potential use-after-free in exfat_find_dir_entry()
- Bound filename-entry advancement in exfat_find_dir_entry()
- Preserve benign secondary entries during rename and move
- Serialize truncate against in-flight direct I/O
- Simplify exfat_lookup().
- Replace unsafe arithmetic macros with static inline helpers.
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Merge tag 'exfat-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Convert exfat buffered and direct I/O to the iomap infrastructure
- Add the supporting block mapping changes needed for that conversion,
including multi-cluster allocation, byte-based cluster mapping
helpers
- Support SEEK_HOLE/SEEK_DATA and swapfile activation through iomap
- Fix damaged upcase-table handling so a zero-sized table does not lead
to an infinite loop
- Fix a potential use-after-free in exfat_find_dir_entry()
- Bound filename-entry advancement in exfat_find_dir_entry()
- Preserve benign secondary entries during rename and move
- Serialize truncate against in-flight direct I/O
- Simplify exfat_lookup()
- Replace unsafe arithmetic macros with static inline helpers
* tag 'exfat-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: bound uniname advance in exfat_find_dir_entry()
exfat: add swap_activate support
exfat: preserve benign secondary entries during rename and move
exfat: serialize truncate against in-flight DIO
exfat: add support for SEEK_HOLE and SEEK_DATA in llseek
exfat: add iomap direct I/O support
exfat: add iomap buffered I/O support
exfat: fix implicit declaration of brelse()
exfat: add data_start_bytes and exfat_cluster_to_phys_bytes() helper
exfat: add support for multi-cluster allocation
exfat: add exfat_file_open()
exfat: add balloc parameter to exfat_map_cluster() for iomap support
exfat: replace unsafe macros with static inline functions
exfat: simplify exfat_lookup()
exfat: fix potential use-after-free in exfat_find_dir_entry()
exfat: fix handling of damaged volume in exfat_create_upcase_table()
|
||
|
Linus Torvalds
|
dbad5db3a0 |
Description for this pull request:
- Harden handling of malformed on-disk metadata. It adds stricter
validation for attributes, attribute lists, index roots and entries,
EA entries, mapping pairs, and $LogFile restart areas. These changes
fix several out-of-bounds access, integer overflow, and inconsistent
metadata handling issues.
- Preventing a writeback deadlock involving extent MFT records
- Fixing resource leaks in fill_super() failure paths and the name cache
- Serializing volume label access and improving its error handling
- Fixing mapping-pairs decoding bounds and LCN overflow checks
- Keeping resident index root metadata consistent during resize
- Fixing the reported size of symbolic links
- Avoiding an unnecessary allocation for resident inline data
- Adds support for following and creating Windows native symbolic links.
Relative links, absolute links, and junctions are handled, with new
mount options controlling native symlink creation and absolute target
translation. The existing WSL symlink behavior remains the default.
- The unsupported quota code is removed, along with several smaller
cleanups.
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Merge tag 'ntfs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs updates from Namjae Jeon:
- Harden handling of malformed on-disk metadata.
This adds stricter validation for attributes, attribute lists, index
roots and entries, EA entries, mapping pairs, and $LogFile restart
areas. These changes fix several out-of-bounds access, integer
overflow, and inconsistent metadata handling issues.
- Prevent a writeback deadlock involving extent MFT records
- Fix resource leaks in fill_super() failure paths and the name cache
- Serialize volume label access and improving its error handling
- Fix mapping-pairs decoding bounds and LCN overflow checks
- Keep resident index root metadata consistent during resize
- Fix the reported size of symbolic links
- Avoid an unnecessary allocation for resident inline data
- Add support for following and creating Windows native symbolic links.
Relative links, absolute links, and junctions are handled, with new
mount options controlling native symlink creation and absolute target
translation. The existing WSL symlink behavior remains the default.
- The unsupported quota code is removed, along with several smaller
cleanups
* tag 'ntfs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs: (39 commits)
docs/fs/ntfs: add mount options to support Windows native symbolic links
ntfs: support creating Windows native symlinks
ntfs: clean up target name conversion for WSL symlinks
ntfs: add native_symlink mount option
ntfs: support following Windows native symlink with absolute paths
ntfs: support following Windows native symlink with relative paths
ntfs: fix incorrect size of symbolic link
ntfs: use direct pointer for inline data to avoid redundant allocation
ntfs: validate resident index root values on lookup
ntfs: update index root allocated size before shrink
ntfs: grow index root value before reparent header update
ntfs: reject non-resident records for resident-only attributes
ntfs: fix u16 truncation of restart-area length check
ntfs: bound the attribute-list entry in ntfs_read_inode_mount()
ntfs: bound the look-ahead attribute-list entry in ntfs_external_attr_find()
ntfs: validate resident attribute lists and harden the validator
ntfs: validate resident volume name values on lookup
ntfs: reinit search context before volume information lookup
ntfs: do not replace volume name after lookup errors
ntfs: validate attribute values on lookup
...
|
||
|
Linus Torvalds
|
5e2e14749c |
Landlock update for v7.2-rc1
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCajT1cxAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSAWcBAKtN0xWVNJM6jXj5q2EHO5vOFTvoLD9KNLsK 9FJoWN3dAQCWsuMI1OBovh6JguJ/jvwB2chwwa5NGxanhQ1LP9NyCg== =4cLz -----END PGP SIGNATURE----- Merge tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "This adds new Landlock access rights to control UDP bind and connect/send operations, and a new "quiet" feature to mute specific specific audit logs (and other future observability events). A few commits also fix Landlock issues" * tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (24 commits) selftests/landlock: Add tests for invalid use of quiet flag selftests/landlock: Add tests for quiet flag with scope selftests/landlock: Add tests for quiet flag with net rules selftests/landlock: Add tests for quiet flag with fs rules selftests/landlock: Replace hard-coded 16 with a constant samples/landlock: Add quiet flag support to sandboxer landlock: Suppress logging when quiet flag is present landlock: Add API support and docs for the quiet flags landlock: Add a place for flags to layer rules landlock: Add documentation for UDP support samples/landlock: Add sandboxer UDP access control selftests/landlock: Add tests for UDP send selftests/landlock: Add tests for UDP bind/connect landlock: Add UDP send+connect access control landlock: Add UDP bind() access control landlock: Fix unmarked concurrent access to socket family selftests/landlock: Explicitly disable audit in teardowns selftests/landlock: Test SCOPE_SIGNAL on the SIGIO/fowner pgid path landlock: Fix LANDLOCK_SCOPE_SIGNAL bypass on the SIGIO path landlock: Demonstrate best-effort allowed_access filtering ... |
||
|
Linus Torvalds
|
e2c0595b56 |
Hi,
Please, pull. This pull request contains only bug fixes. BR, Jarkko -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRE6pSOnaBC00OEHEIaerohdGur0gUCajSSQgAKCRAaerohdGur 0lJwAQCVLIZzXr0VcKnuCvJpaENDz+5fvyHzHYwIkaLcwgW9CAD+NQj3/UUkGSFA jElaOoOPOkcnPFL/ndl7CZdt9c5V/Ao= =20GM -----END PGP SIGNATURE----- Merge tag 'for-next-keys-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd Pull keys update from Jarkko Sakkinen: "This contains only bug fixes" * tag 'for-next-keys-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: keys: keyctl_pkey: replace BUG with return -EOPNOTSUPP keys: request_key: replace BUG with return -EINVAL keys: Pin request_key_auth payload in instantiate paths keys: prevent slab cache merging for key_jar keys: Replace strcpy(derived_buf, "AUTH_KEY") with strscpy(..., HASH_SIZE) KEYS: Use acquire when reading state in keyring search keys/trusted_keys: mark 'migratable' as __ro_after_init keys: use kmalloc_flex in user_preparse KEYS: trusted: Debugging as a feature KEYS: encrypted: Remove unnecessary selection of CRYPTO_RNG KEYS: fix overflow in keyctl_pkey_params_get_2() |
||
|
Linus Torvalds
|
0798268aa4 |
integrity-v7.2
-----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQQdXVVFGN5XqKr1Hj7LwZzRsCrn5QUCajHX/BQcem9oYXJAbGlu dXguaWJtLmNvbQAKCRDLwZzRsCrn5S2uAQD4xzxxmRLoX/YWDv0WIBrHzug+lcku UWoSDBuWIaauKQEAuPQg1LZ63Xunn0yEFThvfLR69Ap+RjYXPwg/tI36uQU= =W71T -----END PGP SIGNATURE----- Merge tag 'integrity-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity Pull IMA updates from Mimi Zohar: - Introduce IMA and EVM post-quantum ML-DSA signature support ML-DSA signature support for IMA and EVM is limited to sigv3 signatures, which calculates and verifies a hash of a compact structure containing the file data/metadata hash, hash type, and hash algorithm. IMA and EVM still calculate the file data/metadata hashes respectively. - Introduce support for removing IMA measurement list records stored in kernel memory The IMA measurement list can grow large depending on policy, but removing records breaks remote attestation, unless they are safely preserved and made available for attestation requests. Until environments are prepared to preserve the measurement records, a new CONFIG_IMA_STAGING Kconfig option is introduced to guard against deletion. Several approaches for removing measurement list records were evaluated but rejected due to filesystem constraints, the introduction of a new critical data record, and locking concerns. Two methods are being upstreamed: staged deletion with confirmation, and staged deletion of N records without confirmation. Both methods minimize the period during which new measurements are blocked from being appended to the measurement list by staging the measurement list. A comparison of the two methods is included in the documentation. - Some code cleanup, and a couple of bug fixes * tag 'integrity-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: doc: security: Add documentation of exporting and deleting IMA measurements ima: Support staging and deleting N measurements records ima: Add support for flushing the hash table when staging measurements ima: Add support for staging measurements with prompt ima: Introduce ima_dump_measurement() ima: Use snprintf() in create_securityfs_measurement_lists ima: Mediate open/release method of the measurements list ima: Introduce _ima_measurements_start() and _ima_measurements_next() ima: Introduce per binary measurements list type binary_runtime_size value ima: Introduce per binary measurements list type ima_num_records counter ima: Replace static htable queue with dynamically allocated array ima: Remove ima_h_table structure evm: terminate and bound the evm_xattrs read buffer integrity: Add support for sigv3 verification using ML-DSA keys integrity: Refactor asymmetric_verify for reusability integrity: Check that algo parameter is within valid range integrity: Check for NULL returned by asymmetric_key_public_key ima: return error early if file xattr cannot be changed ima: Fix sigv3 signature handling for EVM_IMA_XATTR_DIGSIG |
||
|
Linus Torvalds
|
a552c81ff4 |
mm.git review status for mm-hotfixes-stable..mm-stable
Everything:
Total patches: 321
Reviews/patch: 1.52
Reviewed rate: 68%
Excluding DAMON:
Total patches: 227
Reviews/patch: 2.07
Reviewed rate: 90%
Excluding DAMON and selftests:
Total patches: 203
Reviews/patch: 2.14
Reviewed rate: 91%
Patchsets in this merge:
- The 2 patch series "selftests/mm: clean up build output and verbosity"
from Li Wang removes some noise from the MM selftests build out.
- The 3 patch series "mm: Free contiguous order-0 pages efficiently"
from Ryan Roberts speeds up the freeing of a batch of 0-order pages by
first scanning them for coalescing opportunities. This is applicable to
vfree() and to the releasing of frozen pages.
- The 11 patch series "mm/damon: introduce DAMOS failed region quota
charge ratio" from SeongJae Park addresses a DAMOS usability issue: The
DAMOS quota often exhausts prematurely because it charges for all memory
attempted, causing slow and inconsistent performance when actions fail
on unreclaimable memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- The 8 patch series "selftests/cgroup: improve zswap tests robustness
and support large page sizes" from Li Wang fixes various spurious
failures and improves the overall robustness of the cgroup zswap
selftests.
- The 3 patch series "fix MAP_DROPPABLE not supported errno" from
Anthony Yznaga fixes an issue in the mlock selftests on arm32.
- The 2 patch series "mm: huge_memory: clean up defrag sysfs with
shared" from Breno Leitao does some maintenance work in the huge_memory
code.
- The 3 patch series "treewide: fixup gfp_t printks" from Brendan
Jackman uses the special vprintf() gfp_t conversion in various places.
- The 6 patch series "mm: Fix vmemmap optimization accounting and
initialization" from Muchun Song fixes several bugs in the vmemmap
optimization, mainly around incorrect page accounting and memmap
initialization in the DAX and memory hotplug paths. It also fixes
pageblock migratetype initialization and struct page initialization for
ZONE_DEVICE compound pages.
- The 4 patch series "mm/damon: repost non-hotfix reviewed patches in
damon/next tree" from is a sprinkle of unrelated minor bugfixes for
DAMON.
- The 3 patch series "mm: remove page_mapped()" from David Hildenbrand
remove this function from the tree, replacing it with folio_mapped().
- The 10 patch series "mm/damon: let DAMON be paused and resumed" from
SeongJae Park permits DAMON to be paused and resumed without losing its
current state.
- The 3 patch series "kasan: hw_tags: Disable tagging for stack and
page-tables" from Muhammad Usama Anjum simplifies and speeds up kasan by
removing its ineffective tagging of stacks and page tables.
- The 7 patch series "mm/damon/reclaim,lru_sort: monitor all system rams
by default" from SeongJae Park simplifies deployment on diverse hardware
like NUMA systems by updating DAMON_RECLAIM and DAMON_LRU_SORT to
automatically monitor the physical address range covering all System RAM
areas by default, replacing the overly restrictive behavior that only
targeted the single largest memory block to save on negligible overhead.
- The 2 patch series "mm/damon/sysfs: document filters/ directory as
deprecated" from SeongJae Park updates some DAMON docs.
- The 8 patch series "mm: use spinlock guards for zone lock" from Dmitry
Ilvokhin switches zone->lock handling over to using the guard()
mechanisms.
- The 2 patch series "mm/filemap: tighten mmap_miss hit accounting" from
fujunjie fixes a flaw where the mmap_miss counter over-credited page
cache hits during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads.
- The 2 patch series "selftests/cgroup: Fix false positive failures in
test_percpu_basic" from Li Wang fixes a couple of false-positives in the
cgroup kmem selftests.
- The 2 patch series "mm/damon/reclaim: support monitoring intervals
auto-tuning" from SeongJae Park adds a new parameter to DAMON permitting
DAMON_RECLAIM to automatically tune DAMON's sampling and aggregation
intervals.
- The 2 patch series "mm/damon/stat: add kdamond_pid parameter" from
SeongJae Park chnges DAMON_STAT to provide the pid of its kdamond.
- The 2 patch series "mm/kmemleak: dedupe verbose scan output" from
Breno Leitao removes large amounts of duplicated backtraces from the
verbose-mode kmemleak output.
- The 8 patch series "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)"
from David Hildenbrand reduces our use of CONFIG_HAVE_BOOTMEM_INFO_NODE,
with a view to removing it entirely in a later series.
- The 2 patch series "mm/damon: validate min_region_size to be power of
2" from Liew Rui Yan prevents users from passing a non-power-of-2 value
of `addr_unit', as this later results in undesirable behavior.
- The 2 patch series "mm: document read_pages and simplify usage" from
Frederick Mayle does as claimed.
- The 3 patch series "tools/mm/page-types: Fix misc bugs" from Ye Liu
fixes three issues in tools/mm/page-types.c.
- The 4 patch series "mm: misc cleanups from __GFP_UNMAPPED series" from
Brendan Jackman implements several cleanups in the page allocator and
related code.
- The 12 patch series "mm, swap: swap table phase IV: unify allocation"
from Kairui Song unifies the allocation and charging of anon and shmem
swap in folios, provides better synchronization, consolidates the
metadata management, hence dropping the static array and map, and
improves performance.
- The 28 patch series "mm/damon: introduce data attributes monitoring"
from SeongJae Park extends DAMON for monitoring general data attributes
other than accesses.
- The 5 patch series "mm/vmalloc: free unused pages on vrealloc()
shrink" from Shivam Kalra implements the TODO in vrealloc() to unmap and
free unused pages when shrinking across a page boundary.
- The 3 patch series "mm/damon: documentation and comment fixes" from
niecheng does as advertised.
- The 3 patch series "remove mmap_action success, error hooks" from
Lorenzo Stoakes eliminates custom hooks from mmap_action by removing the
problematic success_hook which allowed drivers to improperly access
uninitialized VMAs. It replaces the error_hook with a simple error-code
field and updates the memory char driver accordingly.
- The 14 patch series "mm/damon: minor improvements for code readability
and tests" from SeongJae Park implements minor improvements in code
readability and tests for DAMON.
- The 2 patch series "mm/damon: fix macro arguments and clarify quota
goals doc" from Maksym Shcherba does those things.
- The 2 patch series "userfaultfd: merge fs/userfaultfd.c into
mm/userfaultfd.c" from Mike Rapoport performs that code movement.
- The 15 patch series "mm/mglru: improve reclaim loop and dirty folio"
from Kairui Song and others cleans up and slightly improves MGLRU's
reclaim loop and dirty writeback handling. Large performance
improvements are measured.
- The 3 patch series "use vma locks for proc/pid/{smaps|numa_maps}
reads" from Suren Baghdasaryan uses per-vma locks when reading
/proc/pid/smaps and /proc/pid/numa_maps similar to reduce contention on
central mmap_lock.
- The 2 patch series "refactors thpsize_shmem_enabled_store() and
thpsize_shmem_enabled_show()" from Ran Xiaokai provides some cleanup
work in the THP code.
- The 2 patch series "selftests/memfd: fix compilation warnings" from
Konstantin Khorenko fixes a few build glitches in the memfd selftest
code.
- The 4 patch series "memcg: shrink obj_stock_pcp and cache multiple
objcgs" from Shakeel Butt resolves a 68% performance regression caused
by NUMA-node cache thrashing around struct obj_stock_pcp by shrinking
its existing fields and expanding it into a multi-slot array that caches
up to five obj_cgroup pointers per CPU, allowing per-node variants of
the same memcg to coexist within a single 64-byte cache line.
- The 2 patch series "zram: writeback fixes" from Sergey Senozhatsky
addresses a couple of unrelated zram writeback issues.
- The 9 patch series "mm: switch THP shrinker to list_lru" from Johannes
Weiner resolves NUMA-awareness issues and streamlines callsite
interaction by refactoring and extending the list_lru API to completely
replace the complex, open-coded deferred split queue for Transparent
Huge Pages (THPs).
- The 2 patch series "mm: improve large folio readahead for exec memory"
from Usama Arif improves large-folio readahead on systems like 64K-page
arm64 by preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- The 6 patch series "userfaultfd/pagemap: pre-existing fixes" from
Kiryl Shutsemau fixes a bunch of minor issues in the
userfaultfd/pagemap, all of which were flagged by Sashiko review of
proposed new material.
- The 5 patch series "mm/sparse-vmemmap: Provide generic
vmemmap_set_pmd() and vmemmap_check_pmd()" from Muchun Song provides
generic versions of these two functions so the four arch-specific
implementations can be removed.
- The 2 patch series "mm/swap, PM: hibernate: fix swapoff race in
uswsusp by pinning swap device" from Youngjun Park addresses a
uswsusp-vs-swapoff race and reduces the swap device reference
taking/releasing frequency.
- The 2 patch series "mm/hmm: A fix and a selftest" from Dev Jain does
as claimed.
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Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "selftests/mm: clean up build output and verbosity" (Li Wang)
Remove some noise from the MM selftests build
- "mm: Free contiguous order-0 pages efficiently" (Ryan Roberts)
Speed up the freeing of a batch of 0-order pages by first scanning
them for coalescing opportunities. This is applicable to vfree() and
to the releasing of frozen pages
- "mm/damon: introduce DAMOS failed region quota charge ratio"
(SeongJae Park)
Address a DAMOS usability issue: The DAMOS quota often exhausts
prematurely because it charges for all memory attempted, causing slow
and inconsistent performance when actions fail on unreclaimable
memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- "selftests/cgroup: improve zswap tests robustness and support large
page sizes" (Li Wang)
Fix various spurious failures and improves the overall robustness of
the cgroup zswap selftests
- "fix MAP_DROPPABLE not supported errno" (Anthony Yznaga)
Fix an issue in the mlock selftests on arm32
- "mm: huge_memory: clean up defrag sysfs with shared" (Breno Leitao)
Some maintenance work in the huge_memory code
- "treewide: fixup gfp_t printks" (Brendan Jackman)
Use the special vprintf() gfp_t conversion in various places
- "mm: Fix vmemmap optimization accounting and initialization" (Muchun
Song)
Fix several bugs in the vmemmap optimization, mainly around incorrect
page accounting and memmap initialization in the DAX and memory
hotplug paths. It also fixes pageblock migratetype initialization and
struct page initialization for ZONE_DEVICE compound pages
- "mm/damon: repost non-hotfix reviewed patches in damon/next tree"
A sprinkle of unrelated minor bugfixes for DAMON
- "mm: remove page_mapped()" (David Hildenbrand)
Remove this function from the tree, replacing it with folio_mapped()
- "mm/damon: let DAMON be paused and resumed" (SeongJae Park)
Allow DAMON to be paused and resumed without losing its current state
- "kasan: hw_tags: Disable tagging for stack and page-tables" (Muhammad
Usama Anjum)
Simplify and speed up kasan by removing its ineffective tagging of
stacks and page tables
- "mm/damon/reclaim,lru_sort: monitor all system rams by default"
(SeongJae Park)
Simplify deployment on diverse hardware like NUMA systems by updating
DAMON_RECLAIM and DAMON_LRU_SORT to automatically monitor the
physical address range covering all System RAM areas by default,
replacing the overly restrictive behavior that only targeted the
single largest memory block to save on negligible overhead
- "mm/damon/sysfs: document filters/ directory as deprecated" (SeongJae
Park)
Update some DAMON docs
- "mm: use spinlock guards for zone lock" (Dmitry Ilvokhin)
Switch zone->lock handling over to using the guard() mechanisms
- "mm/filemap: tighten mmap_miss hit accounting" (fujunjie)
Fix a flaw where the mmap_miss counter over-credited page cache hits
during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads
- "selftests/cgroup: Fix false positive failures in test_percpu_basic"
(Li Wang)
Fix a couple of false-positives in the cgroup kmem selftests
- "mm/damon/reclaim: support monitoring intervals auto-tuning"
(SeongJae Park)
Add a new parameter to DAMON permitting DAMON_RECLAIM to
automatically tune DAMON's sampling and aggregation intervals
- "mm/damon/stat: add kdamond_pid parameter" (SeongJae Park)
Change DAMON_STAT to provide the pid of its kdamond
- "mm/kmemleak: dedupe verbose scan output" (Breno Leitao)
Remove large amounts of duplicated backtraces from the verbose-mode
kmemleak output
- "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)" (David
Hildenbrand)
Reduce our use of CONFIG_HAVE_BOOTMEM_INFO_NODE, with a view to
removing it entirely in a later series
- "mm/damon: validate min_region_size to be power of 2" (Liew Rui Yan)
Prevent users from passing a non-power-of-2 value of `addr_unit', as
this later results in undesirable behavior
- "mm: document read_pages and simplify usage" (Frederick Mayle)
- "tools/mm/page-types: Fix misc bugs" (Ye Liu)
Fix three issues in tools/mm/page-types.c
- "mm: misc cleanups from __GFP_UNMAPPED series" (Brendan Jackman)
Implement several cleanups in the page allocator and related code
- "mm, swap: swap table phase IV: unify allocation" (Kairui Song)
Unify the allocation and charging of anon and shmem swap in folios,
provides better synchronization, consolidates the metadata
management, hence dropping the static array and map, and improves
performance
- "mm/damon: introduce data attributes monitoring" (SeongJae Park(
Extend DAMON to monitor general data attributes other than accesses
- "mm/vmalloc: free unused pages on vrealloc() shrink" (Shivam Kalra)
Implement the TODO in vrealloc() to unmap and free unused pages when
shrinking across a page boundary
- "mm/damon: documentation and comment fixes" (niecheng)
- "remove mmap_action success, error hooks" (Lorenzo Stoakes)
Eliminate custom hooks from mmap_action by removing the problematic
success_hook which allowed drivers to improperly access uninitialized
VMAs. It replaces the error_hook with a simple error-code field and
updates the memory char driver accordingly
- "mm/damon: minor improvements for code readability and tests"
(SeongJae Park)
- "mm/damon: fix macro arguments and clarify quota goals doc" (Maksym
Shcherba)
- "userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c" (Mike
Rapoport)
- "mm/mglru: improve reclaim loop and dirty folio" (Kairui Song and
others)
Clean up and slightly improves MGLRU's reclaim loop and dirty
writeback handling. Large performance improvements are measured
- "use vma locks for proc/pid/{smaps|numa_maps} reads" (Suren
Baghdasaryan)
Use per-vma locks when reading /proc/pid/smaps and numa_maps similar
to reduce contention on central mmap_lock
- "refactors thpsize_shmem_enabled_store() and thpsize_shmem_enabled_show()"
(Ran Xiaokai)
Some cleanup work in the THP code
- "selftests/memfd: fix compilation warnings" (Konstantin Khorenko)
Fix a few build glitches in the memfd selftest code.
- "memcg: shrink obj_stock_pcp and cache multiple objcgs" (Shakeel
Butt)
Resolve a 68% performance regression caused by NUMA-node cache
thrashing around struct obj_stock_pcp by shrinking its existing
fields and expanding it into a multi-slot array that caches up to
five obj_cgroup pointers per CPU, allowing per-node variants of the
same memcg to coexist within a single 64-byte cache line.
- "zram: writeback fixes" (Sergey Senozhatsky)
address a couple of unrelated zram writeback issues
- "mm: switch THP shrinker to list_lru" (Johannes Weiner)
Resolve NUMA-awareness issues and streamlines callsite interaction by
refactoring and extending the list_lru API to completely replace the
complex, open-coded deferred split queue for Transparent Huge Pages
- "mm: improve large folio readahead for exec memory" (Usama Arif)
Improve large-folio readahead on systems like 64K-page arm64 by
preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- "userfaultfd/pagemap: pre-existing fixes" (Kiryl Shutsemau)
Fix a bunch of minor issues in the userfaultfd/pagemap, all of which
were flagged by Sashiko review of proposed new material
- "mm/sparse-vmemmap: Provide generic vmemmap_set_pmd() and
vmemmap_check_pmd()" (Muchun Song)
Provide generic versions of these two functions so the four
arch-specific implementations can be removed.
- "mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap
device" (Youngjun Park)
Address a uswsusp-vs-swapoff race and reduces the swap device
reference taking/releasing frequency.
- "mm/hmm: A fix and a selftest" (Dev Jain)
* tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries
fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
lib/test_hmm: check alloc_page_vma() return value and handle OOM
mm/compaction: cap compact_gap() at COMPACT_CLUSTER_MAX
mm/swap: remove redundant swap device reference in alloc/free
mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap device
mm/filemap: use folio_next_index() for start
vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()
sparc/mm: drop vmemmap_check_pmd helper and use generic code
loongarch/mm: drop vmemmap_check_pmd helper and use generic code
riscv/mm: drop vmemmap_pmd helpers and use generic code
arm64/mm: drop vmemmap_pmd helpers and use generic code
mm/sparse-vmemmap: provide generic vmemmap_set_pmd() and vmemmap_check_pmd()
rust: page: mark Page::nid as inline
userfaultfd: build __VMA_UFFD_FLAGS from config-gated masks
userfaultfd: gate must_wait writability check on pte_present()
mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade
fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
...
|
||
|
Linus Torvalds
|
c98d767b34 |
Arm:
"This is a bit of an odd merge window on the KVM/arm64 front. There is
absolutely no new feature in the pull request. It is purely fixes,
because it is simply becoming too hard to review new stuff when so
many AI-fuelled fixes hit the list".
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime.
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed
as well.
- Large set of pKVM fixes, mostly addressing recurring issues
around hypervisor tracking of donated pages in obscure cases
where the donation could fail and leave things in a bizarre
state.
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned
out to be far more invasive than initially expected...
- Reduce the overhead of L1/L2 context switch by not touching
the FP registers.
- Fix the way non-implemented page sizes are dealt with when
a guest insist on using them for S2 translation.
- The usual set of low-impact fixes and cleanups all over the map.
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX)
that caused the FPU load request.
- Some enhancements about interrupt injection.
- Some bug fixes and other small changes.
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic
PTE updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on
a memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes.
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace.
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root.
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both
of these are preparatory changes for upcoming APX support.
- Clean up KVM's register tracking and storage, primarily to prepare for
APX support, which expands the maximum number of GPRs from 16 to 32.
- Keep a single copy of the PDPTRs rather than two, since architecturally
there is just one.
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor code
gets a chance to handle things like reaping the PML buffer.
- Update KVM's view of PV async enabling if and only if the MSR write fully
succeeds.
- Fix a variety of issues where the emulator doesn't honor guest-debug state,
and clean up related code along the way.
- Synthesize EPT Violation and #NPF "error code" bits when injecting faults
into L1 that didn't originate in hardware (in which case the VMCS/VMCB
doesn't hold relevant information).
- Add support for virtualizing (well, emulating) AMD's flavor of CPL>0 CPUID
faulting.
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and fix a
variety of minor bugs along the way.
- Fix an OOB memory access due to not checking the VP ID when handling a
Hyper-V PV TLB flush for L2.
- Fix a bug in the mediated PMU's handling of fixed counters that allowed the
guest to bypass the PMU event filter.
- Allow userspace to return EAGAIN when handling SNP and TDX hypercalls, so
the KVM can forward a "retry" status code to the guest, and reserve all
unused error codes for future usage.
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific logic as
possible into the TDX code, and to funnel (almost) all S-EPT updates into
a single chokepoint. The motivation is largely to prepare for upcoming
Dynamic PAMT support, but the cleanups are nice to have on their own.
- Plug a hole in shadow page table handling, where KVM fails to recursively
zap nested EPT/NPT shadow page tables when the nested hypervisor tears
down its own EPT/NPT page tables from the bottom up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in the
generic section; also run with MBEC enabled even for non-nested mode.
- Use the kernel's "enum pg_level" in the TDX APIs instead of the TDX-Module's
level definitions (which are 0-based).
- Rework the TDX memory APIs to not require/assume that guest memory is
backed by "struct page" (in prepartion for guest_memfd hugepage support).
- Fix a largely benign bug where KVM TDX would incorrectly state it could
emulate several x2APIC MSRs.
- Use the "safe" WRMSR API when proxying LBR MSR writes as the to-be-written
value is guest controlled and completely unvalidated.
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in the
generic section; also run with GMET enabled even for non-nested mode.
- Fixes and minor cleanups to GHCB handling, on top of the earlier work
already merged into 7.1-rc.
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers.
- Add support for virtualizing gPAT (KVM previously just used L1's PAT when
running L2).
- Fix goofs where KVM mishandles side effects (e.g. single-step and PMC
updates) when emulating VMRUN.
- Fix a variety of bugs in AVIC's handling of x2APIC MSR interception, most
notably where KVM didn't disable interception of IRR, ISR, and TMR regs.
- Add support for virtualizing Host-Only/Guest-Only bits in the mediated PMU.
- Don't advertise support for unusable VM types, and account for VM types
that are disabled by firmware, e.g. to mitigate security vulnerabilities.
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with bugs and
unnecessarily complicated, and add comprehensive tests.
- Clean up and deduplicate the SEV page pinning code.
- Fix minor goofs related to writing back CPUID information after firmware
rejects a CPUID page for an SNP vCPU.
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to follow
the kernel's nomenclature, e.g. for mmu_notifiers.
- Use guard() to cleanup up various KVM+VFIO flows.
- Minor cleanups.
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a gmem
range to multiple memslots, and fix the test that was supposed to ensure
KVM returns -EEXIST.
- Treat memslot binding offsets and sizes as unsigned values to fix a bug
where KVM interprets a large "offset + size" as a negative value and allows
a nonsensical offset.
- Use the inode number instead of the page offset for the NUMA interleaving
index to fix a bug where the effective index would jump by two for
consecutive pages (the caller also adds in the page offset).
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the first
pass, as always waiting only 1ms hid a KVM RISC-V bug as the test reaped the
bitmap before KVM could build up enough state to hit the bug.
- A pile of one-off fixes and cleanups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"arm64:
This is a bit of an odd merge window on the KVM/arm64 front. There
is absolutely no new feature in the pull request. It is purely
fixes, because it is simply becoming too hard to review new stuff
when so many AI-fuelled fixes hit the list.
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed as well
- Large set of pKVM fixes, mostly addressing recurring issues around
hypervisor tracking of donated pages in obscure cases where the
donation could fail and leave things in a bizarre state
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned out to
be far more invasive than initially expected..
- Reduce the overhead of L1/L2 context switch by not touching the FP
registers
- Fix the way non-implemented page sizes are dealt with when a guest
insist on using them for S2 translation
- The usual set of low-impact fixes and cleanups all over the map
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX) that
caused the FPU load request
- Some enhancements about interrupt injection
- Some bug fixes and other small changes
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic PTE
updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on a
memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both of
these are preparatory changes for upcoming APX support
- Clean up KVM's register tracking and storage, primarily to prepare
for APX support, which expands the maximum number of GPRs from 16
to 32
- Keep a single copy of the PDPTRs rather than two, since
architecturally there is just one
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor
code gets a chance to handle things like reaping the PML buffer
- Update KVM's view of PV async enabling if and only if the MSR write
fully succeeds
- Fix a variety of issues where the emulator doesn't honor
guest-debug state, and clean up related code along the way
- Synthesize EPT Violation and #NPF "error code" bits when injecting
faults into L1 that didn't originate in hardware (in which case the
VMCS/VMCB doesn't hold relevant information)
- Add support for virtualizing (well, emulating) AMD's flavor of
CPL>0 CPUID faulting
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and
fix a variety of minor bugs along the way
- Fix an OOB memory access due to not checking the VP ID when
handling a Hyper-V PV TLB flush for L2
- Fix a bug in the mediated PMU's handling of fixed counters that
allowed the guest to bypass the PMU event filter
- Allow userspace to return EAGAIN when handling SNP and TDX
hypercalls, so the KVM can forward a "retry" status code to the
guest, and reserve all unused error codes for future usage
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific
logic as possible into the TDX code, and to funnel (almost) all
S-EPT updates into a single chokepoint. The motivation is largely
to prepare for upcoming Dynamic PAMT support, but the cleanups are
nice to have on their own
- Plug a hole in shadow page table handling, where KVM fails to
recursively zap nested EPT/NPT shadow page tables when the nested
hypervisor tears down its own EPT/NPT page tables from the bottom
up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in
the generic section; also run with MBEC enabled even for non-nested
mode
- Use the kernel's "enum pg_level" in the TDX APIs instead of the
TDX-Module's level definitions (which are 0-based)
- Rework the TDX memory APIs to not require/assume that guest memory
is backed by "struct page" (in prepartion for guest_memfd hugepage
support)
- Fix a largely benign bug where KVM TDX would incorrectly state it
could emulate several x2APIC MSRs
- Use the "safe" WRMSR API when proxying LBR MSR writes as the
to-be-written value is guest controlled and completely unvalidated
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in
the generic section; also run with GMET enabled even for non-nested
mode
- Fixes and minor cleanups to GHCB handling, on top of the earlier
work already merged into 7.1-rc
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers
- Add support for virtualizing gPAT (KVM previously just used L1's
PAT when running L2)
- Fix goofs where KVM mishandles side effects (e.g. single-step and
PMC updates) when emulating VMRUN
- Fix a variety of bugs in AVIC's handling of x2APIC MSR
interception, most notably where KVM didn't disable interception of
IRR, ISR, and TMR regs
- Add support for virtualizing Host-Only/Guest-Only bits in the
mediated PMU
- Don't advertise support for unusable VM types, and account for VM
types that are disabled by firmware, e.g. to mitigate security
vulnerabilities
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with
bugs and unnecessarily complicated, and add comprehensive tests
- Clean up and deduplicate the SEV page pinning code
- Fix minor goofs related to writing back CPUID information after
firmware rejects a CPUID page for an SNP vCPU
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to
follow the kernel's nomenclature, e.g. for mmu_notifiers
- Use guard() to cleanup up various KVM+VFIO flows
- Minor cleanups
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a
gmem range to multiple memslots, and fix the test that was supposed
to ensure KVM returns -EEXIST
- Treat memslot binding offsets and sizes as unsigned values to fix a
bug where KVM interprets a large "offset + size" as a negative
value and allows a nonsensical offset
- Use the inode number instead of the page offset for the NUMA
interleaving index to fix a bug where the effective index would
jump by two for consecutive pages (the caller also adds in the page
offset)
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the
first pass, as always waiting only 1ms hid a KVM RISC-V bug as the
test reaped the bitmap before KVM could build up enough state to
hit the bug
- A pile of one-off fixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (326 commits)
KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
KVM: x86: Fix shadow paging use-after-free due to unexpected role
KVM: s390: Introducing kvm_arch_set_irq_inatomic fast inject
KVM: s390: Enable adapter_indicators_set to use mapped pages
KVM: s390: Add map/unmap ioctl and clean mappings post-guest
riscv: kvm: Use endian-specific __lelong for NACL shared memory
KVM: selftests: access_tracking_perf_test: bump number of NUMA nodes to 32
KVM: s390: vsie: Implement ASTFLEIE facility 2
KVM: s390: vsie: Refactor handle_stfle
s390/sclp: Detect ASTFLEIE 2 facility
KVM: s390: Minor refactor of base/ext facility lists
KVM: x86/mmu: move pdptrs out of the MMU
KVM: x86: check that kvm_handle_invpcid is only invoked with shadow paging
KVM: nSVM: invalidate cached PDPTRs across nested NPT transitions
KVM: nVMX: remove unnecessary code in prepare_vmcs02_rare
KVM: x86: remove nested_mmu from mmu_is_nested()
KVM: arm64: vgic-its: Make ABI commit helpers return void
KVM: s390: Initialize KVM_S390_GET_CMMA_BITS memory
LoongArch: KVM: Add missing slots_lock for device register/unregister
LoongArch: KVM: Validate irqchip index in irqfd routing
...
|
||
|
Linus Torvalds
|
08c7183f5b |
- use software nodes for GPIO code
- cleanups and fixes -----BEGIN PGP SIGNATURE----- iQJOBAABCAA4FiEEbt46xwy6kEcDOXoUeZbBVTGwZHAFAmo1JiIaHHRzYm9nZW5k QGFscGhhLmZyYW5rZW4uZGUACgkQeZbBVTGwZHDNBQ//X28UvppTn3NQnbQRL4ba Na6HVSRiPMqIiCQ5b1kOYXYSAZtPW0Y+GU9X7NVNKJJJTUMbqTGpNgLCR9u7MyP9 me7uX+duscjZrSH3934/sOXm2xS2Z+JLI4O5GVWpB6hxXW2IiGdxw38mFyPtO4t/ Z+Lz4LZbn/MC8jGXZ1pNNEH2xF/dq8/nNpLqOqTZbehabsyKkZZN9uJ5JJYxL5Vh QsbWo8hYt/O3zuF/nb6e/kTulKNcDmSQzPyeeMrEQbbzSAcWtbMbFRce7qKPgWPv B0xkNJcSh5mDc5SD6LHGCmE4FG3jdgdPjTtvmW2UDYZYgndBeWW9knwDIEc4TL0j gVBXoXXygvv4GDtccfOxxaU0EiP1JiUfnrqci5cyzYG50gzKJb6cK9GsJBnbbXQ2 oKU5i/dmfRbePZH6vkm765Je+4x/lSQM44hR7DhSxnr6BQpBhARm8J5qrbi9eUdK ii2uaqn2raFvZ3NHSP7lqj/5HpHDRGeK9fsiHEQbOibYSTDQK4Urqc6nrcyt7+cA wG/xa6oqFozJKpMEQONcbW47skCIQc6QJckJlRHisAMsr82IGGZ5O+YlDjxJa31H +hyzgG1VuiVEgUrNaTvx9srECqN8OxWMa3kIgIx+DcTaMqr4vxM/fLTZcz+MfA4G Swnnt5PzxuFBUhQyqcyr6kU= =t5+n -----END PGP SIGNATURE----- Merge tag 'mips_7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS updates from Thomas Bogendoerfer: - use software nodes for GPIO code - cleanups and fixes * tag 'mips_7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (41 commits) mips: select legacy gpiolib interfaces where used MIPS: lib: Remove '.hidden' for local symbols MIPS: VDSO: Avoid including .got in dynamic segment MIPS: smp: report dying CPU to RCU in stop_this_cpu() MIPS: kernel: proc: Delete unnecessary braces in show_cpuinfo() MIPS: kernel: proc: Use seq_putc() calls in show_cpuinfo() mips: sched: Fix CPUMASK_OFFSTACK memory corruption MIPS: mm: Fix out-of-bounds write in maar_res_walk() MIPS: ath79: reduce ARCH_DMA_MINALIGN mips: dts: ar9132: fix wdt node name mips: Remove remaining defconfig references to the pktcdvd driver MIPS: mm: remove comment referring to removed CONFIG_MIPS_CMP MIPS: alchemy: db1300: switch to static device properties MIPS: alchemy: gpr: switch to static device properties MIPS: alchemy: db1000: use nodes attached to GPIO chips in properties MIPS: alchemy: mtx1: attach software nodes to GPIO chips MIPS: alchemy: provide visible function prototypes to board files MIPS: alchemy: platform: add missing include MIPS: ip22-gio: do not export device release function MIPS: ip22-gio: switch to dynamic root device ... |
||
|
Linus Torvalds
|
91981f96d2 |
powerpc updates for 7.2
- Enable GENERIC_ENTRY feature
- Add missing property in DTS for mpc83xx platform
- Enable building of DTB based on platfrom Kconfig
- Add powerpc64 JIT support for timed may_goto
- Add timeout to RTAS busy-wait loops
- Simplify cpumask api usage for cpuinfo display
- implement get_direction() in cpm1 (8xx platform)
- MAINTAINERS file update for power VMX AES entries
- Fixes to handle preempt count
- Restore KUAP registers on syscall restart exit
- define MIN_RMA in bytes rather than MB
- misc fixes and cleanups
Thanks to:
Aboorva Devarajan, Adriano Vero, Amit Machhiwal, Anushree Mathur, Bartosz
Golaszewski, Christophe Leroy (CS GROUP), David Gow, Jinjie Ruan, J.
Neuschäfer, Linus Walleij, Mahesh Salgaonkar, Mukesh Kumar Chaurasiya (IBM),
Ritesh Harjani (IBM), Saket Kumar Bhaskar, Samir M, Sayali Patil, Shirisha G,
Shivang Upadhyay, Shrikanth Hegde, Sourabh Jain, Thorsten Blum, Venkat Rao
Bagalkote, Yury Norov,
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Merge tag 'powerpc-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- Enable GENERIC_ENTRY feature
- Add missing property in DTS for mpc83xx platform
- Enable building of DTB based on platfrom Kconfig
- Add powerpc64 JIT support for timed may_goto
- Add timeout to RTAS busy-wait loops
- Simplify cpumask api usage for cpuinfo display
- implement get_direction() in cpm1 (8xx platform)
- MAINTAINERS file update for power VMX AES entries
- Fixes to handle preempt count
- Restore KUAP registers on syscall restart exit
- define MIN_RMA in bytes rather than MB
- misc fixes and cleanups
Thanks to Aboorva Devarajan, Adriano Vero, Amit Machhiwal, Anushree
Mathur, Bartosz Golaszewski, Christophe Leroy (CS GROUP), David Gow,
Jinjie Ruan, J. Neuschäfer, Linus Walleij, Mahesh Salgaonkar, Mukesh
Kumar Chaurasiya (IBM), Ritesh Harjani (IBM), Saket Kumar Bhaskar,
Samir M, Sayali Patil, Shirisha G, Shivang Upadhyay, Shrikanth Hegde,
Sourabh Jain, Thorsten Blum, Venkat Rao Bagalkote, and Yury Norov.
* tag 'powerpc-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (32 commits)
powerpc/fadump: define MIN_RMA in bytes rather than MB
powerpc: Restore KUAP registers on syscall restart exit
powerpc/kexec: fix double get_cpu() imbalance in kexec_prepare_cpus
powerpc/powernv: fix preempt count leak in pnv_kexec_wait_secondaries_down
powerpc/perf: fix preempt count underflow in fsl_emb_pmu_del
powerpc/boot: Allow text relocations for pseries wrapper with binutils 2.46+
powerpc: Simplify access_ok()
powerpc/entry: Disable interrupts before irqentry_exit
powerpc/8xx: implement get_direction() in cpm1
powerpc/pseries/lparcfg: Replace deprecated strcpy in parse_system_parameter_string
powerpc: Fix indentation and replace typedef with struct name
powerpc/rtas: Replace one-element array with flexible array member
powerpc: use sysfs_emit{_at} in sysfs show functions
MAINTAINERS: powerpc: update VMX AES entries
ppc/fadump: invoke kmsg_dump in fadump panic path
powerpc/xive: Add warning if target CPU not found
powerpc/perf: Use cpumask_intersects api for checking disable path
powerpc: Simplify cpumask api usage for cpuinfo display
powerpc: Use cpumask_next_wrap instead
powerpc/fadump: Add timeout to RTAS busy-wait loops
...
|
||
|
Linus Torvalds
|
f32a375ecc |
RISC-V updates for v7.2
- Prevent get_free_mem_region() from returning regions that are
unmappable in certain circumstances by defining
DIRECT_MAP_PHYSMEM_END for RISC-V
- Fix an early boot problem with kexec_file when the amount of
installed physical memory installed on the system exceeds the direct
map size, which is possible in certain RISC-V virtual memory modes
- Unconditionally sfence.vma in the new vmalloc area handling code in
the page fault handler, since even the presence of Svvptc doesn't
guarantee that the CPU won't immediately fault again after the
exception handler completes and subsequently crash
- Fix ftrace_graph_ret_addr() to use the correct task pointer
(aligning with what other architectures do)
- Fix the misaligned access performance checking code in cases when
performance is specified on the kernel command line and when CPUs
have been brought offline and back online
- Get rid of a bogus address offset in the non-frame-pointer version
of walk_stackframe(), aligning it with the frame pointer-based code
- Fix a RISC-V kfence issue causing bogus use-after-free warnings
- Add ARCH_HAS_CC_CAN_LINK for RISC-V, which needs different compiler
command line flags than other architectures
- Implement _THIS_IP_ using RISC-V-specific assembly, which seems to
be less brittle (from a compiler point of view) than taking the
address of a label
- Reduce kernel startup overhead by defining
HAVE_BUILDTIME_MCOUNT_SORT, since arch/riscv meets all the
requirements
- Patch the CFI vDSO during alternatives processing, not only the
standard vDSO
- Fix a potential memory leak in the cacheinfo code
- Clean up kernel/setup.c:add_resource() to pass along the return
value from insert_resource() and to improve the display of
resource ranges
- Clean up our purgatory.[ch] by aligning our purgatory() prototype
to what's in arch/x86, and by cleaning up verify_sha256_digest()
- Clean up cpu_is_stopped() to align its function a little more
closely to its name
- Replace some unbounded string function usage in get_early_cmdline()
and the ptdump code with strscpy()
- Replace sprintf() with sysfs_emit() in cpu_show_ghostwrite() for
safer bounds checking
- Standardize how compiler output flags are specified in the RISC-V
kselftests, aligning them with what other architectures do
- Use the Linux-generic cmp_int() macro in place of an open-coded
"cmp_3way()" macro in kernel/module-sections.c
- Panic early in boot if IRQ handler stacks can't be allocated rather
than pretending to continue normally
- Add support for Eswin SoCs in the RISC-V defconfig
- Remove some unnecessary conditionals in sbi_hsm_hart_{start,stop}()
- Clean up some Kconfig infelicities found by Kconfirm
- Replace an open-coded version of min() in the kexec_elf code with
the standard min() function
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Merge tag 'riscv-for-linus-7.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
- Prevent get_free_mem_region() from returning regions that are
unmappable in certain circumstances by defining
DIRECT_MAP_PHYSMEM_END for RISC-V
- Fix an early boot problem with kexec_file when the amount of
installed physical memory installed on the system exceeds the direct
map size, which is possible in certain RISC-V virtual memory modes
- Unconditionally sfence.vma in the new vmalloc area handling code in
the page fault handler, since even the presence of Svvptc doesn't
guarantee that the CPU won't immediately fault again after the
exception handler completes and subsequently crash
- Fix ftrace_graph_ret_addr() to use the correct task pointer (aligning
with what other architectures do)
- Fix the misaligned access performance checking code in cases when
performance is specified on the kernel command line and when CPUs
have been brought offline and back online
- Get rid of a bogus address offset in the non-frame-pointer version of
walk_stackframe(), aligning it with the frame pointer-based code
- Fix a RISC-V kfence issue causing bogus use-after-free warnings
- Add ARCH_HAS_CC_CAN_LINK for RISC-V, which needs different compiler
command line flags than other architectures
- Implement _THIS_IP_ using RISC-V-specific assembly, which seems to be
less brittle (from a compiler point of view) than taking the address
of a label
- Reduce kernel startup overhead by defining
HAVE_BUILDTIME_MCOUNT_SORT, since arch/riscv meets all the
requirements
- Patch the CFI vDSO during alternatives processing, not only the
standard vDSO
- Fix a potential memory leak in the cacheinfo code
- Clean up kernel/setup.c:add_resource() to pass along the return value
from insert_resource() and to improve the display of resource ranges
- Clean up our purgatory.[ch] by aligning our purgatory() prototype to
what's in arch/x86, and by cleaning up verify_sha256_digest()
- Clean up cpu_is_stopped() to align its function a little more closely
to its name
- Replace some unbounded string function usage in get_early_cmdline()
and the ptdump code with strscpy()
- Replace sprintf() with sysfs_emit() in cpu_show_ghostwrite() for
safer bounds checking
- Standardize how compiler output flags are specified in the RISC-V
kselftests, aligning them with what other architectures do
- Use the Linux-generic cmp_int() macro in place of an open-coded
"cmp_3way()" macro in kernel/module-sections.c
- Panic early in boot if IRQ handler stacks can't be allocated rather
than pretending to continue normally
- Add support for Eswin SoCs in the RISC-V defconfig
- Remove some unnecessary conditionals in sbi_hsm_hart_{start,stop}()
- Clean up some Kconfig infelicities found by Kconfirm
- Replace an open-coded version of min() in the kexec_elf code with
the standard min() function
* tag 'riscv-for-linus-7.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits)
riscv: traps_misaligned: Avoid redundant unaligned access speed probe
riscv: misaligned: Fix fast_unaligned_access_speed_key init
riscv: also select ARCH_KEEP_MEMBLOCK if kexec is selected
riscv: alternative: Also patch the CFI vDSO
riscv: alternative: Pass vDSO start as parameter to apply_vdso_alternatives()
riscv: alternative: Use IS_ENABLED() over ifdeffery for apply_vdso_alternatives()
riscv: vdso: Always declare vdso_start symbols
riscv: kexec: use min to simplify riscv_kexec_elf_load
riscv: panic if IRQ handler stacks cannot be allocated
riscv: mm: Unconditionally sfence.vma for spurious fault
riscv: mm: Use the bitmap API for new_valid_map_cpus
riscv: mm: Rename new_vmalloc into new_valid_map_cpus
riscv: kfence: Call mark_new_valid_map() for kfence_unprotect()
riscv: mm: Extract helper mark_new_valid_map()
riscv: stacktrace: Remove bogus -0x4 offset in non-FP walk_stackframe
riscv: cacheinfo: Fix node reference leak in populate_cache_leaves
riscv: kexec_file: Constrain segment placement to direct map
riscv: mm: Define DIRECT_MAP_PHYSMEM_END
riscv: defconfig: Enable Eswin SoCs
riscv: cpu_ops_sbi: No need to be bothered to check ret.error
...
|
||
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Linus Torvalds
|
9ecfb2f728 |
ring-buffer: Updates for v7.2:
- Do not invalidate entire buffer for invalid sub-buffers For the persistent ring buffer, if one sub-buffer is found to be invalid, it invalidates the entire per CPU ring buffer. This can lose a lot of valuable data if there's some corruption with the writes to the buffer not syncing properly on a hard crash. Instead, if a sub-buffer is found to be invalid, simply zero it out and mark it for "missed events". When the persistent ring buffer is read and a sub-buffer that was cleared due to being invalid on boot up is discovered, the output will show "[LOST EVENTS]" to let the user know that events were missing at that location. Displaying the events from valid buffers can still be useful. - Add a test to be able to test corrupted sub-buffers If a persistent ring buffer is created as "ptraingtest" and the new config that adds the test is enabled, when a panic happens, the kernel will randomly corrupt one of the per CPU ring buffers. On boot up, the sub-buffers with the corruption should be cleared and flagged. When reading this buffer, the missed events should should [LOST EVENTS]. - Add commit number in the sub-buffer meta debug info The commit is used to know the content of a meta page. Add it to the buffer_meta file that is shown for each per CPU buffer. - Clean up the persistent ring buffer validation code Add some helper functions and make variable names more consistent. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCajMDZBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qhDLAP4i0b8HP159LOEy/IiQKZ7hfAaUhTK8 imMVS6V1bVKTjgD8Dy/f9m8259ZIcgN9mjSKXlT30qAeGmhjjDCdc0TnagM= =mokF -----END PGP SIGNATURE----- Merge tag 'trace-ring-buffer-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ring-buffer updates from Steven Rostedt - Do not invalidate entire buffer for invalid sub-buffers For the persistent ring buffer, if one sub-buffer is found to be invalid, it invalidates the entire per CPU ring buffer. This can lose a lot of valuable data if there's some corruption with the writes to the buffer not syncing properly on a hard crash. Instead, if a sub-buffer is found to be invalid, simply zero it out and mark it for "missed events". When the persistent ring buffer is read and a sub-buffer that was cleared due to being invalid on boot up is discovered, the output will show "[LOST EVENTS]" to let the user know that events were missing at that location. Displaying the events from valid buffers can still be useful. - Add a test to be able to test corrupted sub-buffers If a persistent ring buffer is created as "ptraingtest" and the new config that adds the test is enabled, when a panic happens, the kernel will randomly corrupt one of the per CPU ring buffers. On boot up, the sub-buffers with the corruption should be cleared and flagged. When reading this buffer, the missed events should should [LOST EVENTS]. - Add commit number in the sub-buffer meta debug info The commit is used to know the content of a meta page. Add it to the buffer_meta file that is shown for each per CPU buffer. - Clean up the persistent ring buffer validation code Add some helper functions and make variable names more consistent. * tag 'trace-ring-buffer-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Better comment the use of RB_MISSED_EVENTS ring-buffer: Show persistent buffer dropped events in trace_pipe file ring-buffer: Show persistent buffer dropped events in trace file ring-buffer: Have dropped subbuffers be persistent across reboots ring-buffer: Cleanup buffer_data_page related code ring-buffer: Cleanup persistent ring buffer validation ring-buffer: Show commit numbers in buffer_meta file ring-buffer: Add persistent ring buffer invalid-page inject test ring-buffer: Skip invalid sub-buffers when rewinding persistent ring buffer ring-buffer: Skip invalid sub-buffers when validating persistent ring buffer |
||
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Linus Torvalds
|
23b5d045ae |
tracing: Updates for v7.2:
- Remove a redundant IS_ERR() check trace_pipe_open() already checks for IS_ERR() and does it again in the return path. Remove the return check. - Export seq_buf_putmem_hex() to allow kunit tests against them To add Kunit tests on seq_buf_putmem_hex(), it needs to be exported. - Replace strcat() and strcpy() with seq_buf() logic The code for synthetic events uses a series of strcat() and strcpy() which can be error prone. Replace them with seq_buf() logic that does all the necessary bound checking. - Add a lockdep rcu_is_watching() to trace_##event##_enabled() call The trace_##event##_enabled() is a static branch that is true if the "event" is enabled. But this can hide bugs if this logic is in a location where RCU is disabled and not "watching". It would only trigger if lockdep is enabled and the event is enabled. Add a "rcu_is_watching()" warning if lockdep is enabled in that helper function to trigger regardless if the event is enabled or not. - Remove the local variable in the trace_printk() macro For name space integrity, remove the _______STR variable in the trace_printk() macro for using the sizeof() macro directly. - Use guard()s for the trace_recursion_record.c file - Fix typo in a comment of eventfs_callback() kerneldoc - Use trace_call__##event() in events called within trace_##event##_enabled() A couple of events are called within an if block guarded by trace_##event##_enabled(). That is a static key that is only enabled when the event is enabled. The trace_call_##event() calls the tracepoint code directly without adding a redundant static key for that check. - Allow perf to read synthetic events Currently, perf does not have the ability to enable a synthetic event. If it does, it will either cause a kernel warning or error with "No such device". Synthetic events are not much different than kprobes and perf can handle fine with a few modifications. - Replace printk(KERN_WARNING ...) with pr_warn() - Replace krealloc() on an array with krealloc_array() - Fix README file path name for synthetic events - Change tracing_map tracing_map_array to use a flexible array Instead of allocating a separate pointer to hold the pages field of tracing_map_array, allocate the pages field as a flexible array when allocating the structure. - Fold trace_iterator_increment() into trace_find_next_entry_inc() The function trace_iterator_increment() was only used by trace_find_next_entry_inc(). It's not big enough to be a helper function for one user. Fold it into its caller. - Make field_var_str field a flexible array of hist_elt_data Instead of allocating a separate pointer for the field_var_str array of the hist_elt_data structure, allocate it as a flexible array when allocating the structure. - Disable KCOV for trace_irqsoff.c Like trace_preemptirq.c, trace_irqsoff.c has code that will crash when KCOV is enabled on ARM. The irqsoff tracing can be called on ARM because the irqsoff tracing code can be run from early interrupt code and produce coverage unrelated to syscall inputs. - Fix warning in __unregister_ftrace_function() called by perf Perf calls unregister_ftrace_function() without checking if its ftrace_ops has already been unregistered. There's an error path where on clean up it will unregister the ftrace_ops even if it wasn't registered and causes a warning. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCajHGbRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qqP/AP4nv/Tmv6T7vxMzL7dY/WJ0xT2xkW7Z tlejy1AM/RBaTAEAkkgdDNhIAJwxCxsmY6/Zr1mRWzaF7O4kX94KYFcBHww= =7nyZ -----END PGP SIGNATURE----- Merge tag 'trace-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Remove a redundant IS_ERR() check trace_pipe_open() already checks for IS_ERR() and does it again in the return path. Remove the return check. - Export seq_buf_putmem_hex() to allow kunit tests against them To add Kunit tests on seq_buf_putmem_hex(), it needs to be exported. - Replace strcat() and strcpy() with seq_buf() logic The code for synthetic events uses a series of strcat() and strcpy() which can be error prone. Replace them with seq_buf() logic that does all the necessary bound checking. - Add a lockdep rcu_is_watching() to trace_##event##_enabled() call The trace_##event##_enabled() is a static branch that is true if the "event" is enabled. But this can hide bugs if this logic is in a location where RCU is disabled and not "watching". It would only trigger if lockdep is enabled and the event is enabled. Add a "rcu_is_watching()" warning if lockdep is enabled in that helper function to trigger regardless if the event is enabled or not. - Remove the local variable in the trace_printk() macro For name space integrity, remove the _______STR variable in the trace_printk() macro for using the sizeof() macro directly. - Use guard()s for the trace_recursion_record.c file - Fix typo in a comment of eventfs_callback() kerneldoc - Use trace_call__##event() in events within trace_##event##_enabled() A couple of events are called within an if block guarded by trace_##event##_enabled(). That is a static key that is only enabled when the event is enabled. The trace_call_##event() calls the tracepoint code directly without adding a redundant static key for that check. - Allow perf to read synthetic events Currently, perf does not have the ability to enable a synthetic event. If it does, it will either cause a kernel warning or error with "No such device". Synthetic events are not much different than kprobes and perf can handle fine with a few modifications. - Replace printk(KERN_WARNING ...) with pr_warn() - Replace krealloc() on an array with krealloc_array() - Fix README file path name for synthetic events - Change tracing_map tracing_map_array to use a flexible array Instead of allocating a separate pointer to hold the pages field of tracing_map_array, allocate the pages field as a flexible array when allocating the structure. - Fold trace_iterator_increment() into trace_find_next_entry_inc() The function trace_iterator_increment() was only used by trace_find_next_entry_inc(). It's not big enough to be a helper function for one user. Fold it into its caller. - Make field_var_str field a flexible array of hist_elt_data Instead of allocating a separate pointer for the field_var_str array of the hist_elt_data structure, allocate it as a flexible array when allocating the structure. - Disable KCOV for trace_irqsoff.c Like trace_preemptirq.c, trace_irqsoff.c has code that will crash when KCOV is enabled on ARM. The irqsoff tracing can be called on ARM because the irqsoff tracing code can be run from early interrupt code and produce coverage unrelated to syscall inputs. - Fix warning in __unregister_ftrace_function() called by perf Perf calls unregister_ftrace_function() without checking if its ftrace_ops has already been unregistered. There's an error path where on clean up it will unregister the ftrace_ops even if it wasn't registered and causes a warning. * tag 'trace-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: perf/ftrace: Fix WARNING in __unregister_ftrace_function tracing: Disable KCOV instrumentation for trace_irqsoff.o tracing: Turn hist_elt_data field_var_str into a flexible array tracing: Move trace_iterator_increment() into trace_find_next_entry_inc() tracing: Simplify pages allocation for tracing_map logic tracing: Fix README path for synthetic_events tracing: Use krealloc_array() for trace option array growth tracing/branch: Use pr_warn() instead of printk(KERN_WARNING) tracing: Allow perf to read synthetic events HID: Use trace_call__##name() at guarded tracepoint call sites cpufreq: amd-pstate: Use trace_call__##name() at guarded tracepoint call site tracefs: Fix typo in a comment of eventfs_callback() kerneldoc tracing: Switch trace_recursion_record.c code over to use guard() tracing: Remove local variable for argument detection from trace_printk() tracepoint: Add lockdep rcu_is_watching() check to trace_##name##_enabled() tracing: Bound synthetic-field strings with seq_buf seq_buf: Export seq_buf_putmem_hex() and add KUnit tests tracing: Remove redundant IS_ERR() check in trace_pipe_open() |
||
|
Linus Torvalds
|
8c13415c8a |
[GIT PULL for v7.2] media updates
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Merge tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- v4l2:
- core: fix subdev sensor ownership
- subdev: Allow accessing routes with STREAMS client capability
- ctrls: Add validation for HEVC active reference counts and
background detection control
- common: Add YUV24 format info and has_alpha helper
- vb2: Change vb2_read() and vb2_write() return types to ssize_t
- i2c: cvs: Add driver of Intel Computer Vision Sensing Controller(CVS)
- atmel-isc: remove deprecated driver
- cec: Add CEC Latency Indication Protocol (LIP) support
- imon: Add iMON VFD HID OEM v1.2 key mappings
- AVMatrix: new HWS capture driver
- isp4: new AMD capture driver
- qcom:
- iris: Add hierarchical coding, B-frame, and Long-Term Reference
support for encoder
- camss: Add SM6350 platform support
- venus: Add SM6115 platform support
- chips-media: wave5: Add support for Packed YUV422, CBP profile, and
background detection
- csi2rx: Add multistream support and 32 dma chans
- Several cleanups and fixes
* tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits)
media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
media: qcom: iris: vdec: allow GEN2 decoding into 10bit format
media: qcom: iris: vdec: update find_format to handle 8bit and 10bit formats
media: qcom: iris: vdec: update size and stride calculations for 10bit formats
media: qcom: iris: gen2: add support for 10bit decoding
media: qcom: iris: add QC10C & P010 buffer size calculations
media: qcom: iris: add helpers for 8bit and 10bit formats
media: qcom: iris: Fix FPS calculation and VPP FW overhead
media: qcom: camss: vfe-340: Support for PIX client
media: qcom: camss: vfe-340: Proper client handling
media: qcom: camss: csid-340: Enable PIX interface routing
media: qcom: camss: csid-340: Add port-to-interface mapping
media: qcom: camss: csid-340: Switch to generic CSID_CFG/CTRL registers
media: iris: Initialize HFI ops after firmware load in core init
media: iris: drop struct iris_fmt
media: iris: Add platform data for X1P42100
media: iris: Add hardware power on/off ops for X1P42100
media: iris: optimize COMV buffer allocation for VPU3x and VPU4x
media: iris: add FPS calculation and VPP FW overhead in frequency formula
media: qcom: iris: Simplify COMV size calculation
...
|
||
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Kees Cook
|
079a028d63 |
string: Remove strncpy() from the kernel
strncpy() has been a persistent source of bugs due to its ambiguous intended usage and frequently counter-intuitive semantics: it may not NUL-terminate the destination, and it unconditionally zero-pads to the full length, which isn't always needed. All former callers have been migrated[1] to: - strscpy() for NUL-terminated destinations - strscpy_pad() for NUL-terminated destinations needing zero-padding - strtomem_pad() for non-NUL-terminated fixed-width fields - memcpy_and_pad() for bounded copies with explicit padding - memcpy() for known-length copies Remove the generic implementation, its declaration, the FORTIFY_SOURCE wrapper, and associated tests. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |
||
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Linus Torvalds
|
5cd1731cc8 |
CXL changes for v7.2
Introduce devm_cxl_probe_mem(), in prep for type2 basic enabling: cxl: Add dummy function for cxl_memdev_attach_region for !CONFIG_CXL_REGION cxl/region: Introduce devm_cxl_probe_mem() cxl/memdev: Introduce cxl_class_memdev_type cxl/memdev: Pin parents for entire memdev lifetime cxl/region: Resolve region deletion races cxl/region: Block region delete during region creation CXL Misc: cxl/region: Fill first free targets[] slot during auto-discovery cxl/region: Fix out-of-bounds access in cxl_cancel_auto_attach() tools/testing/cxl: Resolve auto-region decoder targets like real HW cxl: Align interleave decode/encode helpers with their callers cxl/test: Add check after kzalloc() memory in alloc_mock_res() cxl/test: Unregister cxl_acpi in cxl_test_init() error path cxl/test: Zero out LSA backing memory to avoid leaking to user cxl/test: Fix integer overflow in mock LSA bounds checks cxl/test: Verify cmd->size_in before accessing payload cxl/port: update reference to removed CONFIG_PROVE_CXL_LOCKING cxl/region: Avoid variable shadowing in region attach paths cxl: Fix CXL_HEADERLOG_SIZE to match RAS Capability size cxl/test: Fix __fortify_panic cxl/fwctl: Fix __fortify_panic MAINTAINERS: Add CXL reviewer cxl/test: Enforce PMD alignment for volatile mock regions cxl/region: Validate partition index before array access cxl/memdev: Hold memdev lock during memdev poison injection/clear CXL PCI fixes: cxl/pci: Convert PCIBIOS errors to errno on DVSEC config accesses cxl/pci: Fix the incorrect check of pci_read_config_word() return -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5DAy15EJMCV1R6v9YGjFFmlTOEoFAmo0MqsACgkQYGjFFmlT OEp5qQ/+N//u4DqTq54P7ZV1jpVzMEchV411frsWF5wl/pvEz9cr/ruPNxpg6Gdz AtryU1hcXRrDu9hvmO3odDM7jdZsIcF8GbpAWy5blAZaRt37aU6A4+fsFb8apFst SoFQ9BV23clPAEM7TYKXgya+G4kFu+btf3uxIutc8R78e88aEHGDz/Si//cocLmo sZY5Qky5eGca7wtX5rEImJtwsKDcTrtTQKQYGcuV6swLtLuJsHgL86TEfrWAH36M Vugb83a9AhQnGaTtKhvViHZkbMTOjCfOZom9BS++YDl/hVSPU1kF184ZPAI9oi4y 0kKDyoKbTN+oEIhrmhC4SGi0UgIW2O4Y6zR7lgr2iYm08Ki9ehbOI5EX6+PTVMSH lzLVunyLY/AAU9wrQ4YENYuZgfdUXpOgUzseCVIhN4kVo0oWhnUPHVRj2m2fZ7oH JzQV1MP2YJEbfqtAFVndBBZhBjrMZMcJCHhdISvz0Axv9ezj02LYJPVgmnGDthX7 kKvPgK7u/3sShAk2qmh1csFlT3H+UH1lpPcGM6btOjpI9TNIsYnyH/VaoHt4CIVL LZpMwQEMbz7S+An1+Ckwehe7LZAXO4IMUVFSdx6pAIRILNBv+68QkFtg2Ok5v/4s 7p5WPOvS97tTf6z5G/dQkDkGQVg1rdCfrQNN/MrZK4bEvMoQ5DM= =CimP -----END PGP SIGNATURE----- Merge tag 'cxl-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull CXL updates from Dave Jiang: "A collection of CXL fixes and changes, including an update to MAINTAINERS to add Ming Li as a CXL subsystem reviewer. There's also a series to introduce devm_cxl_probe_mem() core API in order to pave the way for CXL type2 device drivers to setup and retrieve CXL region resource during probe" * tag 'cxl-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (26 commits) cxl: Add dummy function for cxl_memdev_attach_region for !CONFIG_CXL_REGION cxl/region: Introduce devm_cxl_probe_mem() cxl/memdev: Introduce cxl_class_memdev_type cxl/memdev: Pin parents for entire memdev lifetime cxl/region: Resolve region deletion races cxl/region: Block region delete during region creation cxl/region: Fill first free targets[] slot during auto-discovery cxl/region: Fix out-of-bounds access in cxl_cancel_auto_attach() tools/testing/cxl: Resolve auto-region decoder targets like real HW cxl: Align interleave decode/encode helpers with their callers cxl/test: Add check after kzalloc() memory in alloc_mock_res() cxl/test: Unregister cxl_acpi in cxl_test_init() error path cxl/test: Zero out LSA backing memory to avoid leaking to user cxl/test: Fix integer overflow in mock LSA bounds checks cxl/test: Verify cmd->size_in before accessing payload cxl/port: update reference to removed CONFIG_PROVE_CXL_LOCKING cxl/region: Avoid variable shadowing in region attach paths cxl: Fix CXL_HEADERLOG_SIZE to match RAS Capability size cxl/pci: Convert PCIBIOS errors to errno on DVSEC config accesses cxl/pci: Fix the incorrect check of pci_read_config_word() return ... |
||
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Kees Cook
|
58c4ce8cd6 |
xtensa: Remove arch-specific strncpy() implementation
strncpy() has no remaining callers in the kernel[1]. Remove the xtensa-specific inline assembly implementation and __HAVE_ARCH_STRNCPY define, falling back to the generic version in lib/string.c. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |
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Kees Cook
|
dfe05fcca8 |
x86: Remove arch-specific strncpy() implementation
strncpy() has no remaining callers in the kernel[1]. Remove the x86-32-specific inline assembly implementation and __HAVE_ARCH_STRNCPY define, falling back to the generic version in lib/string.c. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |
||
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Kees Cook
|
7eda356658 |
powerpc: Remove arch-specific strncpy() implementation
strncpy() has no remaining callers in the kernel[1]. Remove the powerpc-specific assembly implementation from both the kernel (arch/powerpc/lib/string.S) and the boot wrapper (arch/powerpc/boot/string.S), along with the __HAVE_ARCH_STRNCPY define and declaration, falling back to the generic version in lib/string.c. The boot wrapper's strncpy had no callers in arch/powerpc/boot/. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |
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Kees Cook
|
ad3242a9ac |
m68k: Remove arch-specific strncpy() implementation
strncpy() has no remaining callers in the kernel[1]. Remove the m68k-specific inline assembly implementation and __HAVE_ARCH_STRNCPY define, falling back to the generic version in lib/string.c. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |
||
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Kees Cook
|
4cb5e246e6 |
alpha: Remove arch-specific strncpy() implementation
strncpy() has no remaining callers in the kernel[1]. Remove the alpha-specific assembly implementation and __HAVE_ARCH_STRNCPY define, falling back to the generic version in lib/string.c. The __stxncpy helper (stxncpy.S/ev6-stxncpy.S) is retained as it is still used by strncat. Link: https://github.com/KSPP/linux/issues/90 [1] Signed-off-by: Kees Cook <kees@kernel.org> |