Commit Graph

1381365 Commits

Author SHA1 Message Date
Corey Minyard
753bc23d8f ipmi:si: Merge some if statements
Changes resulted in a silly looking piece of logic.  Get rid of a goto
and use if statements properly.

Signed-off-by: Corey Minyard <corey@minyard.net>
2025-09-08 10:21:41 -05:00
Corey Minyard
bbfb8353cb ipmi: Set a timer for maintenance mode
Now that maintenance mode rejects all messages, there's nothing to
run time timer.  Make sure the timer is running in maintenance mode.

Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Frederick Lawler <fred@cloudflare.com>
2025-09-08 10:21:41 -05:00
Corey Minyard
627118470f ipmi: Add a maintenance mode sysfs file
So you can see if it's in maintenance mode and see how long is left.

Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Frederick Lawler <fred@cloudflare.com>
2025-09-08 10:21:41 -05:00
Corey Minyard
30f6c9d545 ipmi: Disable sysfs access and requests in maintenance mode
If the driver goes into any maintenance mode, disable sysfs access until
it is done.

If the driver goes into reset maintenance mode, disable all messages
until it is done.

Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Frederick Lawler <fred@cloudflare.com>
2025-09-08 10:21:41 -05:00
Corey Minyard
e5feb030d9 ipmi: Differentiate between reset and firmware update in maintenance
This allows later changes to have different behaviour during a reset
verses a firmware update.

Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Frederick Lawler <fred@cloudflare.com>
2025-09-08 10:21:40 -05:00
Rob Herring (Arm)
121f4a7e47 dt-bindings: ipmi: aspeed,ast2400-kcs-bmc: Add missing "clocks" property
The ASpeed kcs-bmc nodes have a "clocks" property which isn't
documented. It looks like all the LPC child devices have the same clock
source and some of the drivers manage their clock. Perhaps it is the
parent device that should have the clock, but it's too late for that.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <20250807132852.3291305-1-robh@kernel.org>
Signed-off-by: Corey Minyard <corey@minyard.net>
2025-09-08 10:21:40 -05:00
Corey Minyard
b52da4054e ipmi: Rework user message limit handling
The limit on the number of user messages had a number of issues,
improper counting in some cases and a use after free.

Restructure how this is all done to handle more in the receive message
allocation routine, so all refcouting and user message limit counts
are done in that routine.  It's a lot cleaner and safer.

Reported-by: Gilles BULOZ <gilles.buloz@kontron.com>
Closes: https://lore.kernel.org/lkml/aLsw6G0GyqfpKs2S@mail.minyard.net/
Fixes: 8e76741c3d ("ipmi: Add a limit on the number of users that may use IPMI")
Cc: <stable@vger.kernel.org> # 4.19
Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Gilles BULOZ <gilles.buloz@kontron.com>
2025-09-08 10:21:28 -05:00
Corey Minyard
5d09ee1bec Revert "ipmi: fix msg stack when IPMI is disconnected"
This reverts commit c608966f3f.

This patch has a subtle bug that can cause the IPMI driver to go into an
infinite loop if the BMC misbehaves in a certain way.  Apparently
certain BMCs do misbehave this way because several reports have come in
recently about this.

Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Eric Hagberg <ehagberg@janestreet.com>
Cc: <stable@vger.kernel.org> # 6.2
2025-09-08 10:08:25 -05:00
Corey Minyard
8fd8ea2869 ipmi:msghandler:Change seq_lock to a mutex
Dan Carpenter got a Smatch warning:

	drivers/char/ipmi/ipmi_msghandler.c:5265 ipmi_free_recv_msg()
	warn: sleeping in atomic context

due to the recent rework of the IPMI driver's locking.  I didn't realize
vfree could block.  But there is an easy solution to this, now that
almost everything in the message handler runs in thread context.

I wanted to spend the time earlier to see if seq_lock could be converted
from a spinlock to a mutex, but I wanted the previous changes to go in
and soak before I did that.  So I went ahead and did the analysis and
converting should work.  And solve this problem.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202503240244.LR7pOwyr-lkp@intel.com/
Fixes: 3be997d5a6 ("ipmi:msghandler: Remove srcu from the ipmi user structure")
Cc: <stable@vger.kernel.org> # 6.16
Signed-off-by: Corey Minyard <corey@minyard.net>
2025-09-08 10:08:14 -05:00
Linus Torvalds
6e64f45803 Input updates for v6.17-rc0
- updates to several drivers consuming GPIO APIs to use setters
   returning error codes
 
 - an infrastructure allowing to define "overlays" for touchscreens
   carving out regions implementing buttons and other elements from a
   bigger sensors and a corresponding update to st1232 driver
 
 - an update to AT/PS2 keyboard driver to map F13-F24 by default
 
 - Samsung keypad driver got a facelift
 
 - evdev input handler will now bind to all devices using EV_SYN event
   instead of abusing id->driver_info
 
 - 2 new sub-drivers implementing 1A (capacitive buttons) and 21
   (forcepad button) functions in Synaptics RMI driver
 
 - support for polling mode in Goodix touchscreen driver
 
 - support for support for FocalTech FT8716 in edt-ft5x06 driver
 
 - support for MT6359 in mtk-pmic-keys driver
 
 - removal of pcf50633-input driver since platform it was used on is gone
 
 - new definitions for game controller "grip" buttons (BTN_GRIP*) and
   corresponding changes to xpad and hid-steam controller drivers
 
 - a new definition for "performance" key
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Merge tag 'input-for-v6.17-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:

 - updates to several drivers consuming GPIO APIs to use setters
   returning error codes

 - an infrastructure allowing to define "overlays" for touchscreens
   carving out regions implementing buttons and other elements from a
   bigger sensors and a corresponding update to st1232 driver

 - an update to AT/PS2 keyboard driver to map F13-F24 by default

 - Samsung keypad driver got a facelift

 - evdev input handler will now bind to all devices using EV_SYN event
   instead of abusing id->driver_info

 - two new sub-drivers implementing 1A (capacitive buttons) and 21
   (forcepad button) functions in Synaptics RMI driver

 - support for polling mode in Goodix touchscreen driver

 - support for support for FocalTech FT8716 in edt-ft5x06 driver

 - support for MT6359 in mtk-pmic-keys driver

 - removal of pcf50633-input driver since platform it was used on is
   gone

 - new definitions for game controller "grip" buttons (BTN_GRIP*) and
   corresponding changes to xpad and hid-steam controller drivers

 - a new definition for "performance" key

* tag 'input-for-v6.17-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (38 commits)
  HID: hid-steam: Use new BTN_GRIP* buttons
  Input: add keycode for performance mode key
  Input: max77693 - convert to atomic pwm operation
  Input: st1232 - add touch-overlay handling
  dt-bindings: input: touchscreen: st1232: add touch-overlay example
  Input: touch-overlay - add touchscreen overlay handling
  dt-bindings: touchscreen: add touch-overlay property
  Input: atkbd - correctly map F13 - F24
  Input: xpad - use new BTN_GRIP* buttons
  Input: Add and document BTN_GRIP*
  Input: xpad - change buttons the D-Pad gets mapped as to BTN_DPAD_*
  Documentation: Fix capitalization of XBox -> Xbox
  Input: synaptics-rmi4 - add support for F1A
  dt-bindings: input: syna,rmi4: Document F1A function
  Input: synaptics-rmi4 - add support for Forcepads (F21)
  Input: mtk-pmic-keys - add support for MT6359 PMIC keys
  Input: remove special handling of id->driver_info when matching
  Input: evdev - switch matching to EV_SYN
  Input: samsung-keypad - use BIT() and GENMASK() where appropriate
  Input: samsung-keypad - use per-chip parameters
  ...
2025-08-07 07:40:01 +03:00
Linus Torvalds
d244f9bb59 Some small fixes for the IPMI driver
Nothing huge, some rate limiting on logs, a strncpy fix where the source
 and destination could be the same, and removal of some unused cruft.
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Merge tag 'for-linus-6.17-1' of https://github.com/cminyard/linux-ipmi

Pull ipmi updates from Corey Minyard:
 "Some small fixes for the IPMI driver

  Nothing huge, some rate limiting on logs, a strncpy fix where the
  source and destination could be the same, and removal of some unused
  cruft"

* tag 'for-linus-6.17-1' of https://github.com/cminyard/linux-ipmi:
  ipmi: Use dev_warn_ratelimited() for incorrect message warnings
  char: ipmi: remove redundant variable 'type' and check
  ipmi: Fix strcpy source and destination the same
2025-08-07 07:38:25 +03:00
Linus Torvalds
2095cf558f RDMA v6.17 merge window second pull request
Single fix to correct the iov_iter construction in soft iwarp. This avoids
 blktest crashes with recent changes to the allocators.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fix from Jason Gunthorpe:
 "Single fix to correct the iov_iter construction in soft iwarp. This
  avoids blktest crashes with recent changes to the allocators"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/siw: Fix the sendmsg byte count in siw_tcp_sendpages
2025-08-07 07:36:23 +03:00
Linus Torvalds
e8214ed59b VFIO updates for v6.17-rc1 v2
- Fix imbalance where the no-iommu/cdev device path skips too much
    on open, failing to increment a reference, but still decrements
    the reference on close.  Add bounds checking to prevent such
    underflows. (Jacob Pan)
 
  - Fill missing detach_ioas op for pds_vfio_pci, fixing probe failure
    when used with IOMMUFD. (Brett Creeley)
 
  - Split SR-IOV VFs to separate dev_set, avoiding unnecessary
    serialization between VFs that appear on the same bus.
    (Alex Williamson)
 
  - Fix a theoretical integer overflow is the mlx5-vfio-pci variant
    driver. (Artem Sadovnikov)
 
  - Implement missing VF token checking support via vfio cdev/IOMMUFD
    interface. (Jason Gunthorpe)
 
  - Update QAT vfio-pci variant driver to claim latest VF devices.
    (Małgorzata Mielnik)
 
  - Add a cond_resched() call to avoid holding the CPU too long during
    DMA mapping operations. (Keith Busch)
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Merge tag 'vfio-v6.17-rc1-v2' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Fix imbalance where the no-iommu/cdev device path skips too much on
   open, failing to increment a reference, but still decrements the
   reference on close. Add bounds checking to prevent such underflows
   (Jacob Pan)

 - Fill missing detach_ioas op for pds_vfio_pci, fixing probe failure
   when used with IOMMUFD (Brett Creeley)

 - Split SR-IOV VFs to separate dev_set, avoiding unnecessary
   serialization between VFs that appear on the same bus (Alex
   Williamson)

 - Fix a theoretical integer overflow is the mlx5-vfio-pci variant
   driver (Artem Sadovnikov)

 - Implement missing VF token checking support via vfio cdev/IOMMUFD
   interface (Jason Gunthorpe)

 - Update QAT vfio-pci variant driver to claim latest VF devices
   (Małgorzata Mielnik)

 - Add a cond_resched() call to avoid holding the CPU too long during
   DMA mapping operations (Keith Busch)

* tag 'vfio-v6.17-rc1-v2' of https://github.com/awilliam/linux-vfio:
  vfio/type1: conditional rescheduling while pinning
  vfio/qat: add support for intel QAT 6xxx virtual functions
  vfio/qat: Remove myself from VFIO QAT PCI driver maintainers
  vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD
  vfio/mlx5: fix possible overflow in tracking max message size
  vfio/pci: Separate SR-IOV VF dev_set
  vfio/pds: Fix missing detach_ioas op
  vfio: Prevent open_count decrement to negative
  vfio: Fix unbalanced vfio_df_close call in no-iommu mode
2025-08-07 07:32:50 +03:00
Dmitry Torokhov
ab93e0dd72 Merge branch 'next' into for-linus
Prepare input updates for 6.17 merge window.
2025-08-06 10:08:54 -07:00
Vicki Pfau
4f67c41894 HID: hid-steam: Use new BTN_GRIP* buttons
Make use of the newly defined BTN_GRIP* codes instead of using
BTN_TRIGGER_HAPPY* and other less suited button codes.

Signed-off-by: Vicki Pfau <vi@endrift.com>
Acked-by: Jiri Kosina <jkosina@suse.com>
Link: https://lore.kernel.org/r/20250717000143.1902875-4-vi@endrift.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-08-06 10:02:28 -07:00
Linus Torvalds
cca7a0aae8 for-6.17-fix-tag
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Merge tag 'for-6.17-fix-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fix from David Sterba:
 "A single btrfs commit. It fixes a problem that people started to hit
  since 6.15.3 during log replay (e.g. after a crash).

  The bug is old but got more likely to happen since commit
  5e85262e54 ("btrfs: fix fsync of files with no hard links not
  persisting deletion") got backported to stable (6.15 only)"

* tag 'for-6.17-fix-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix log tree replay failure due to file with 0 links and extents
2025-08-06 15:52:56 +03:00
Linus Torvalds
d7edcc7c91 SCSI misc on 20250806
This is mostly fixes and cleanups and code reworks that trickled in
 across the merge window and the weeks leading up.  The only
 substantive update is the Mediatek ufs driver which accounts for the
 bulk of the additions.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "This is mostly fixes and cleanups and code reworks that trickled in
  across the merge window and the weeks leading up. The only substantive
  update is the Mediatek ufs driver which accounts for the bulk of the
  additions"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (37 commits)
  scsi: libsas: Use a bool for sas_deform_port() second argument
  scsi: libsas: Move declarations of internal functions to sas_internal.h
  scsi: libsas: Make sas_get_ata_info() static
  scsi: libsas: Simplify sas_ata_wait_eh()
  scsi: libsas: Refactor dev_is_sata()
  scsi: sd: Make sd shutdown issue START STOP UNIT appropriately
  scsi: arm64: dts: mediatek: mt8195: Add UFSHCI node
  scsi: dt-bindings: mediatek,ufs: add MT8195 compatible and update clock nodes
  scsi: dt-bindings: mediatek,ufs: Add ufs-disable-mcq flag for UFS host
  scsi: ufs: ufs-mediatek: Add UFS host support for MT8195 SoC
  scsi: ufs: ufs-pci: Remove control of UIC Completion interrupt for Intel MTL
  scsi: ufs: core: Do not write interrupt enable register unnecessarily
  scsi: ufs: core: Set and clear UIC Completion interrupt as needed
  scsi: ufs: core: Remove duplicated code in ufshcd_send_bsg_uic_cmd()
  scsi: ufs: core: Move ufshcd_enable_intr() and ufshcd_disable_intr()
  scsi: ufs: ufs-pci: Remove UFS PCI driver's ->late_init() call back
  scsi: ufs: ufs-pci: Fix default runtime and system PM levels
  scsi: ufs: ufs-pci: Fix hibernate state transition for Intel MTL-like host controllers
  scsi: ufs: host: mediatek: Support FDE (AES) clock scaling
  scsi: ufs: host: mediatek: Support clock scaling with Vcore binding
  ...
2025-08-06 15:44:25 +03:00
Filipe Manana
0a32e4f002 btrfs: fix log tree replay failure due to file with 0 links and extents
If we log a new inode (not persisted in a past transaction) that has 0
links and extents, then log another inode with an higher inode number, we
end up with failing to replay the log tree with -EINVAL. The steps for
this are:

1) create new file A
2) write some data to file A
3) open an fd on file A
4) unlink file A
5) fsync file A using the previously open fd
6) create file B (has higher inode number than file A)
7) fsync file B
8) power fail before current transaction commits

Now when attempting to mount the fs, the log replay will fail with
-ENOENT at replay_one_extent() when attempting to replay the first
extent of file A. The failure comes when trying to open the inode for
file A in the subvolume tree, since it doesn't exist.

Before commit 5f61b96159 ("btrfs: fix inode lookup error handling
during log replay"), the returned error was -EIO instead of -ENOENT,
since we converted any errors when attempting to read an inode during
log replay to -EIO.

The reason for this is that the log replay procedure fails to ignore
the current inode when we are at the stage LOG_WALK_REPLAY_ALL, our
current inode has 0 links and last inode we processed in the previous
stage has a non 0 link count. In other words, the issue is that at
replay_one_extent() we only update wc->ignore_cur_inode if the current
replay stage is LOG_WALK_REPLAY_INODES.

Fix this by updating wc->ignore_cur_inode whenever we find an inode item
regardless of the current replay stage. This is a simple solution and easy
to backport, but later we can do other alternatives like avoid logging
extents or inode items other than the inode item for inodes with a link
count of 0.

The problem with the wc->ignore_cur_inode logic has been around since
commit f2d72f42d5 ("Btrfs: fix warning when replaying log after fsync
of a tmpfile") but it only became frequent to hit since the more recent
commit 5e85262e54 ("btrfs: fix fsync of files with no hard links not
persisting deletion"), because we stopped skipping inodes with a link
count of 0 when logging, while before the problem would only be triggered
if trying to replay a log tree created with an older kernel which has a
logged inode with 0 links.

A test case for fstests will be submitted soon.

Reported-by: Peter Jung <ptr1337@cachyos.org>
Link: https://lore.kernel.org/linux-btrfs/fce139db-4458-4788-bb97-c29acf6cb1df@cachyos.org/
Reported-by: burneddi <burneddi@protonmail.com>
Link: https://lore.kernel.org/linux-btrfs/lh4W-Lwc0Mbk-QvBhhQyZxf6VbM3E8VtIvU3fPIQgweP_Q1n7wtlUZQc33sYlCKYd-o6rryJQfhHaNAOWWRKxpAXhM8NZPojzsJPyHMf2qY=@protonmail.com/#t
Reported-by: Russell Haley <yumpusamongus@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/598ecc75-eb80-41b3-83c2-f2317fbb9864@gmail.com/
Fixes: f2d72f42d5 ("Btrfs: fix warning when replaying log after fsync of a tmpfile")
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-08-06 13:01:38 +02:00
Linus Torvalds
479058002c ata fixes for 6.17-rc1
- Cleanup whitespace in messages in libata-core and the pata_pdc2027x,
    pata_macio drivers (Colin).
 
  - Fix ata_to_sense_error() to avoid seeing nonsensical sense data for
    rare cases where we fail to get sense data from the drive. The
    complementary fix to this is to ensure that we always return the
    generic "ABORTED COMMAND" sense data for a failed command for which
    we have no status or error fields.
 
  - The recent changes to link power management (LPM) which now prevent
    the user from attempting to set an LPM policy through the
    link_power_management_policy caused some regressions in test
    environments because of the error that is now returned when writing
    to that attribute when LPM is not supported. To allow users to not
    trip on this, introduce the new link_power_management_supported
    attribute to allow simple testing of a port/device LPM support (me).
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Merge tag 'ata-6.17-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata fixes from Damien Le Moal:

 - Cleanup whitespace in messages in libata-core and the pata_pdc2027x,
   pata_macio drivers (Colin)

 - Fix ata_to_sense_error() to avoid seeing nonsensical sense data for
   rare cases where we fail to get sense data from the drive. The
   complementary fix to this is to ensure that we always return the
   generic "ABORTED COMMAND" sense data for a failed command for which
   we have no status or error fields

 - The recent changes to link power management (LPM) which now prevent
   the user from attempting to set an LPM policy through the
   link_power_management_policy caused some regressions in test
   environments because of the error that is now returned when writing
   to that attribute when LPM is not supported. To allow users to not
   trip on this, introduce the new link_power_management_supported
   attribute to allow simple testing of a port/device LPM support (me)

* tag 'ata-6.17-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  ata: pata_pdc2027x: Remove space before newline and abbreviations
  ata: pata_macio: Remove space before newline
  ata: libata-core: Remove space before newline
  ata: libata-sata: Add link_power_management_supported sysfs attribute
  ata: libata-scsi: Return aborted command when missing sense and result TF
  ata: libata-scsi: Fix ata_to_sense_error() status handling
2025-08-06 08:52:59 +03:00
Linus Torvalds
a530a36bb5 Kbuild updates for v6.17
- Fix a shortcut key issue in menuconfig
 
  - Fix missing rebuild of kheaders
 
  - Sort the symbol dump generated by gendwarfsyms
 
  - Support zboot extraction in scripts/extract-vmlinux
 
  - Migrate gconfig to GTK 3
 
  - Add TAR variable to allow overriding the default tar command
 
  - Hand over Kbuild maintainership
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Merge tag 'kbuild-v6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:
 "This is the last pull request from me.

  I'm grateful to have been able to continue as a maintainer for eight
  years. From the next cycle, Nathan and Nicolas will maintain Kbuild.

   - Fix a shortcut key issue in menuconfig

   - Fix missing rebuild of kheaders

   - Sort the symbol dump generated by gendwarfsyms

   - Support zboot extraction in scripts/extract-vmlinux

   - Migrate gconfig to GTK 3

   - Add TAR variable to allow overriding the default tar command

   - Hand over Kbuild maintainership"

* tag 'kbuild-v6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (92 commits)
  MAINTAINERS: hand over Kbuild maintenance
  kheaders: make it possible to override TAR
  kbuild: userprogs: use correct linker when mixing clang and GNU ld
  kconfig: lxdialog: replace strcpy() with strncpy() in inputbox.c
  kconfig: lxdialog: replace strcpy with snprintf in print_autowrap
  kconfig: gconf: refactor text_insert_help()
  kconfig: gconf: remove unneeded variable in text_insert_msg
  kconfig: gconf: use hyphens in signals
  kconfig: gconf: replace GtkImageMenuItem with GtkMenuItem
  kconfig: gconf: Fix Back button behavior
  kconfig: gconf: fix single view to display dependent symbols correctly
  scripts: add zboot support to extract-vmlinux
  gendwarfksyms: order -T symtypes output by name
  gendwarfksyms: use preferred form of sizeof for allocation
  kconfig: qconf: confine {begin,end}Group to constructor and destructor
  kconfig: qconf: fix ConfigList::updateListAllforAll()
  kconfig: add a function to dump all menu entries in a tree-like format
  kconfig: gconf: show GTK version in About dialog
  kconfig: gconf: replace GtkHPaned and GtkVPaned with GtkPaned
  kconfig: gconf: replace GdkColor with GdkRGBA
  ...
2025-08-06 07:32:52 +03:00
Sasha Levin
7881cd6886 media: venus: Fix OPP table error handling
The venus driver fails to check if dev_pm_opp_find_freq_{ceil,floor}()
returns an error pointer before calling dev_pm_opp_put(). This causes
a crash when OPP tables are not present in device tree.

Unable to handle kernel access to user memory outside uaccess routines
at virtual address 000000000000002e
...
pc : dev_pm_opp_put+0x1c/0x4c
lr : core_clks_enable+0x4c/0x16c [venus_core]

Add IS_ERR() checks before calling dev_pm_opp_put() to avoid
dereferencing error pointers.

Fixes: b179234b5e ("media: venus: pm_helpers: use opp-table for the frequency")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-08-06 04:57:14 +03:00
Linus Torvalds
adf12a394c Perf fixes for perf_mmap() reference counting to prevent potential
reference count leaks which are caused by:
 
  - VMA splits, which change the offset or size of a mapping, which causes
    perf_mmap_close() to ignore the unmap or unmap the wrong buffer.
 
  - Several internal issues of perf_mmap(), which can cause reference count
    leaks in the perf mmap, corrupt accounting or cause leaks in perf
    drivers.
 
 The main fix is to prevent VMA splits by implementing the [may_]split()
 callback for vm operations. The other issues are addressed by rearranging
 code, early returns on failure and invocation of cleanups.
 
 Also provide a selftest to validate the fixes.
 
 The reference counting should be converted to refcount_t, but that requires
 larger refactoring of the code and will be done once these fixes are
 upstream.
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Merge tag 'perf-fixes-27504' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git

Pull perf fixes from Thomas Gleixner:
 "Perf fixes for perf_mmap() reference counting to prevent potential
  reference count leaks which are caused by:

   - VMA splits, which change the offset or size of a mapping, which
     causes perf_mmap_close() to ignore the unmap or unmap the wrong
     buffer.

   - Several internal issues of perf_mmap(), which can cause reference
     count leaks in the perf mmap, corrupt accounting or cause leaks in
     perf drivers.

  The main fix is to prevent VMA splits by implementing the
  [may_]split() callback for vm operations.

  The other issues are addressed by rearranging code, early returns on
  failure and invocation of cleanups.

  Also provide a selftest to validate the fixes.

  The reference counting should be converted to refcount_t, but that
  requires larger refactoring of the code and will be done once these
  fixes are upstream"

* tag 'perf-fixes-27504' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git:
  selftests/perf_events: Add a mmap() correctness test
  perf/core: Prevent VMA split of buffer mappings
  perf/core: Handle buffer mapping fail correctly in perf_mmap()
  perf/core: Exit early on perf_mmap() fail
  perf/core: Don't leak AUX buffer refcount on allocation failure
  perf/core: Preserve AUX buffer allocation failure result
2025-08-06 04:41:21 +03:00
Ammar Faizi
8466d39370 net: usbnet: Fix the wrong netif_carrier_on() call
The commit referenced in the Fixes tag causes usbnet to malfunction
(identified via git bisect). Post-commit, my external RJ45 LAN cable
fails to connect. Linus also reported the same issue after pulling that
commit.

The code has a logic error: netif_carrier_on() is only called when the
link is already on. Fix this by moving the netif_carrier_on() call
outside the if-statement entirely. This ensures it is always called
when EVENT_LINK_CARRIER_ON is set and properly clears it regardless
of the link state.

Cc: stable@vger.kernel.org
Cc: Armando Budianto <sprite@gnuweeb.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/all/CAHk-=wjqL4uF0MG_c8+xHX1Vv8==sPYQrtzbdA3kzi96284nuQ@mail.gmail.com
Closes: https://lore.kernel.org/netdev/CAHk-=wjKh8X4PT_mU1kD4GQrbjivMfPn-_hXa6han_BTDcXddw@mail.gmail.com
Closes: https://lore.kernel.org/netdev/0752dee6-43d6-4e1f-81d2-4248142cccd2@gnuweeb.org
Fixes: 0d9cfc9b8c ("net: usbnet: Avoid potential RCU stall on LINK_CHANGE event")
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-08-06 04:39:42 +03:00
Masahiro Yamada
8d6841d5cb MAINTAINERS: hand over Kbuild maintenance
I'm stepping down as the maintainer of Kbuild/Kconfig.
It was enjoyable to refactor and improve the kernel build system,
but due to personal reasons, I believe it's difficult for me to
continue in this role any further.

I discussed this off-list with Nathan and Nicolas, and they have
kindly agreed to take over the maintenance of Kbuild with Odd Fixes.
I'm grateful to them for stepping in.

As for Kconfig, there are currently no designated reviewers, so the
maintainer position will remain vacant for now. I hope someone will
step up to take on the role.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Nicolas Schier <nicolas@fjasle.eu>
2025-08-06 10:23:36 +09:00
Michał Górny
73d210e9fa kheaders: make it possible to override TAR
Commit 86cdd2fdc4 ("kheaders: make headers archive reproducible")
introduced a number of options specific to GNU tar to the `tar`
invocation in `gen_kheaders.sh` script. This causes the script to fail
to work on systems where `tar` is not GNU tar. This can occur e.g.
on recent Gentoo Linux installations that support using bsdtar from
libarchive instead.

Add a `TAR` make variable to make it possible to override the tar
executable used, e.g. by specifying:

  make TAR=gtar

Link: https://bugs.gentoo.org/884061
Reported-by: Sam James <sam@gentoo.org>
Tested-by: Sam James <sam@gentoo.org>
Co-developed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Sam James <sam@gentoo.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-08-06 10:23:36 +09:00
Thomas Weißschuh
936599ca51 kbuild: userprogs: use correct linker when mixing clang and GNU ld
The userprogs infrastructure does not expect clang being used with GNU ld
and in that case uses /usr/bin/ld for linking, not the configured $(LD).
This fallback is problematic as it will break when cross-compiling.
Mixing clang and GNU ld is used for example when building for SPARC64,
as ld.lld is not sufficient; see Documentation/kbuild/llvm.rst.

Relax the check around --ld-path so it gets used for all linkers.

Fixes: dfc1b168a8 ("kbuild: userprogs: use correct lld when linking through clang")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-08-06 10:23:36 +09:00
Suchit Karunakaran
5ac726653a kconfig: lxdialog: replace strcpy() with strncpy() in inputbox.c
strcpy() performs no bounds checking and can lead to buffer overflows if
the input string exceeds the destination buffer size. This patch replaces
it with strncpy(), and null terminates the input string.

Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Reviewed-by: Nicolas Schier <nicolas.schier@linux.dev>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-08-06 10:23:36 +09:00
Suchit Karunakaran
1918f98368 kconfig: lxdialog: replace strcpy with snprintf in print_autowrap
strcpy() does not perform bounds checking and can lead to buffer overflows
if the source string exceeds the destination buffer size. In
print_autowrap(), replace strcpy() with snprintf() to safely copy the
prompt string into the fixed-size tempstr buffer.

Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-08-06 10:23:36 +09:00
Keith Busch
b1779e4f20 vfio/type1: conditional rescheduling while pinning
A large DMA mapping request can loop through dma address pinning for
many pages. In cases where THP can not be used, the repeated vmf_insert_pfn can
be costly, so let the task reschedule as need to prevent CPU stalls. Failure to
do so has potential harmful side effects, like increased memory pressure
as unrelated rcu tasks are unable to make their reclaim callbacks and
result in OOM conditions.

 rcu: INFO: rcu_sched self-detected stall on CPU
 rcu:   36-....: (20999 ticks this GP) idle=b01c/1/0x4000000000000000 softirq=35839/35839 fqs=3538
 rcu:            hardirqs   softirqs   csw/system
 rcu:    number:        0        107            0
 rcu:   cputime:       50          0        10446   ==> 10556(ms)
 rcu:   (t=21075 jiffies g=377761 q=204059 ncpus=384)
...
  <TASK>
  ? asm_sysvec_apic_timer_interrupt+0x16/0x20
  ? walk_system_ram_range+0x63/0x120
  ? walk_system_ram_range+0x46/0x120
  ? pgprot_writethrough+0x20/0x20
  lookup_memtype+0x67/0xf0
  track_pfn_insert+0x20/0x40
  vmf_insert_pfn_prot+0x88/0x140
  vfio_pci_mmap_huge_fault+0xf9/0x1b0 [vfio_pci_core]
  __do_fault+0x28/0x1b0
  handle_mm_fault+0xef1/0x2560
  fixup_user_fault+0xf5/0x270
  vaddr_get_pfns+0x169/0x2f0 [vfio_iommu_type1]
  vfio_pin_pages_remote+0x162/0x8e0 [vfio_iommu_type1]
  vfio_iommu_type1_ioctl+0x1121/0x1810 [vfio_iommu_type1]
  ? futex_wake+0x1c1/0x260
  x64_sys_call+0x234/0x17a0
  do_syscall_64+0x63/0x130
  ? exc_page_fault+0x63/0x130
  entry_SYSCALL_64_after_hwframe+0x4b/0x53

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20250715184622.3561598-1-kbusch@meta.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-05 15:41:19 -06:00
Małgorzata Mielnik
1e9c0f1da5 vfio/qat: add support for intel QAT 6xxx virtual functions
Extend the qat_vfio_pci variant driver to support QAT 6xxx Virtual
Functions (VFs). Add the relevant QAT 6xxx VF device IDs to the driver's
probe table, enabling proper detection and initialization of these devices.

Update the module description to reflect that the driver now supports all
QAT generations.

Signed-off-by: Małgorzata Mielnik <malgorzata.mielnik@intel.com>
Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Link: https://lore.kernel.org/r/20250715081150.1244466-1-suman.kumar.chakraborty@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-05 15:41:18 -06:00
Xin Zeng
27a23faecd vfio/qat: Remove myself from VFIO QAT PCI driver maintainers
Remove myself from VFIO QAT PCI driver maintainers as I'm leaving
Intel.

Signed-off-by: Xin Zeng <xin.zeng@intel.com>
Link: https://lore.kernel.org/r/20250715001357.33725-1-xin.zeng@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-05 15:41:18 -06:00
Jason Gunthorpe
86624ba3b5 vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD
This was missed during the initial implementation. The VFIO PCI encodes
the vf_token inside the device name when opening the device from the group
FD, something like:

  "0000:04:10.0 vf_token=bd8d9d2b-5a5f-4f5a-a211-f591514ba1f3"

This is used to control access to a VF unless there is co-ordination with
the owner of the PF.

Since we no longer have a device name in the cdev path, pass the token
directly through VFIO_DEVICE_BIND_IOMMUFD using an optional field
indicated by VFIO_DEVICE_BIND_FLAG_TOKEN.

Fixes: 5fcc26969a ("vfio: Add VFIO_DEVICE_BIND_IOMMUFD")
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/0-v3-bdd8716e85fe+3978a-vfio_token_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-05 15:41:14 -06:00
Marcos Alano
89c5214639 Input: add keycode for performance mode key
Alienware calls this key "Performance Boost". Dell calls it "G-Mode".

The goal is to have a specific keycode to detect when this key is
pressed, so userspace can act upon it and do what have to do, usually
starting the power profile for performance.

Signed-off-by: Marcos Alano <marcoshalano@gmail.com>
Link: https://lore.kernel.org/r/20250509193708.2190586-1-marcoshalano@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-08-05 13:51:10 -07:00
Lorenzo Stoakes
084d2ac403 selftests/perf_events: Add a mmap() correctness test
Exercise various mmap(), munmap() and mremap() invocations, which might
cause a perf buffer mapping to be split or truncated.

To avoid hard coding the perf event and having dependencies on
architectures and configuration options, scan through event types in sysfs
and try to open them. On success, try to mmap() and if that succeeds try to
mmap() the AUX buffer.

In case that no AUX buffer supporting event is found, only test the base
buffer mapping. If no mappable event is found or permissions are not
sufficient, skip the tests.

Reserve a PROT_NONE region for both rb and aux tests to allow testing the
case where mremap unmaps beyond the end of a mapped VMA to prevent it from
unmapping unrelated mappings.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>            
Co-developed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
2025-08-05 21:55:29 +02:00
Thomas Gleixner
b024d7b56c perf/core: Prevent VMA split of buffer mappings
The perf mmap code is careful about mmap()'ing the user page with the
ringbuffer and additionally the auxiliary buffer, when the event supports
it. Once the first mapping is established, subsequent mapping have to use
the same offset and the same size in both cases. The reference counting for
the ringbuffer and the auxiliary buffer depends on this being correct.

Though perf does not prevent that a related mapping is split via mmap(2),
munmap(2) or mremap(2). A split of a VMA results in perf_mmap_open() calls,
which take reference counts, but then the subsequent perf_mmap_close()
calls are not longer fulfilling the offset and size checks. This leads to
reference count leaks.

As perf already has the requirement for subsequent mappings to match the
initial mapping, the obvious consequence is that VMA splits, caused by
resizing of a mapping or partial unmapping, have to be prevented.

Implement the vm_operations_struct::may_split() callback and return
unconditionally -EINVAL.

That ensures that the mapping offsets and sizes cannot be changed after the
fact. Remapping to a different fixed address with the same size is still
possible as it takes the references for the new mapping and drops those of
the old mapping.

Fixes: 45bfb2e504 ("perf: Add AUX area to ring buffer for raw data streams")
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-27504
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: stable@vger.kernel.org
2025-08-05 21:55:29 +02:00
Thomas Gleixner
f74b9f4ba6 perf/core: Handle buffer mapping fail correctly in perf_mmap()
After successful allocation of a buffer or a successful attachment to an
existing buffer perf_mmap() tries to map the buffer read only into the page
table. If that fails, the already set up page table entries are zapped, but
the other perf specific side effects of that failure are not handled.  The
calling code just cleans up the VMA and does not invoke perf_mmap_close().

This leaks reference counts, corrupts user->vm accounting and also results
in an unbalanced invocation of event::event_mapped().

Cure this by moving the event::event_mapped() invocation before the
map_range() call so that on map_range() failure perf_mmap_close() can be
invoked without causing an unbalanced event::event_unmapped() call.

perf_mmap_close() undoes the reference counts and eventually frees buffers.

Fixes: b709eb872e ("perf: map pages in advance")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: stable@vger.kernel.org
2025-08-05 21:55:29 +02:00
Thomas Gleixner
07091aade3 perf/core: Exit early on perf_mmap() fail
When perf_mmap() fails to allocate a buffer, it still invokes the
event_mapped() callback of the related event. On X86 this might increase
the perf_rdpmc_allowed reference counter. But nothing undoes this as
perf_mmap_close() is never called in this case, which causes another
reference count leak.

Return early on failure to prevent that.

Fixes: 1e0fb9ec67 ("perf: Add pmu callbacks to track event mapping and unmapping")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: stable@vger.kernel.org
2025-08-05 21:55:29 +02:00
Thomas Gleixner
5468c0fbcc perf/core: Don't leak AUX buffer refcount on allocation failure
Failure of the AUX buffer allocation leaks the reference count.

Set the reference count to 1 only when the allocation succeeds.

Fixes: 45bfb2e504 ("perf: Add AUX area to ring buffer for raw data streams")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: stable@vger.kernel.org
2025-08-05 21:55:29 +02:00
Thomas Gleixner
54473e0ef8 perf/core: Preserve AUX buffer allocation failure result
A recent overhaul sets the return value to 0 unconditionally after the
allocations, which causes reference count leaks and corrupts the user->vm
accounting.

Preserve the AUX buffer allocation failure return value, so that the
subsequent code works correctly.

Fixes: 0983593f32 ("perf/core: Lift event->mmap_mutex in perf_mmap()")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: stable@vger.kernel.org
2025-08-05 21:55:28 +02:00
Pedro Falcato
c18646248f RDMA/siw: Fix the sendmsg byte count in siw_tcp_sendpages
Ever since commit c2ff29e99a ("siw: Inline do_tcp_sendpages()"),
we have been doing this:

static int siw_tcp_sendpages(struct socket *s, struct page **page, int offset,
                             size_t size)
[...]
        /* Calculate the number of bytes we need to push, for this page
         * specifically */
        size_t bytes = min_t(size_t, PAGE_SIZE - offset, size);
        /* If we can't splice it, then copy it in, as normal */
        if (!sendpage_ok(page[i]))
                msg.msg_flags &= ~MSG_SPLICE_PAGES;
        /* Set the bvec pointing to the page, with len $bytes */
        bvec_set_page(&bvec, page[i], bytes, offset);
        /* Set the iter to $size, aka the size of the whole sendpages (!!!) */
        iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, size);
try_page_again:
        lock_sock(sk);
        /* Sendmsg with $size size (!!!) */
        rv = tcp_sendmsg_locked(sk, &msg, size);

This means we've been sending oversized iov_iters and tcp_sendmsg calls
for a while. This has a been a benign bug because sendpage_ok() always
returned true. With the recent slab allocator changes being slowly
introduced into next (that disallow sendpage on large kmalloc
allocations), we have recently hit out-of-bounds crashes, due to slight
differences in iov_iter behavior between the MSG_SPLICE_PAGES and
"regular" copy paths:

(MSG_SPLICE_PAGES)
skb_splice_from_iter
  iov_iter_extract_pages
    iov_iter_extract_bvec_pages
      uses i->nr_segs to correctly stop in its tracks before OoB'ing everywhere
  skb_splice_from_iter gets a "short" read

(!MSG_SPLICE_PAGES)
skb_copy_to_page_nocache copy=iov_iter_count
 [...]
   copy_from_iter
        /* this doesn't help */
        if (unlikely(iter->count < len))
                len = iter->count;
          iterate_bvec
            ... and we run off the bvecs

Fix this by properly setting the iov_iter's byte count, plus sending the
correct byte count to tcp_sendmsg_locked.

Link: https://patch.msgid.link/r/20250729120348.495568-1-pfalcato@suse.de
Cc: stable@vger.kernel.org
Fixes: c2ff29e99a ("siw: Inline do_tcp_sendpages()")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202507220801.50a7210-lkp@intel.com
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Pedro Falcato <pfalcato@suse.de>
Acked-by: Bernard Metzler <bernard.metzler@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-08-05 11:33:10 -03:00
Linus Torvalds
6bcdbd62bd ARM updates for 6.17-rc1
- Finish removing Coresight support
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM update from Russell King:
 "Just one development update this time:

   - Finish removing Coresight support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9449/1: coresight: Finish removal of Coresight support in arch/arm/kernel
2025-08-05 16:55:03 +03:00
Linus Torvalds
5998f2bca4 Description for this pull request:
- Use generic_write_sync instead of vfs_fsync_range in exfat_file_write_iter.
    It will fix an issue where fdatasync would be set incorrectly.
  - Fix potential infinite loop by the self-linked chain.
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Merge tag 'exfat-for-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - Use generic_write_sync instead of vfs_fsync_range in exfat_file_write_iter.
   It will fix an issue where fdatasync would be set incorrectly.

 - Fix potential infinite loop by the self-linked chain.

* tag 'exfat-for-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: add cluster chain loop check for dir
  exfat: fdatasync flag should be same like generic_write_sync()
2025-08-05 16:37:05 +03:00
Linus Torvalds
da23ea194d Significant patch series in this pull request:
- The 4 patch series "mseal cleanups" from Lorenzo Stoakes erforms some
   mseal cleaning with no intended functional change.
 
 - The 3 patch series "Optimizations for khugepaged" from David
   Hildenbrand improves khugepaged throughput by batching PTE operations
   for large folios.  This gain is mainly for arm64.
 
 - The 8 patch series "x86: enable EXECMEM_ROX_CACHE for ftrace and
   kprobes" from Mike Rapoport provides a bugfix, additional debug code and
   cleanups to the execmem code.
 
 - The 7 patch series "mm/shmem, swap: bugfix and improvement of mTHP
   swap in" from Kairui Song provides bugfixes, cleanups and performance
   improvememnts to the mTHP swapin code.
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Merge tag 'mm-stable-2025-08-03-12-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:
 "Significant patch series in this pull request:

   - "mseal cleanups" (Lorenzo Stoakes)

     Some mseal cleaning with no intended functional change.

   - "Optimizations for khugepaged" (David Hildenbrand)

     Improve khugepaged throughput by batching PTE operations for large
     folios. This gain is mainly for arm64.

   - "x86: enable EXECMEM_ROX_CACHE for ftrace and kprobes" (Mike Rapoport)

     A bugfix, additional debug code and cleanups to the execmem code.

   - "mm/shmem, swap: bugfix and improvement of mTHP swap in" (Kairui Song)

     Bugfixes, cleanups and performance improvememnts to the mTHP swapin
     code"

* tag 'mm-stable-2025-08-03-12-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (38 commits)
  mm: mempool: fix crash in mempool_free() for zero-minimum pools
  mm: correct type for vmalloc vm_flags fields
  mm/shmem, swap: fix major fault counting
  mm/shmem, swap: rework swap entry and index calculation for large swapin
  mm/shmem, swap: simplify swapin path and result handling
  mm/shmem, swap: never use swap cache and readahead for SWP_SYNCHRONOUS_IO
  mm/shmem, swap: tidy up swap entry splitting
  mm/shmem, swap: tidy up THP swapin checks
  mm/shmem, swap: avoid redundant Xarray lookup during swapin
  x86/ftrace: enable EXECMEM_ROX_CACHE for ftrace allocations
  x86/kprobes: enable EXECMEM_ROX_CACHE for kprobes allocations
  execmem: drop writable parameter from execmem_fill_trapping_insns()
  execmem: add fallback for failures in vmalloc(VM_ALLOW_HUGE_VMAP)
  execmem: move execmem_force_rw() and execmem_restore_rox() before use
  execmem: rework execmem_cache_free()
  execmem: introduce execmem_alloc_rw()
  execmem: drop unused execmem_update_copy()
  mm: fix a UAF when vma->mm is freed after vma->vm_refcnt got dropped
  mm/rmap: add anon_vma lifetime debug check
  mm: remove mm/io-mapping.c
  ...
2025-08-05 16:02:07 +03:00
Linus Torvalds
7e161a991e i2c-for-6.17-rc1-part2
- acpi: enable 100kHz workaround for DLL0945
 - apple: add support for Apple A7–A11, T2 chips; Kconfig update
 - mux: mule: fix error handling path
 - qcom-geni: fix controller frequency mapping
 - stm32f7: add DMA-safe transfer support
 - tegra: use controller reset if device reset is missing
 - tegra: remove unnecessary dma_sync*() calls
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Merge tag 'i2c-for-6.17-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull more i2c updates from Wolfram Sang:
 "A few more patches from I2C. Some are fixes which would be nice to
  have in rc1 already, some patches have nearly been fallen through the
  cracks, some just needed a bit more testing.

   - acpi: enable 100kHz workaround for DLL0945

   - apple: add support for Apple A7–A11, T2 chips; Kconfig update

   - mux: mule: fix error handling path

   - qcom-geni: fix controller frequency mapping

   - stm32f7: add DMA-safe transfer support

   - tegra: use controller reset if device reset is missing

   - tegra: remove unnecessary dma_sync*() calls"

* tag 'i2c-for-6.17-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: muxes: mule: Fix an error handling path in mule_i2c_mux_probe()
  i2c: Force DLL0945 touchpad i2c freq to 100khz
  i2c: apple: Drop default ARCH_APPLE in Kconfig
  i2c: qcom-geni: fix I2C frequency table to achieve accurate bus rates
  dt-bindings: i2c: apple,i2c: Document Apple A7-A11, T2 compatibles
  i2c: tegra: Remove dma_sync_*() calls
  i2c: tegra: Use internal reset when reset property is not available
  i2c: stm32f7: support i2c_*_dma_safe_msg_buf APIs
2025-08-04 16:37:29 -07:00
Linus Torvalds
0974f486f3 f2fs-for-6.17-rc1
In this round, we've mainly updated three parts: 1) folio conversion by Matthew,
 2) switch to a new mount API by Hongbo and Eric, and 3) several sysfs entries
 to tune GCs for ZUFS with finer granularity by Daeho. There are also patches
 to address bugs and issues in the existing features such as GCs, file pinning,
 write-while-dio-read, contingous block allocation, and memory access violations.
 
 Enhancement:
  - switch to new mount API and folio conversion
  - add sysfs nodes to controle F2FS GCs for ZUFS
  - improve performance on the nat entry cache
  - drop inode from the donation list when the last file is closed
  - avoid splitting bio when reading multiple pages
 
 Bug fix:
  - fix to trigger foreground gc during f2fs_map_blocks() in lfs mode
  - make sure zoned device GC to use FG_GC in shortage of free section
  - fix to calculate dirty data during has_not_enough_free_secs()
  - fix to update upper_p in __get_secs_required() correctly
  - wait for inflight dio completion, excluding pinned files read using dio
  - don't break allocation when crossing contiguous sections
  - vm_unmap_ram() may be called from an invalid context
  - fix to avoid out-of-boundary access in dnode page
  - fix to avoid panic in f2fs_evict_inode
  - fix to avoid UAF in f2fs_sync_inode_meta()
  - fix to use f2fs_is_valid_blkaddr_raw() in do_write_page()
  - fix UAF of f2fs_inode_info in f2fs_free_dic
  - fix to avoid invalid wait context issue
  - fix bio memleak when committing super block
  - handle nat.blkaddr corruption in f2fs_get_node_info()
 
 In addition, there are also clean-ups and minor bug fixes.
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Merge tag 'f2fs-for-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "Three main updates: folio conversion by Matthew, switch to a new mount
  API by Hongbo and Eric, and several sysfs entries to tune GCs for ZUFS
  with finer granularity by Daeho.

  There are also patches to address bugs and issues in the existing
  features such as GCs, file pinning, write-while-dio-read, contingous
  block allocation, and memory access violations.

  Enhancements:
   - switch to new mount API and folio conversion
   - add sysfs nodes to controle F2FS GCs for ZUFS
   - improve performance on the nat entry cache
   - drop inode from the donation list when the last file is closed
   - avoid splitting bio when reading multiple pages

  Bug fixes:
   - fix to trigger foreground gc during f2fs_map_blocks() in lfs mode
   - make sure zoned device GC to use FG_GC in shortage of free section
   - fix to calculate dirty data during has_not_enough_free_secs()
   - fix to update upper_p in __get_secs_required() correctly
   - wait for inflight dio completion, excluding pinned files read using dio
   - don't break allocation when crossing contiguous sections
   - vm_unmap_ram() may be called from an invalid context
   - fix to avoid out-of-boundary access in dnode page
   - fix to avoid panic in f2fs_evict_inode
   - fix to avoid UAF in f2fs_sync_inode_meta()
   - fix to use f2fs_is_valid_blkaddr_raw() in do_write_page()
   - fix UAF of f2fs_inode_info in f2fs_free_dic
   - fix to avoid invalid wait context issue
   - fix bio memleak when committing super block
   - handle nat.blkaddr corruption in f2fs_get_node_info()

  In addition, there are also clean-ups and minor bug fixes"

* tag 'f2fs-for-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (109 commits)
  f2fs: drop inode from the donation list when the last file is closed
  f2fs: add gc_boost_gc_greedy sysfs node
  f2fs: add gc_boost_gc_multiple sysfs node
  f2fs: fix to trigger foreground gc during f2fs_map_blocks() in lfs mode
  f2fs: fix to calculate dirty data during has_not_enough_free_secs()
  f2fs: fix to update upper_p in __get_secs_required() correctly
  f2fs: directly add newly allocated pre-dirty nat entry to dirty set list
  f2fs: avoid redundant clean nat entry move in lru list
  f2fs: zone: wait for inflight dio completion, excluding pinned files read using dio
  f2fs: ignore valid ratio when free section count is low
  f2fs: don't break allocation when crossing contiguous sections
  f2fs: remove unnecessary tracepoint enabled check
  f2fs: merge the two conditions to avoid code duplication
  f2fs: vm_unmap_ram() may be called from an invalid context
  f2fs: fix to avoid out-of-boundary access in dnode page
  f2fs: switch to the new mount api
  f2fs: introduce fs_context_operation structure
  f2fs: separate the options parsing and options checking
  f2fs: Add f2fs_fs_context to record the mount options
  f2fs: Allow sbi to be NULL in f2fs_printk
  ...
2025-08-04 16:27:21 -07:00
Linus Torvalds
35a813e010 printk changes for 6.17
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Merge tag 'printk-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Add new "hash_pointers=[auto|always|never]" boot parameter to force
   the hashing even with "slab_debug" enabled

 - Allow to stop CPU, after losing nbcon console ownership during
   panic(), even without proper NMI

 - Allow to use the printk kthread immediately even for the 1st
   registered nbcon

 - Compiler warning removal

* tag 'printk-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: nbcon: Allow reacquire during panic
  printk: Allow to use the printk kthread immediately even for 1st nbcon
  slab: Decouple slab_debug and no_hash_pointers
  vsprintf: Use __diag macros to disable '-Wsuggest-attribute=format'
  compiler-gcc.h: Introduce __diag_GCC_all
2025-08-04 10:54:36 -07:00
Peter Zijlstra
99b773d720 sched/psi: Fix psi_seq initialization
With the seqcount moved out of the group into a global psi_seq,
re-initializing the seqcount on group creation is causing seqcount
corruption.

Fixes: 570c8efd5e ("sched/psi: Optimize psi_group_change() cpu_clock() usage")
Reported-by: Chris Mason <clm@meta.com>
Suggested-by: Beata Michalska <beata.michalska@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-08-04 10:51:22 -07:00
Linus Torvalds
d632ab86af dm-table: fix checking for request-based stackable devices
dm-flakey: fix corrupt_bio_byte setup checks
 
 dm raid: add support for resync w/o metadata devices
 
 dm, dm-mpath, vm-vdo, dm-raid: small code simplification
 
 dm-verity: remove support for asynchronous hashes
 
 dm-zoned-target: close smatch warning
 
 dm-thin: update the documentation
 
 dm-thin: enable inline-crypto passthrough
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Merge tag 'for-6.17/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mikulas Patocka:

 - fix checking for request-based stackable devices (dm-table)

 - fix corrupt_bio_byte setup checks (dm-flakey)

 - add support for resync w/o metadata devices (dm raid)

 - small code simplification (dm, dm-mpath, vm-vdo, dm-raid)

 - remove support for asynchronous hashes (dm-verity)

 - close smatch warning (dm-zoned-target)

 - update the documentation and enable inline-crypto passthrough
   (dm-thin)

* tag 'for-6.17/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: set DM_TARGET_PASSES_CRYPTO feature for dm-thin
  dm-thin: update the documentation
  dm-raid: do not include dm-core.h
  vdo: omit need_resched() before cond_resched()
  md: dm-zoned-target: Initialize return variable r to avoid uninitialized use
  dm-verity: remove support for asynchronous hashes
  dm-mpath: don't print the "loaded" message if registering fails
  dm-mpath: make dm_unregister_path_selector return void
  dm: ima: avoid extra calls to strlen()
  dm: Simplify dm_io_complete()
  dm: Remove unnecessary return in dm_zone_endio()
  dm raid: add support for resync w/o metadata devices
  dm-flakey: Fix corrupt_bio_byte setup checks
  dm-table: fix checking for rq stackable devices
2025-08-04 08:58:53 -07:00
Linus Torvalds
69917dbfb6 OpenRISC updates for 6.17
I picked up one series from Thomas Huth:
 
  - For openrisc Replace __ASSEMBLY__ with __ASSEMBLER__ in headers.
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Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:

 - Replace __ASSEMBLY__ with __ASSEMBLER__ in headers (Thomas Huth)

* tag 'for-linus' of https://github.com/openrisc/linux:
  openrisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
  openrisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
2025-08-04 08:37:46 -07:00
Linus Torvalds
8b45c6c90a + Features
- improve debug printing
   - carry mediation check on label (optimization)
   - improve ability for compiler to optimize __begin_current_label_crit_section
   - transition for a linked list of rulesets to a vector of rulesets
   - don't hardcode profile signal, allow it to be set by policy
   - ability to mediate caps via the state machine instead of lut
   - Add Ubuntu af_unix mediation, put it behind new v9 abi
 
 + Cleanups
   - fix typos and spelling errors
   - cleanup kernel doc and code inconsistencies
   - remove redundant checks/code
   - remove unused variables
   - Use str_yes_no() helper function
   - mark tables static where appropriate
   - make all generated string array headers const char *const
   - refactor to doc semantics of file_perm checks
   - replace macro calls to network/socket fns with explicit calls
   - refactor/cleanup socket mediation code preparing for finer grained
     mediation of different network families
   - several updates to kernel doc comments
 
 + Bug fixes
   - apparmor: Fix incorrect profile->signal range check
   - idmap mount fixes
   - policy unpack unaligned access fixes
   - kfree_sensitive() where appropriate
   - fix oops when freeing policy
   - fix conflicting attachment resolution
   - fix exec table look-ups when stacking isn't first
   - fix exec auditing
   - mitigate userspace generating overly large xtables
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Merge tag 'apparmor-pr-2025-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

Pull apparmor updates from John Johansen:
 "This has one major feature, it pulls in a cleaned up version of
  af_unix mediation that Ubuntu has been carrying for years. It is
  placed behind a new abi to ensure that it does cause policy
  regressions. With pulling in the af_unix mediation there have been
  cleanups and some refactoring of network socket mediation. This
  accounts for the majority of the changes in the diff.

  In addition there are a few improvements providing minor code
  optimizations. several code cleanups, and bug fixes.

  Features:
   - improve debug printing
   - carry mediation check on label (optimization)
   - improve ability for compiler to optimize
     __begin_current_label_crit_section
   - transition for a linked list of rulesets to a vector of rulesets
   - don't hardcode profile signal, allow it to be set by policy
   - ability to mediate caps via the state machine instead of lut
   - Add Ubuntu af_unix mediation, put it behind new v9 abi

  Cleanups:
   - fix typos and spelling errors
   - cleanup kernel doc and code inconsistencies
   - remove redundant checks/code
   - remove unused variables
   - Use str_yes_no() helper function
   - mark tables static where appropriate
   - make all generated string array headers const char *const
   - refactor to doc semantics of file_perm checks
   - replace macro calls to network/socket fns with explicit calls
   - refactor/cleanup socket mediation code preparing for finer grained
     mediation of different network families
   - several updates to kernel doc comments

  Bug fixes:
   - fix incorrect profile->signal range check
   - idmap mount fixes
   - policy unpack unaligned access fixes
   - kfree_sensitive() where appropriate
   - fix oops when freeing policy
   - fix conflicting attachment resolution
   - fix exec table look-ups when stacking isn't first
   - fix exec auditing
   - mitigate userspace generating overly large xtables"

* tag 'apparmor-pr-2025-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (60 commits)
  apparmor: fix: oops when trying to free null ruleset
  apparmor: fix Regression on linux-next (next-20250721)
  apparmor: fix test error: WARNING in apparmor_unix_stream_connect
  apparmor: Remove the unused variable rules
  apparmor: fix: accept2 being specifie even when permission table is presnt
  apparmor: transition from a list of rules to a vector of rules
  apparmor: fix documentation mismatches in val_mask_to_str and socket functions
  apparmor: remove redundant perms.allow MAY_EXEC bitflag set
  apparmor: fix kernel doc warnings for kernel test robot
  apparmor: Fix unaligned memory accesses in KUnit test
  apparmor: Fix 8-byte alignment for initial dfa blob streams
  apparmor: shift uid when mediating af_unix in userns
  apparmor: shift ouid when mediating hard links in userns
  apparmor: make sure unix socket labeling is correctly updated.
  apparmor: fix regression in fs based unix sockets when using old abi
  apparmor: fix AA_DEBUG_LABEL()
  apparmor: fix af_unix auditing to include all address information
  apparmor: Remove use of the double lock
  apparmor: update kernel doc comments for xxx_label_crit_section
  apparmor: make __begin_current_label_crit_section() indicate whether put is needed
  ...
2025-08-04 08:17:28 -07:00