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24044 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
b1fa457bdd |
cgroup: Fixes for v7.3-rc4
- A cpuset partition could claim CPUs an ancestor partition already held exclusively. Restore the rejection an earlier change had turned into a warning. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarjXAw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGctVAQD3UPz2537MRkVZtcy4QfgyObMRXEaTGEBBJV+g ougCLgD/ZOVFjyK/bD3wXgtpiRZq9NbL+VvPQfrOjqz3Q/wVww8= =Vyrg -----END PGP SIGNATURE----- Merge tag 'cgroup-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fix from Tejun Heo: - A cpuset partition could claim CPUs an ancestor partition already held exclusively. Restore the rejection an earlier change had turned into a warning. * tag 'cgroup-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Return PERR_NOCPUS in remote_partition_enable() on subpartitions_cpus conflict |
||
|
Hui Peng
|
31c88350b7 |
cgroup/cpuset: Return PERR_NOCPUS in remote_partition_enable() on subpartitions_cpus conflict
When a remote partition is created underneath an existing local partition via a non-partition (PRS_MEMBER) intermediate cgroup, update_prstate() sees parent->partition_root_state == PRS_MEMBER and calls remote_partition_enable(). Commit |
||
|
Linus Torvalds
|
efb27d4767 |
Probes fixes for v7.3-rc4:
- kprobes: Fix permanent hang when flushing the kprobe optimizer Fix a deadlock when disabling kprobe optimization via sysctl or debugfs where flushers hung waiting for optimizer_completion. Replaced the completion with an optimizer_passes counter and wait_var_event_mutex() under kprobe_mutex so concurrent flushers can wait and wake up safely. - fprobe: Terminate the fgraph_data list when the reservation is not filled Fix an issue where unused shadow stack data left uninitialized by fprobe_fgraph_entry() was misparsed as stale fprobe headers on return. Explicitly write a zero word to terminate the list and update read_fprobe_header() to handle the zeroed slot properly. - ftracetest: Fix unique symbol check in kprobe_non_uniq_symbol.tc Fix false test failures in kprobe_non_uniq_symbol.tc on architectures like s390 where a symbol exists once in core kernel but also in modules. Anchor the /proc/kallsyms search regex to the end of the line so that module symbols are not incorrectly counted. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmq3llUbHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bAhEH/0EAamjv7/EDUoUq+BOO a2gnlYqvr+zcrDVQLNgiYbvTRDfIFPOdB2LpY7Rguee3747qeL7kkNATD10WFr1F 5lXe5LaLncNIrvHDdtcT5eER5ePAuSDMSL5CwnJrRvXJw42iFsqegZ07nrvc9HFS 5zw7Ej9VnFJFxeXIY3J4U92wkntLJ3JhsNheomOtQmEZU1g5ZPAbdq0icNrC3CAb FTezYk60VG0CT/gNTSd8JFnI4P5vKlZpkFFCLLMmptW4yQU9+ZdT55JRgY7wJ8ye w5rLBTRJrFhDgNAjoehMkoAtxik3dKgede7qlwxUk0sv+gwXssw28b5zabRBJgee XQ8= =cHwO -----END PGP SIGNATURE----- Merge tag 'probes-fixes-v7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probe fixes from Masami Hiramatsu: - kprobes: Fix permanent hang when flushing the kprobe optimizer Fix a deadlock when disabling kprobe optimization via sysctl or debugfs where flushers hung waiting for optimizer_completion. Replaced the completion with an optimizer_passes counter and wait_var_event_mutex() under kprobe_mutex so concurrent flushers can wait and wake up safely. - fprobe: Terminate the fgraph_data list when the reservation is not filled Fix an issue where unused shadow stack data left uninitialized by fprobe_fgraph_entry() was misparsed as stale fprobe headers on return. Explicitly write a zero word to terminate the list and update read_fprobe_header() to handle the zeroed slot properly. - ftracetest: Fix unique symbol check in kprobe_non_uniq_symbol.tc Fix false test failures in kprobe_non_uniq_symbol.tc on architectures like s390 where a symbol exists once in core kernel but also in modules. Anchor the /proc/kallsyms search regex to the end of the line so that module symbols are not incorrectly counted. * tag 'probes-fixes-v7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobes: Fix permanent hang when flushing the kprobe optimizer fprobe: Terminate the fgraph_data list when the reservation is not filled selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc |
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|
Linus Torvalds
|
eff8d2791c |
Arm:
- Invalidate the ITS translation cache when the guest changes the
base address of the ITS tables (Fuad Tabba)
- Skip saving ITS devices with device IDs that are out-of-bounds
rather than failing the entire ITS save ioctl (Fuad Tabba)
- Close race between VM teardown and invalidations of nested MMUs
when handling MMU operations that are allowed to block
(Lorenzo Stoakes)
- Various fixes for the handling of the host's untrusted SVE
configuration in pKVM (Fuad Tabba)
- Make sure that empty SMCCC ranges based at 0 are rejected by the
kvm_smccc_set_filter() (Karl Mehltretter)
- Revoke the host mapping for pKVM's private stack pages, along
with a new sanity check that all mappings in the hyp's private
VA range have been correctly marked as hyp-owned (Fuad Tabba)
- Lifetime fixes for the array of shadow stage-2 MMUs, ensuring that
concurrent vCPU initialization cannot relocate in-use MMUs. Defer
the freeing of shadow stage-2 MMUs to the point that no other users
(e.g. MMU notifier) could reference them (Marc Zyngier)
- Drop useless WARN when rejecting an unsupported ioctl for pKVM
(Fuad Tabba)
- Fix the steal_time selftest to install correctly-sized mappings for
non-4K hosts (Sebastian Ott)
- Correct mapping of fine-grained trap for GCSPOPX instruction
(Mark Brown)
- Fix KVM_BUG_ON() due to missing handling of DBGBXVR<n> from 32-bit
guests (Karl Mehltretter)
RISC-V:
- Synchronize hrtimer during VCPU teardown.
- Fix the conversion between vsip and hvip values.
- Serialize IMSIC attributes with vCPU migration.
- Release unused page after MMU invalidation.
- Propagate interrupted G-stage faults to KVM user-space as EINTR.
- Fix nested acceleration hfence entry update order.
- Fix sdata leak and stale snapshot_addr in snapshot_set_shmem.
- Preserve firmware counter value across PMU counter stop/start.
- Report PMU snapshot write failure to the guest.
- Fix perf-backed counter accounting across PMU stop and read.
- Correctly propagate error of a hart status SBI call.
s390:
- Ensure that accesses through kvm_arch_set_irq_inatomic mark as dirty
the pages that contain indicator and summary bits.
- Fix compile warning for kvm_s390_update_cmma_dirty().
- Fix incorrect propagation of ENOENT from _gaccess_shadow_fault() to
userspace.
- Move s390_kvm_mmu_commit_memory_region() into
s390_kvm_mmu_prepare_memory_region() so that it can fail instead of WARN.
- Add missing srcu in kvm_s390_set_irq_state().
- Fix potential races in storage functions.
- Fix race in _destroy_pages_crste().
- Fix issues in the handling of KVM interrupt and page resources, when a
queue that is assigned to a mediated device (mdev) is removed from the
host's AP configuration.
- Fix loop condition in uv_find_secrets.
- Prevent potential out-of-bounds read.
x86:
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
- Fix a memory leak and a cache maintenance issue related to doing intra-host
migration on an SEV guest.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Arm:
- Invalidate the ITS translation cache when the guest changes the
base address of the ITS tables (Fuad Tabba)
- Skip saving ITS devices with device IDs that are out-of-bounds
rather than failing the entire ITS save ioctl (Fuad Tabba)
- Close race between VM teardown and invalidations of nested MMUs
when handling MMU operations that are allowed to block (Lorenzo
Stoakes)
- Various fixes for the handling of the host's untrusted SVE
configuration in pKVM (Fuad Tabba)
- Make sure that empty SMCCC ranges based at 0 are rejected by the
kvm_smccc_set_filter() (Karl Mehltretter)
- Revoke the host mapping for pKVM's private stack pages, along with
a new sanity check that all mappings in the hyp's private VA range
have been correctly marked as hyp-owned (Fuad Tabba)
- Lifetime fixes for the array of shadow stage-2 MMUs, ensuring that
concurrent vCPU initialization cannot relocate in-use MMUs. Defer
the freeing of shadow stage-2 MMUs to the point that no other users
(e.g. MMU notifier) could reference them (Marc Zyngier)
- Drop useless WARN when rejecting an unsupported ioctl for pKVM
(Fuad Tabba)
- Fix the steal_time selftest to install correctly-sized mappings for
non-4K hosts (Sebastian Ott)
- Correct mapping of fine-grained trap for GCSPOPX instruction (Mark
Brown)
- Fix KVM_BUG_ON() due to missing handling of DBGBXVR<n> from 32-bit
guests (Karl Mehltretter)
RISC-V:
- Synchronize hrtimer during VCPU teardown
- Fix the conversion between vsip and hvip values
- Serialize IMSIC attributes with vCPU migration
- Release unused page after MMU invalidation
- Propagate interrupted G-stage faults to KVM user-space as EINTR
- Fix nested acceleration hfence entry update order
- Fix sdata leak and stale snapshot_addr in snapshot_set_shmem
- Preserve firmware counter value across PMU counter stop/start
- Report PMU snapshot write failure to the guest
- Fix perf-backed counter accounting across PMU stop and read
- Correctly propagate error of a hart status SBI call
s390:
- Ensure that accesses through kvm_arch_set_irq_inatomic mark as
dirty the pages that contain indicator and summary bits
- Fix compile warning for kvm_s390_update_cmma_dirty()
- Fix incorrect propagation of ENOENT from _gaccess_shadow_fault() to
userspace
- Move s390_kvm_mmu_commit_memory_region() into
s390_kvm_mmu_prepare_memory_region() so that it can fail instead of
WARN
- Add missing srcu in kvm_s390_set_irq_state()
- Fix potential races in storage functions
- Fix race in _destroy_pages_crste()
- Fix issues in the handling of KVM interrupt and page resources,
when a queue that is assigned to a mediated device (mdev) is
removed from the host's AP configuration
- Fix loop condition in uv_find_secrets
- Prevent potential out-of-bounds read
x86:
- Fix a brown paper bag bug where KVM would incorrectly treat Intel
PMU MSRs as valid on AMD
- Fix a regression in the hardware disable selftest where it checked
the wrong macro when detecting glibc support (breaks at least musl)
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is
especially important for KVM_BUG_ON() flows, which often guard more
dangerous bugs
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a
bug where KVM would let userspace run a broken setup with stale
vmcs12 pages
- Fix a class of bugs where KVM would fail to fill kvm_run exit
fields if getting nested pages failed
- Treat reserved entries in the memory attributes xarray as "no
attributes", to fix false positives when checking for mixed
attributes
- Fix memcg accounting for the memory attributes xarray (the xarray
library subtly requires the xarray to be configured for accounting
upfront; the gfp flags taken at runtime are used only rarely)
- Don't pre-reserve xarray entries when storing empty attributes, as
storing NULL must not require memory allocation (KVM and other
subsystems heavily rely on this behavior)
- Fix a memory leak and a cache maintenance issue related to doing
intra-host migration on an SEV guest"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (54 commits)
KVM: SEV: Do cache maintenance on the source VM during intra-host migration
KVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes
KVM: Ensure memory attributes xarray nodes are accounted to the caller's memcg
KVM: Don't treat reserved xarray entries as having memory attributes
KVM: x86: Fill kvm_run exit fields in common get_nested_state_pages() error paths
KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails
KVM: arm64: Fix AArch32 DBGBXVR<n> handling
KVM: arm64: Fix FGT mapping for HFGITR_EL2.nGCSEPP
KVM: selftests: fix steal_time for arm64 with host page size > 4K
KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode
KVM: arm64: nv: Delay freeing of shadow S2 structures until VM destruction
KVM: arm64: nv: Fix life cycle of the nested_mmus array
KVM: arm64: Check every private mapping is hyp-owned at pKVM init
KVM: arm64: Move the private VA allocation cursor to __io_map_next
KVM: arm64: Match hyp text by physical address in fix_host_ownership()
KVM: arm64: Transfer the hyp stack pages out of the host stage-2
KVM: arm64: selftests: Test empty SMCCC filter range at base 0
KVM: arm64: Return -EINVAL for an empty SMCCC filter range at base 0
KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
...
|
||
|
Paolo Bonzini
|
c2f24f140c |
KVM fixes for 7.3-rcN
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
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Merge tag 'kvm-x86-fixes-7.3-rc5' of https://github.com/kvm-x86/linux into HEAD
KVM fixes for 7.3-rcN
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
|
||
|
Linus Torvalds
|
aa98230e41 |
vfs-7.3-rc5.fixes
Please consider pulling these changes from the signed vfs-7.3-rc5.fixes tag.
Thanks!
Christian
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Merge tag 'vfs-7.3-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Revert "put_mnt_ns(): leave mounts connected". This allows the
creation of reference count cycles in a very trivial way. We can't
bring this in until we have fixed the underlying cause
- vfs: Don't create the private nullfs instance for kthreads under
namespace_sem to avoid false lockdeps complaints
- binfmt_misc:
- Copy the name into a stack buffer and look up the copy in
bpf_binprm_select_interp()
- bpf_binprm_set_interp() and bpf_binprm_set_interp_arg(): Check
the private copy instead so the string that gets staged is the
kstring that was checked
- netfs:
- Make netfs_read_gaps() use separate sink folios rather than one
reused sink folio to discard unwanted data so that cifs checksum
checking sees all the data that was fetched
- Trim reads down to i_size so afs symlinks read correctly from the
cache
- Wrap the direct mempool ->alloc() calls the GFP_KERNEL paths make
in alloc_hooks() via a new mempool_alloc_noreserve() helper
- iov_iter: Use iov_iter_alignment() for the start and length check
added to iov_iter_extract_bvecs() this cycle. It used iter_iov_addr()
and iter_iov_len() which are only valid for ITER_UBUF and ITER_IOVEC
iterators
- super: Make iterate_supers_type() deletion-safe
- inode: Stop evict_inodes() from rescanning the same inodes
- writeback: Bound the cleanup_offline_cgwb() rescans
- ntfs3: Use d_instantiate_new() in ntfs_create_inode()
- ovl: Fix a use-after-free in the ovl_do_mkdir() debug print
- dcache: Unpoison the inline name buffer in __d_alloc() for KMSAN
- autofs: Fix a pipe file reference leak in autofs_kill_sb()
- bpf: Drop the path_unlink and path_rmdir hooks from the list of hooks
for which the verifier rewrites bpf_{set,remove}_dentry_xattr() to
the _locked variants
- squashfs: Range check the xz dictionary size before shifting by it
- selftests: Add the missing eventfd, open_tree_ns, openat2 and xattr
filesystems selftests to TARGETS and drop the stale openat2 entry
left behind when those tests moved
* tag 'vfs-7.3-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs: Fix missing alloc tagging of direct mempool allocations
bpf: fs/xattr: don't assume the inode is locked in path_unlink/path_rmdir
autofs: fix sbi->pipe file reference leak in autofs_kill_sb()
dcache: unpoison the inline name buffer in __d_alloc()
ovl: fix UAF in ovl_do_mkdir() debug print
super: make iterate_supers_type() deletion-safe
Revert "put_mnt_ns(): leave mounts connected"
Revert "selftests/filesystems: add mntns cleanup test"
binfmt_misc: fix racy checks in bpf set_interp kfuncs
binfmt_misc: fix OOB read in bpf_binprm_select_interp()
fs: don't create the private nullfs mount under namespace_sem
writeback: bound cleanup_offline_cgwb() rescans by rotating scanned inodes
fs: avoid repeated scans in evict_inodes()
netfs, afs: Fix symlink reading
netfs: Fix netfs_read_gaps() to use separate sink folios
squashfs: Add dictionary size range check to prevent shift-out-of-bounds
fs/ntfs3: use d_instantiate_new() in ntfs_create_inode() and murder syzbot's "WARNING in do_new_mount" saga
selftests/filesystems: fix missing and stale TARGETS entries
block: Fix start and length check added to iov_iter_extract_bvecs()
|
||
|
Linus Torvalds
|
ee9c669f9b |
sched_ext: Fixes for v7.3-rc4
- A task reenqueued while its dispatch was still completing had its queued state clobbered by the dispatcher, dropping every later dispatch of the task. Wait for the in-flight dispatch to settle first. - A wakeup activation on another CPU marked the destination runqueue as mid-wakeup, stranding a pending local reenqueue. If the scheduler was unloaded first, the stale request pointed into freed memory that the next scheduler dereferenced. - ops.dequeue() ran with the source dispatch queue's lock held, so a scheduler iterating that queue from the callback deadlocked the CPU. - Schedulers with their own CPU ID mapping had no way to learn a task's initial CPU mask and rebuilt it themselves, which went wrong across sub-scheduler enable and re-home. Pass it to ops.enable(). - A bypass dispatch event counter missed the dispatches made by the end-of-dispatch fallback and under-reported. - Selftests for the dequeue locking and initial mask changes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarWSLQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGY+sAP9y6nJh6vIvFh/X9FlJtWlNo0mncOKhy93E8jii 8CKnPQEAhvX3+Gcdl+imTh4Z915kdsEByBjTTPPOXnQxI8BKUAY= =VhBF -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - A task reenqueued while its dispatch was still completing had its queued state clobbered by the dispatcher, dropping every later dispatch of the task. Wait for the in-flight dispatch to settle first - A wakeup activation on another CPU marked the destination runqueue as mid-wakeup, stranding a pending local reenqueue. If the scheduler was unloaded first, the stale request pointed into freed memory that the next scheduler dereferenced - ops.dequeue() ran with the source dispatch queue's lock held, so a scheduler iterating that queue from the callback deadlocked the CPU - Schedulers with their own CPU ID mapping had no way to learn a task's initial CPU mask and rebuilt it themselves, which went wrong across sub-scheduler enable and re-home. Pass it to ops.enable() - A bypass dispatch event counter missed the dispatches made by the end-of-dispatch fallback and under-reported - Selftests for the dequeue locking and initial mask changes * tag 'sched_ext-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Count SCX_EV_SUB_BYPASS_DISPATCH in the dispatch fallback selftests/sched_ext: Check the cmask cid-form ops.enable() receives sched_ext: Pass the initial cmask to cid-form ops.enable() selftests/sched_ext: Test that ops.dequeue() can iterate the consumed DSQ sched_ext: Don't run ops.dequeue() with a DSQ lock held sched_ext: Derive SCX_RQ_IN_WAKEUP from the core enqueue flags sched_ext: Wait for SCX_OPSS_DISPATCHING before reenqueueing a task |
||
|
Linus Torvalds
|
e8dfd03a1c |
cgroup: Fixes for v7.3-rc4
- With local event accounting, a fork rejected by the pids controller updated pids.events without notifying its pollers. - A cgroup selftest failed to compile with fortification enabled because an O_TMPFILE open lacked its mode argument. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarWSKg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGYoiAQD6JUCqDjv2Hr1YeMFlsoYVQZ7tNmljVnPD2tZ6 9WmD/AEAotdlmzM8egOuDqAi2s+UMJPm8vCZuxVzewiGqhYELgk= =0Ljp -----END PGP SIGNATURE----- Merge tag 'cgroup-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: - With local event accounting, a fork rejected by the pids controller updated pids.events without notifying its pollers - A cgroup selftest failed to compile with fortification enabled because an O_TMPFILE open lacked its mode argument * tag 'cgroup-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/pids: Restore pids.events notifications in local mode selftests: cgroup: give the O_TMPFILE open in get_temp_fd() a mode |
||
|
Linus Torvalds
|
f2c53ea949 |
Including fixes from Bluetooth, NFC and Netfilter.
Every week in this release is record-setting for number of posted
patches. It doesn't seem like we're creating any regressions with
all these fixes, 3 Fixes tags here point to 7.2 commits but none
are true regression fixes. We're trying to keep the count down,
nonetheless.
Previous releases - regressions:
- net: don't require the hwtstamp NDOs when a PHY provides timestamping
- ipv6: fix dst leak for uncached routes
- vrf: stop corrupting skb->csum when capturing CHECKSUM_COMPLETE
packets
Previous releases - always broken:
- packet: use ubuf_info completion for TX_RING packets
- arp: terminate device name before lookup
- ipv6: do not let ipv6_find_hdr() return an offset past the packet end
- udp: remove a disconnected socket from the 4-tuple hash table
- sctp: discard the rest of the packet on a stale-cookie error
- eth: mlx5: Bridge, fix remaining switchdev ownership gaps on merged
eswitch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Bluetooth, NFC and Netfilter.
Every week in this release is record-setting for number of posted
patches. It doesn't seem like we're creating any regressions with all
these fixes, three 'Fixes' tags here point to 7.2 commits but none are
true regression fixes. We're trying to keep the count down,
nonetheless.
Previous releases - regressions:
- net: don't require the hwtstamp NDOs when a PHY provides
timestamping
- ipv6: fix dst leak for uncached routes
- vrf: stop corrupting skb->csum when capturing CHECKSUM_COMPLETE
packets
Previous releases - always broken:
- packet: use ubuf_info completion for TX_RING packets
- arp: terminate device name before lookup
- ipv6: do not let ipv6_find_hdr() return an offset past the packet
end
- udp: remove a disconnected socket from the 4-tuple hash table
- sctp: discard the rest of the packet on a stale-cookie error
- eth: mlx5: Bridge, fix remaining switchdev ownership gaps on merged
eswitch"
[ And lots of other random network driver fixes ]
* tag 'net-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (189 commits)
tcp: prevent collapsing skbs across boundary in rtx queue
vlan: ensure sufficient headroom in vlan_dev_hard_header()
net/sched: sch_teql: fix shadowed err in __teql_resolve()
bridge: check llc_mac_hdr_init() return value in br_send_bpdu()
llc: fix skb UAF and leaks on llc_mac_hdr_init() failure
llc: reserve device headroom for allocated frames
gve: DQO: reject TSO packets with an out of range MSS
gve: fix TX drop when GSO MSS is too small for hw
gve: DQO: fix header length used by gve_can_send_tso() for UDP GSO
net: flush skb_defer_nodes in dev_cpu_dead()
net: ethernet: stmmac: dwmac-rk: fix bulk clock leak when the PHY clock fails
af_packet: fix integer overflow in prb_calc_retire_blk_tmo()
tipc: Fix a data race on mon->peer_cnt in mon_timeout()
net: phy: intel-xway: workaround 100BASE-TX Link-Up issue
net/smc: fix UAF on lgr list traversal in smcr_port_err()
net/rds: size a connection's path set by the transport it ends up with
nfp: hold IPsec RX state under the XArray lock
net: ena: fix MMIO read buffer leak on probe failure
net: ena: fix PHC cleanup on probe failure
net/sched: act_ct: fix helper UAF due to extensions realloc
...
|
||
|
Linus Torvalds
|
415f204422 |
Landlock fix for v7.3-rc5
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCarVI0xAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSEVgA+gNbC9CVCbCo0oufZbVpQwlwtuuEKEVpvxZx q7oFYKCsAP9svCujGCXRHOmWhAAwe+wpXNb43l8coFn+pCfA8x3fCw== =NOli -----END PGP SIGNATURE----- Merge tag 'landlock-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull Landlock fixes from Mickaël Salaün: "This mainly fixes the Landlock tracepoint support merged this cycle so that denial and rule events report the intended policy context, whether through tracefs or BTF-visible callbacks. The size of this all is mainly from propagating the corrected contract through event definitions and producers, adding new tests for the reported context, and updating the documentation. Also improve annotation and fix a GCC 16 build warning" * tag 'landlock-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: landlock: Widen ruleset versions to 64 bits landlock: Add counted_by in landlock_domain landlock: Fix tracepoint contract documentation selftests/landlock: Test network denial context selftests/landlock: Test filesystem denial blockers landlock: Report the effective signal number landlock: Report the actual ptrace tracer landlock: Fix network denial trace context landlock: Fix rule tracepoint context landlock: Fix filesystem denial blocker reporting landlock: Fix tracepoint fixed-width type names landlock: Work around gcc-16 -Wuninitialized warning |
||
|
Jakub Kicinski
|
33a61f0923 |
Included fixes:
* add selftest coverage for peer VPN address validation * reject multicast, broadcast and loopback peer VPN addresses, which can never identify a peer * reject MP peers left with no usable VPN address, as they can never be selected for TX * reject duplicate peer VPN addresses, which made peer lookup return an arbitrary peer * fix stale entry left in the VPN address hashtable when an address is cleared * fix torn IPv6 address read on lockless TX when the unusable local source is cleared in place * fix torn IPv6 address read on lockless TX when a new local endpoint is learned in place * fix dst cache being populated with a route resolved from an already replaced bind * fix stale route being reused after the socket mark or UDP source port changed * fix bogus validation of an unspecified local source address, which must instead be left to route source autoselection * fix IPv6 link-local peer endpoints losing their scope id when configured via netlink, breaking route lookup -----BEGIN PGP SIGNATURE----- iJEEABYIADkWIQQr0db7q+Rc7Zog28Fc8QQzwdnOtwUCarECxxsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQXPEEM8HZzrcvTAEA/r3oFnZ4EOtiOyA2OpZ/ Iya+WAJ7LShj7tLymzujMe8BAIH6J2RyrWXnfDFvtSG8HGDEe4EBzVpP56tX0ZVn xc0N =fg0G -----END PGP SIGNATURE----- Merge tag 'ovpn-net-20260921' of https://github.com/OpenVPN/ovpn-net-next Antonio Quartulli says: ==================== Included fixes: * add selftest coverage for peer VPN address validation * reject multicast, broadcast and loopback peer VPN addresses, which can never identify a peer * reject MP peers left with no usable VPN address, as they can never be selected for TX * reject duplicate peer VPN addresses, which made peer lookup return an arbitrary peer * fix stale entry left in the VPN address hashtable when an address is cleared * fix torn IPv6 address read on lockless TX when the unusable local source is cleared in place * fix torn IPv6 address read on lockless TX when a new local endpoint is learned in place * fix dst cache being populated with a route resolved from an already replaced bind * fix stale route being reused after the socket mark or UDP source port changed * fix bogus validation of an unspecified local source address, which must instead be left to route source autoselection * fix IPv6 link-local peer endpoints losing their scope id when configured via netlink, breaking route lookup * tag 'ovpn-net-20260921' of https://github.com/OpenVPN/ovpn-net-next: selftests: ovpn: validate peer VPN addresses ovpn: reject invalid peer VPN addresses ovpn: reject multipeer peers without VPN addresses ovpn: reject duplicate peer VPN addresses ovpn: always unhash old VPN addresses before rehashing ovpn: replace bind when clearing stale local source ovpn: replace bind when learning local endpoint ovpn: validate peer state before caching UDP dst ovpn: track UDP socket route key for peer dst cache ovpn: skip UDP source validation for unspecified addresses ovpn: preserve IPv6 scope id for netlink peer endpoints ==================== Link: https://patch.msgid.link/20260921102215.3599702-1-antonio@openvpn.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
5fc5768c7c |
bpf-fixes
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Fix bpf_skb_change_tail() to drop the checksum offload instead of
rejecting the trim of CHECKSUM_PARTIAL skbs (Daniel Borkmann)
- Add KF_PERFMON kfunc flag and require CAP_PERFMON for kfuncs that
read arbitrary memory and for untrusted read-only memory reads
(Daniel Borkmann)
- Clear scalar delta on narrowing stack spill (Daniel Borkmann)
- Set up the frame pointer for the exception callback in arm64 JIT, and
zero-fill other CPUs when BPF_F_CPU update creates a per-cpu hash
element (Donggeun Yoo)
- Various fixes (Emil Tsalapatis):
- Fix bounds check underflow for skb-backed dynptrs
- Fix rx_queue_mapping context access code generation in bpf_sock
- Reject packet pointer arguments to subprogs that may mutate the
packet
- Reject ALU instructions that see arena and non-arena operands on
different code paths
- Fix copied_seq double-counting on sockmap self-redirect
(Geliang Tang)
- Fix divide-by-zero in btf_struct_walk() on a flexible array of
zero-sized elements, fix out-of-bounds read of rtt_min in sock_ops
(Jiayuan Chen)
- Fix bpf_sock_destroy() out-of-bounds read of sk_protocol on TIME_WAIT
and request socks, and sleeping under RCU when destroying a listener
with pending children (Jiayuan Chen)
- Fix JEQ/JNE with immediate operand in MIPS32 JIT and missing zero
extension of BSWAP 16/32 in MIPS64 JIT (Johan Almbladh)
- Avoid soft lockup in htab lookup[_and_delete] batch operations on
large maps (Jose Fernandez)
- Various fixes (Kumar Kartikeya Dwivedi):
- Verify global subprogs in each sleepability context they are
called from
- Make post-verification instruction rewrites killable
- Preserve packet pointer displacement in regsafe()
- Apply CO-RE relocations before subprogram validation, restrict
CO-RE poisoning to relocatable instructions, and reject truncated
ldimm64 CO-RE relocations in libbpf
- Assign lock identity to callback map values
- Compare stack frames in regs_exact()
- Bound ownership depth through local kptrs and graph roots
- Fix u32 overflow in map batch operations when the map size exceeds
4GB (Masoud Aghasi)
- Fix UAF in bpf memalloc due to concurrent consumption of ttrace lists
in alloc_bulk() (Pu Lehui)
- Allow gotox as the terminal instruction of a program or a subprogram
(Siddharth Chintamaneni)
- Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL, skip unsettled links
in link iterator, and reject dev-bound-only programs on other devices
(Weiming Shi)
- Reject non-negative stack offsets in stack_slot_obj_get_spi()
(Xu Yunxiang)
- Check params size before reading reserved fields in
bpf_crypto_ctx_create() (Yuqi Xu)
- Reject max_entries > INT_MAX in sock_map_alloc() (Zhao Gongyi)
- Use a 32-bit compare in xsk_map_gen_lookup() (Zhiling Zou)
- Use kvfree() in xdp_test_run_teardown() (Zhixing Chen)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (58 commits)
selftests/bpf: Test per-cpu initialization of a BPF_F_CPU created element
bpf: Zero-fill other CPUs when BPF_F_CPU creates a per-cpu hash element
bpf: Fix BSWAP 32 and 16 on MIPS64
bpf: Fix immediate JMP JEQ/JNE on MIPS32
bpf: Reject dev-bound-only programs on other devices
bpf, sockmap: Reject max_entries > INT_MAX in sock_map_alloc
selftests/bpf: Test for mixed arena/nonarena code paths
bpf: Prevent variable arena/non-arena register contents
selftests/bpf: Test rejection of pkt args to mutating subprogs
bpf: Reject pkt arguments in mutating subprogs
selftests/bpf: Add selftests for rx_queue_mapping context access
bpf: Fix bpf_sock context code generation
selftests/bpf: Test dynptr slices past end of skb
bpf: Fix bounds check for skb-backed dynptrs
selftests/bpf: Reject iterator destruction through fp+0
bpf: Reject non-negative offsets in stack_slot_obj_get_spi()
bpf: Check params size before reading reserved fields
selftests/bpf: Check local object ownership depth
bpf: Bound ownership depth through local kptrs and graph roots
selftests/bpf: Cover frame changes in bounded loops
...
|
||
|
Donggeun Yoo
|
3422808f4e
|
selftests/bpf: Test per-cpu initialization of a BPF_F_CPU created element
The existing cpu_flag subtests always prime a key with BPF_F_ALL_CPUS before any BPF_F_CPU write, so the create path is never covered. Add a subtest that creates the element with BPF_F_CPU on a map with max_entries 1, so the key can only reuse the element the previous key released, and check that the CPUs the update did not name read back zero. Run it for PERCPU_HASH preallocated and BPF_F_NO_PREALLOC, whose per-cpu areas come from different allocators, and for LRU_PERCPU_HASH. Under BPF_F_NO_PREALLOC the reuse is only guaranteed on the cpu that ran the delete, so pin the thread across the pair, and name a cpu other than that one in map_flags. Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260924102321.2120434-3-donggeunyoo.kernel@gmail.com |
||
|
Jakub Kicinski
|
90c2e97ff8 |
NFC fixes for net 7.3-rc5
Mostly security fixes. fix use-after-free in nfc_get_local_general_bytes llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm() llcp: Fix race condition in accept_queue lifecycle llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc() llcp: fix -ENOMEM on connect with zero-length service name llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() llcp: fix sdreq TLV list leak on parse/alloc/send failure llcp: fix slab-out-of-bounds reads when logging service names selftests/nci: Fix out-of-bounds store on thread join selftests: nci: Correct pthread_create return value check selftests: nci: Fix uninitialized family ID on missing attribute virtual_ncidev: Add missing ioctl compat handler nfcmrvl: validate helper command length before pull pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() port100: reject frames whose declared length exceeds the received data st21nfca: validate ISO15693 inventory length st21nfca: validate received frame size trf7970a: power down on startup RX gain failure Signed-off-by: David Heidelberg <david@ixit.cz> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE13oJz+7cK71TpwR0YAI/xNNJIHIFAmq0M08ACgkQYAI/xNNJ IHKXbw//cxnjUWiGiCWQKNGIrPQhO8xnxp29/adTfr5cpaCf9XS1Ah742JnsvV0J jiKwrV2VdhIedF0gCU51pfMdgV4VWWup2KQJbl820m8EaRmaKY6Spao/HxznnXtF H1JqYir2ISVADjX4hgQpqQIH2Vrz2o2QAkcsY+jjjydxxajmrrQh1SrJeEGom366 eDHAPmO9MTheJZ8gFXtuz4JdoipVWwY0Ta8D3mmVfgX/Jv5ESsPa4Ie4gQvQ1Vua 9bvYSgqrCGi4jtzEOxXNL1KfufjsbW9I64anwhxwjKJ+sL+/GJ0VfjN4Dgq9dnub H4dUJs9vUCMLY+Ns6Wo+2pJQ49Ults2SdVjH7kvdJ2FiUn+FvoPDLrQY00P/lhaB MPLrOCFaNVIzDKX98lxAzT/6c6xrNb5lTrkf17XHzcWa2H4eZj30pBaFfYrfiEH5 dlASR5aSy+GuXa8J/i7+jpQ+xl0GEg9tb0GJsvsWTDAftAl8/9CvcZ/TCbjKeb9L oGeStPcl/i+MB9wGZLOga8lox0DX5PMNkIcp+RXIjVvPDYiCBh1a3lWHtz65Qx4m 9VlNcIpUzN14VUTkWm1i29DVHpW8V5c/eLmoDHzBUFAVSVr2M0CkFwhPYOByqIzt lIcpLuTLXrAplzIFWMbi6gU8FSRAFX2I+vVr6rkgWIz2+QCPmYM= =lO2R -----END PGP SIGNATURE----- Merge tag 'nfc-7.3-rc5' of https://codeberg.org/linux-nfc/linux David Heidelberg says: ==================== NFC fixes for net 7.3-rc5 * tag 'nfc-7.3-rc5' of https://codeberg.org/linux-nfc/linux: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() nfc: llcp: fix slab-out-of-bounds reads when logging service names nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() nfc: llcp: fix -ENOMEM on connect with zero-length service name nfc: st21nfca: validate ISO15693 inventory length nfc: fix use-after-free in nfc_get_local_general_bytes nfc: trf7970a: power down on startup RX gain failure nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc() nfc: virtual_ncidev: Add missing ioctl compat handler selftests/nci: Fix out-of-bounds store on thread join selftests: nci: Fix uninitialized family ID on missing attribute nfc: llcp: Fix race condition in accept_queue lifecycle selftests: nci: Correct pthread_create return value check nfc: port100: reject frames whose declared length exceeds the received data nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm() nfc: st21nfca: validate received frame size nfc: nfcmrvl: validate helper command length before pull ==================== Link: https://patch.msgid.link/adeaccc1-cc04-4bb9-a28a-61a61d75ba14@ixit.cz Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Chris Gellermann
|
6be581aeff
|
selftests/nci: Fix out-of-bounds store on thread join
The NCI test collects the exit status of its helper threads by passing
the address of an int to pthread_join():
int status;
...
pthread_join(thread_t, (void **) &status);
pthread_join() stores a void pointer to the memory location. On 64-bit
systems, a void pointer is wider than an int, so the store overruns the
4 bytes of space allocated on the stack for the integer and corrupts the
adjacent stack. On our CHERI system, this caused a fault due to a
capability bounds violation.
Fix this by introducing a helper that joins a thread through a void
pointer and converts the result back to an integer, which is what the
helper threads return.
While here, also fix the logic in disconnect_tag() if the helper thread
creation failed. Previously, it would have joined a thread that was
never created when pthread_create() failed.
Fixes:
|
||
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Chaithanya Lagisetty
|
eda518d2cd
|
selftests: nci: Fix uninitialized family ID on missing attribute
get_family_id() walks the generic netlink CTRL_CMD_GETFAMILY reply
looking for the CTRL_ATTR_FAMILY_ID attribute and returns the parsed
value in the local variable "id". If the reply does not carry that
attribute, the parsing loop never assigns "id" and the function returns
an indeterminate stack value, which the caller stores in self->fid and
uses for subsequent netlink requests.
Initialize "id" to 0 so a missing attribute yields a deterministic
(invalid) family ID instead of a garbage value.
Fixes:
|
||
|
Lei Zhu
|
3d8afc5243
|
selftests: nci: Correct pthread_create return value check
The pthread_create() functions returns 0 on success and a positive value on
failure. Modify the return value check to correctly detect failure cases.
Fixes:
|
||
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Christian Brauner
|
76ebb69da6 |
Revert "selftests/filesystems: add mntns cleanup test"
This reverts commit
|
||
|
Emil Tsalapatis
|
a9e86dd9de
|
selftests/bpf: Test for mixed arena/nonarena code paths
Add a selftest to confirm the verifier rejects ALU operations that return arena or non-arena results depending on code path. Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260922172028.6269-9-emil@etsalapatis.com |
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Emil Tsalapatis
|
1ed69a54d3
|
selftests/bpf: Test rejection of pkt args to mutating subprogs
Add a selftests that ensures that PTR_TO_PACKET arguments can only be passed to subprogs that will never adjust the underlying packet memory, and are rejected otherwise. Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260922172028.6269-7-emil@etsalapatis.com |
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Emil Tsalapatis
|
dec0c209a6
|
selftests/bpf: Add selftests for rx_queue_mapping context access
Add tests to ensure the verifier properly tracks the 0 bit state and width of the rx_queue_mapping field read from struct sock. Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260922172028.6269-5-emil@etsalapatis.com |
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Emil Tsalapatis
|
4fd72eb9f1
|
selftests/bpf: Test dynptr slices past end of skb
Add a selftest to ensure dynptr slices cannot include past the end of the linear area of an skb. Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260922172028.6269-3-emil@etsalapatis.com |
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Linus Torvalds
|
fe2ec83746 |
hid-for-linus-2026092202
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEL65usyKPHcrRDEicpmLzj2vtYEkFAmqyY7EACgkQpmLzj2vt YEnprxAAofmpQUorlic97WALU2CamXN/hdzLGlra2RPW6eJyxQUlwqR8xcUptx3e 14OM5X4WDHfFD1lRFx7/flzn2J5h5CLXUWnNUp5DR7W0GLQSnSwOiuawfb5/Enkd aqhgsqC2nfEjxQ3iqdsY1MTASN/MEjolNU66tP31DQH5D+CGY6eZtivNwFHaHjJI Ps4/vr2nuddSCsXaWRKwdBQ9wMr8g+F7dIeI8vqAJlWg5IdN0tu3ClAuHUqMr6X3 zMHJ7xkkrRg7S40xeQsajDiPGRRWPkC6G3lrJ1OSFOP1IEMKT5dLLg5HB2wLwfzI Xzw4CJZiSIaNKyMQLQJcik8wZZbc60A2ulDscbpk9PLlr9nweBc+7wzVZ0mOQ6Lo rD2iYG7ROG684Jt5HVd9SPrIgjCDnlOXDBT9JLyPCw38eEysEHOdSlwA0CSJyR21 cD0UmfIUgFDXxR/omcPbZDVng8683eRR3W/Tj2XPBOyKZYF/JtnIsrbowIN2dmGe PKnsrtp2LW5/xiO/lTfEsiiHL8WoxtXj/Mwoq/NuZm4TvZ/C3nd3ZiEaL5UQeYYc AyTFOqBe4DoLauyS2M50gitvDpSBFS9i5xrjCukalpJGfTUlX8lQjU7kdH7O5rbh VlMjlYqPNSyd4Yo/nveqIS3ELrKGs5z3oDSxwSB05h1nCgn3dgo= =k0Hr -----END PGP SIGNATURE----- Merge tag 'hid-for-linus-2026092202' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID fixes from Jiri Kosina: - new device IDs/quirks (Logitech G502X, Elecom M-XT4DRBK, Steelseries Arctis 7, Asus Rog Z13 Folio, Lenovo Yoga Slim Gen 11) - fixes for various code issues found by LLMs * tag 'hid-for-linus-2026092202' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: selftests/hid: add unnumbered variant to the hid_bpf tests HID: bpf: fix __hid_bpf_hw_check_params report length selftests/hid: add define for commonly used buf size HID: amd_sfh: Validate PCI BAR size before mapping HID: elecom: fix bus type for M-XGL20DLBK HID: elecom: Add support for ELECOM M-XT4DRBK (018E) HID: corsair-void: Fix firmware event packet description HID: i2c-hid: Add i2c-hid-quirk-bad-input-size quirk for 0911:5288 device HID: hid-oxp: use cancel_delayed_work_sync() in remove HID: i2c-hid: add reset quirk for Lenovo Yoga Slim 7x Gen 11 keyboard HID: roccat: fix locking in roccat_connect() and roccat_disconnect() HID: steelseries: Add support for Arctis 7 (2018) HID: logitech-hidpp: Add support for G502 X Lightspeed USB mouse HID: fix semantic patch and improve its performance HID: alps: fix use-after-free on input2 registration failure HID: alps: unregister DualPoint Stick input device on remove HID: winwing: fix use-after-free in force feedback teardown HID: multitouch: Add report ID mismatch quirk for ASUS ROG Z13 Folio HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce() HID: quirks: add ALWAYS_POLL quirk for SDINNOVATION gaming keyboard |
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|
Linus Torvalds
|
a52a93358a |
14 hotfixes. 10 are cc:stable. 11 are for MM.
Five are DAMON fixes. One fixes an arm64 contpte bug where DAMON can write past the end of a page-table page, resulting in memory corruption and possible crashes. Two are hugetlb fixes. One fixes an mremap() address calculation bug which can panic x86-64. There's also a missing anon_vma publication barrier which can result in hung tasks, and a writeback fix to keep long cgroup writeback drains from delaying Tasks-RCU grace periods. The remainder are smaller fixes and maintenance changes. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCarHHNAAKCRDdBJ7gKXxA jhb7AP4yE/k7RrZC6zWg4M9ejI3fVlHI9+EG1mCLGiV57jZ4mAEA9LLSZryOD6Nc zsaeCtZhHcEdxW6EhO18hMfH4b7oJA0= =alhC -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2026-09-21-17-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM fixes from Andrew Morton: "14 hotfixes. 10 are cc:stable. 11 are for MM. Five DAMON fixes: one fixes an arm64 contpte bug where DAMON can write past the end of a page-table page, resulting in memory corruption and possible crashes. Two hugetlb fixes: one fixes an mremap() address calculation bug which can panic x86-64. There's also a missing anon_vma publication barrier which can result in hung tasks, and a writeback fix to keep long cgroup writeback drains from delaying Tasks-RCU grace periods. The remainder are smaller fixes and maintenance changes" * tag 'mm-hotfixes-stable-2026-09-21-17-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: update Xu Xin's email writeback: report a Tasks-RCU quiescent state per cgwb drain pass mm/damon/core: reset invalid quota->charge_target_from MAINTAINERS: add Baoquan and Baolin as MGLRU reviewers mm/rmap: fix missing barrier between anon_vma init and vma->anon_vma publish mm/hugetlb: preserve mremap address delta when skipping page tables mm/damon/core: fix unconditionally skip last region mm/damon/vaddr: avoid hw-driven pte updates during damon_hugetlb_mkold() mm/damon/core: allow esz to be set to zero mm/damon/ops-common: use a page-aligned address in damon_ptep_mkold() ocfs2: make ocfs2_calc_xattr_init() return void mailmap: update Haowen Bai's email address selftests/cgroup: account for zswap shrinker writeback mm/hugetlb: do not dissolve gigantic pages without runtime support |
||
|
Jakub Kicinski
|
a87529034b |
selftests: net: nl_nlctrl: check the op ids in the policy map
Validate that the op map in the policy dump is correct. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20260918222949.4190284-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Yuya Kusakabe
|
be581d6635 |
selftests: net: fix CONFIG_SYSCTL sort order in configs
Commit |
||
|
Xu Yunxiang
|
8244668cbb |
selftests/bpf: Reject iterator destruction through fp+0
Add a verifier regression test that initializes a numeric iterator at fp-8 and attempts to destroy it through fp+0. The verifier must reject the non-negative offset instead of treating it as the initialized stack slot. Check the offset diagnostic to ensure rejection happens at the stack object address check. The numeric iterator destroy operation is a no-op; this test checks verifier rejection and does not run the program. Signed-off-by: Xu Yunxiang <xyx2021@mail.ustc.edu.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Sun Jian <sun.jian.kdev@gmail.com> Link: https://lore.kernel.org/bpf/20260920210423.345636-3-xyx2021@mail.ustc.edu.cn |
||
|
Ralf Lici
|
0062080268 |
selftests: ovpn: validate peer VPN addresses
Exercise peer VPN address validation through both peer creation and update. Check missing, unspecified, duplicate, multicast, broadcast, loopback, IPv4-compatible and IPv4-mapped addresses. Temporarily configure a peer with both address families to verify that either family can be cleared while the other remains configured, then restore the original addresses before running the existing traffic tests. Extend ovpn-cli peer updates with an optional VPN address and preserve peer creation errors so the negative tests can observe rejected netlink requests. Signed-off-by: Ralf Lici <ralf@mandelbit.com> Signed-off-by: Antonio Quartulli <antonio@openvpn.net> |
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|
Linus Torvalds
|
156fa7417f |
x86 fixes:
- Reject the loading of a potentially problematic microcode version
on Intel Granite Rapids systems (Chang S. Bae)
- On FRED, reconstruct the proper #GP context for rejected INT
instructions, to fix a signal ABI regression (Matthew Schwartz)
- Add a test for this signal ABI regression the x86
self-test suite (Matthew Schwartz)
- Don't emit the new and not yet properly supported EGPR instructions
(%r16-%r31) on CONFIG_X86_NATIVE_CPU=y builds (Chang S. Bae)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Reject the loading of a potentially problematic microcode version
on Intel Granite Rapids systems (Chang S. Bae)
- On FRED, reconstruct the proper #GP context for rejected INT
instructions, to fix a signal ABI regression (Matthew Schwartz)
- Add a test for this signal ABI regression the x86
self-test suite (Matthew Schwartz)
- Don't emit the new and not yet properly supported EGPR instructions
(%r16-%r31) on CONFIG_X86_NATIVE_CPU=y builds (Chang S. Bae)
* tag 'x86-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build/64: Prevent native builds from generating EGPR use
selftests/x86: Check signal state for rejected software interrupts
x86/fred: Reconstruct the #GP context for rejected INT instructions
x86/microcode/intel: Reject problematic loading on Granite Rapids systems
|
||
|
Mickaël Salaün
|
c8dcb17205
|
selftests/landlock: Test network denial context
Network denial events now report the port from their one authoritative validated address through one signed field. Verify this value directly without inferring a source or destination role. Exercise a nonzero IPv4 TCP bind, an explicit-zero IPv4 UDP bind, a synthetic-zero IPv6 UDP autobind, and a family-only AF_UNSPEC UDP send. Require exactly one event with the exact policy blocker for each shape. The value -1 distinguishes a family-only address with no validated port from the two valid port-zero cases. Test coverage for security/landlock is 91.6% of 2625 lines according to LLVM 22. Cc: Günther Noack <gnoack@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: https://patch.msgid.link/20260918185036.608651-9-mic@digikod.net [mic: Add test coverage] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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|
Mickaël Salaün
|
c6dea91d84
|
selftests/landlock: Test filesystem denial blockers
Filesystem denial traces identify the policy change needed to allow a request, so require exact blocker values rather than merely nonempty output. Pin a READ_DIR denial to exactly one event with blockers=read_dir. Pin a REFER-only mount denial to EPERM and exactly one event with blockers=change_topology. The mount child retains CAP_SYS_ADMIN so Landlock is the only expected source of EPERM. This prevents a later capability failure from masking a Landlock regression; the trace-collecting parent remains unsandboxed. Cc: Günther Noack <gnoack@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: https://patch.msgid.link/20260918185036.608651-8-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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|
Mickaël Salaün
|
98b04ab00f
|
landlock: Fix network denial trace context
Network denial events report source and destination ports reconstructed
from audit data. Their zero values are ambiguous, and neither identifies
the complete endpoint that Landlock checked.
Carry the checked sockaddr and its signed length in a private trace-only
context. For an enabled event, validate the length and copy only the
initialized prefix into zeroed local storage. This prevents a typed BPF
program from reading uninitialized bytes while exposing the socket
family, socket, address, and length.
Replace the source and destination trace-record fields with one signed
port derived from the checked address. A value of -1 means that no port
was checked, zero is a valid port, and positive values use host
endianness. Bind blockers select the bind address; connect and send
blockers select the destination.
Cc: Günther Noack <gnoack@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Fixes:
|
||
|
Mickaël Salaün
|
1a985d3890
|
landlock: Fix rule tracepoint context
Name each event after the identity it reports. Add-rule events describe UAPI rule insertion, so rename them after LANDLOCK_RULE_PATH_BENEATH and LANDLOCK_RULE_NET_PORT. Check-rule events describe matches in internal rule trees, so rename them after LANDLOCK_KEY_INODE and LANDLOCK_KEY_NET_PORT. This remains accurate if multiple UAPI rule types share one lookup and stored rule. Keep denial event names based on filesystem and network families because they describe final access decisions. Use u64 for growable access masks passed by value to add-rule and check-rule typed BTF callbacks. CO-RE can relocate pointer-reached fields, but it cannot widen a scalar callback slot declared by a BPF program. Keep native access_mask_t for internal state and trace records. For add-rule callbacks, report the normalized per-call contribution passed to landlock_insert_rule() and expose the complete validated flags value. Put the ruleset and flags first as a common invocation prefix. This distinguishes duplicate and effective-zero additions without recovering arguments from saved syscall registers. Cc: Günther Noack <gnoack@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Fixes: |
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|
Jamal Hadi Salim
|
1e24c4f2ee |
selftests: tc-testing: add a lateral-drift hfsc classify-walk test
The classify-loop fix bounds a walk's non-descending hops, so the guard must not misfire on a legal walk that reaches its leaf through a level-drift lateral chain. Add a case that builds exactly that chain and asserts traffic still reaches the chain's own leaf. A lateral hop can only exist because a bind was legal when it was made and a later class add raised the target's level, so the setup binds each hop while the target is still a leaf and only then deepens it: bind 1:1 -> 1:2 while 1:2 is a leaf, add 1:20 under 1:2, add 1:3 and bind 1:2 -> 1:3 while 1:3 is a leaf, then add 1:30 and 1:31 under 1:3 and bind 1:3 -> 1:31. The walk root -> 1:1 -> 1:2 -> 1:3 -> 1:31 then takes two lateral hops and must reach leaf 1:31. The default class is 1:30, distinct from the asserted leaf, and the verify pattern is anchored to the 1:31 stats line, so neither a fall-through to the default nor a nonzero count on another class can satisfy the check. On the patched kernel the test passes; with the bound forced to zero the walk falls to the default and 1:31 stays idle, so the test fails. Reviewed-by: Victor Nogueira <victor@mojatatu.com> Tested-by: hybris <hybris@mojatatu.ai> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/QDISC-CTUU.v3.20260916184908@mojatatu.com.2 Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Tejun Heo
|
d781d1b78a |
selftests/sched_ext: Check the cmask cid-form ops.enable() receives
cid-form ops.enable() now hands the task's cmask to the scheduler and set_cmask() repeats it right after. Add a cid-form selftest that checks both against p->cpus_ptr, that they match each other, that the initial set_cmask() lands before set_weight() and before the task first becomes runnable, and that set_cmask() never precedes enable(), across class-switch enables, fork-path enables and live affinity changes. v2: Mismatch details returned through a caller-local struct instead of globals, alloc_words validated in the header check, loop bounded by nr_cids directly (Andrea Righi). Signed-off-by: Tejun Heo <tj@kernel.org> |
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Kumar Kartikeya Dwivedi
|
0288ed6748
|
selftests/bpf: Check local object ownership depth
Build raw program BTF records to exercise local object ownership without constructing a runtime chain deep enough to threaten the kernel stack. Cover referenced-kptr and percpu-kptr self-cycles, a two-type cycle, and a cycle mixing a graph root with a referenced kptr. The existing graph-only check accepts these local-kptr cycles and over-limit kptr chains; the fix rejects them with -ELOOP. Pin the eight-record depth boundary with a terminal plain object. Exercise both parent-first and child-first BTF orders, and a shared suffix reached first through a shorter path. These cases require cached suffix depths to be checked against the remaining depth budget on each path. Check list and rbtree chains of three, four, eight, and nine types. This covers the old graph-only depth boundary and the new explicit bound. The existing linked-list BTF tests still reject pure graph cycles and now accept the longer acyclic layouts previously rejected by the conservative rule. Although bpf_percpu_obj_new() currently rejects types with special fields, require the percpu cycle to fail at BTF load so future support cannot bypass the ownership bound. Keep a positive control for a non-owning kptr, which remains outside the ownership graph. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20260914132444.2564218-3-memxor@gmail.com |
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|
Kumar Kartikeya Dwivedi
|
bfc888f045
|
bpf: Bound ownership depth through local kptrs and graph roots
Program-allocated objects can own other local objects through referenced
kptrs. bpf_obj_free_fields() follows those pointers through
__bpf_obj_drop_impl() synchronously, before the object storage is freed
through RCU. A self-referential local kptr type therefore permits arbitrarily
deep object chains, and dropping the head can exhaust the kernel stack.
Long acyclic type chains have the same problem.
btf_check_and_fixup_fields() still assumes referenced kptrs only point to
kernel types and checks ownership through list and rbtree roots only. Its
existing rule is sufficient for graph-only cycles: the target of each graph
edge must contain a node, so every type in a cycle has both a root and a
node. The rule rejects such a type owning another root, breaking every
cycle. It also limits graph-only chains to three types, or two if the first
type contains a node, and conservatively rejects longer acyclic chains.
The missing local-kptr edges, rather than a missed graph-only cycle, are the
bug introduced by support for bpf_kptr_xchg() into local kptrs.
Replace that restriction with one bounded ownership walk covering graph
roots and local referenced kptrs. Run it after all BTF records have been
fixed up, reject cycles and paths deeper than eight record-bearing types,
and cache each type's suffix depth while checking it against the remaining
budget. This also permits the longer acyclic graph-only layouts rejected
by the old rule; update their existing BTF tests accordingly.
Keep the bound independent of MAX_CALL_FRAMES because recursive destruction
can run below a BPF call chain. A plain local pointee without special-field
metadata adds only a final non-recursing drop. Non-owning kptrs and
kernel-BTF kptrs do not recurse through local records and remain outside the
walk. Include local percpu-kptr edges too, although allocation of percpu
objects with special fields is currently forbidden, so that relaxing that
restriction cannot bypass the ownership bound.
btf_check_and_fixup_fields() continues to initialize graph_root.value_rec,
including for separately allocated map records. The ownership relationships
belong to immutable program BTF and only need validation at BTF load time.
Fixes:
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|
Kumar Kartikeya Dwivedi
|
0705878489
|
selftests/bpf: Cover frame changes in bounded loops
Add a finite loop whose progress is represented only by changing the frame number of a stack pointer. The loop first reads zero from the caller's stack, switches to the same offset in the callee's stack, and exits after reading one on its next iteration. Force frequent checkpoints so the test exercises infinite-loop detection, and check that the program returns one when run. Without the frameno comparison in regs_exact(), the program is rejected with an "infinite loop detected" diagnostic instead of loading successfully. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260919014213.1840880-3-memxor@gmail.com |
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|
Linus Torvalds
|
a077be4fde |
arm64 fixes for -rc4
- Fix hypercall arguments when resetting EL2 vectors during hibernation
- Fix hibernation with 52-bit capable kernels on machines without
52-bit addressing, similarly to the recent kexec fix
- Fix a bunch of clumsy codegen issues with our per-cpu accessors
- Fix MTE ptrace documentation to reflect the de-facto ABI behaviour
- Fix pthread_join() usage in MTE selftest
- Fix port selection in the Arm CMN PMU driver
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"In this batch we've got a couple of hibernation fixes, a couple of
minor MTE fixes, some per-cpu codegen fixes (which were found as part
of Mark's series adding preemptible this_cpu_*() operations) and a fix
for the Arm CMN PMU driver.
Summary:
- Fix hypercall arguments when resetting EL2 vectors during
hibernation
- Fix hibernation with 52-bit capable kernels on machines without
52-bit addressing, similarly to the recent kexec fix
- Fix a bunch of clumsy codegen issues with our per-cpu accessors
- Fix MTE ptrace documentation to reflect the de-facto ABI behaviour
- Fix pthread_join() usage in MTE selftest
- Fix port selection in the Arm CMN PMU driver"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Fix PTRACE_{PEEK,POKE}MTETAGS error documentation
kselftest/arm64: Fix size of thread_data values for pthread_join()
arm64: percpu: Fix LSE operations on {8,16}-bit types
arm64: percpu: Fix this_cpu_and() mask generation
arm64: percpu: Fix this_cpu_write() casting
arm64: hibernate: clone only the linear map that exists at runtime
perf/arm-cmn: Fix wp_dev_sel2 setting for multi-DTM configurations
arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc
|
||
|
Joshua Hahn
|
8c7fdc0b4c |
selftests/cgroup: account for zswap shrinker writeback
The test_no_invasive_cgroup_shrink selftest checks that when a cgroup has
zswapped out more memory than memory.zswap.max, it does not trigger
writeback for other cgroups. To do this, it compares the writeback count
in a control cgroup and makes sure that it is 0, and then checks the
writeback count in an aggressor cgroup who does expect to see writeback.
However, when the zswap shrinker is enabled, the victim cgroup can see
legitimate writebacks not triggered by the aggressor. In some Meta CI
tests, we have seen this failure mode happen.
Instead of checking that the victim cgroup has 0 writeback, compare the
writeback values before and after the aggressor runs and check that the
victim cgroup did not perform any additional writeback. Note that this
can still lead to probabilistic failures if writebacks take longer than
5 seconds, but this should fix the systematic failure case and make
"not ok test_no_invasive_cgroup_shrink" less likely.
Link: https://lore.kernel.org/20260902194521.3652178-1-joshua.hahnjy@gmail.com
Fixes:
|
||
|
Matthew Schwartz
|
96443a53bc |
selftests/x86: Check signal state for rejected software interrupts
Add a test of the signal ABI for INT instructions in both 32-bit and 64-bit processes. Check the signal number, trap number, error code, si_code, si_addr, instruction pointer and RF/TF state against legacy IDT behavior. Include a 15-byte prefixed INT to check that IP uses the hardware instruction length. Exercise both INT3 encodings, INT4, UD2 and HLT to cover the unchanged trap and fault paths. Run each instruction with TF clear and set. Resume at a known NOP after handling the signal and check that single-stepping traps after the NOP. Also drive INT 0x2d under ptrace, which resumes through the fault frame rather than sigreturn and so exposes a stale FRED software event flag. Start from an INT3 stop, whose FRED frame has no software event flag, instead of the syscall frame of raise(SIGSTOP). Single-step into the INT and check that the fault reports its address. Then suppress SIGSEGV and resume at the NOP, once with PTRACE_SINGLESTEP and once with PTRACE_CONT and TF set. Section 6.2.3 of the Intel FRED specification [1] specifies the immediate single-step trap caused by returning with both that flag and TF set. Check that each trap occurs after the NOP, rather than at its address. Report whether the CPU supports FRED, since a pass looks the same on either entry path. INT 0x80 with IA32 emulation disabled and a 64-bit tracer of a 32-bit tracee are not covered. Both variants pass all 29 checks on a non-FRED AMD host and on Panther Lake with FRED enabled and the fix applied. With the same binaries on unpatched Panther Lake, 16 signal-context checks fail and the first ptrace check reports the IP after the INT. The two dependent ptrace resume checks are not reached. [1] Intel Flexible Return and Event Delivery (FRED) Specification, revision 9.0 (346446-009US), section 6.2.3. Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://cdrdv2.intel.com/v1/dl/getContent/678938 # [1] Link: https://patch.msgid.link/20260917230907.2080792-3-matthew.schwartz@linux.dev |
||
|
Kumar Kartikeya Dwivedi
|
04ae4ffc57 |
selftests/bpf: Check callback map value lock identity
Add a verifier test which retains a map value from an outer callback and then acquires a lock through an inner callback value before attempting to release the outer callback value. Both values can denote different elements, so the verifier must reject the mismatched unlock. Also exercise callbacks reached through two inner-map lookups. The lookup results share inner_map_meta but may refer to different one-element arrays, so their callback values must retain distinct lock identities. Extend the existing spin_lock failure table and reuse its array and inner-map fixtures to keep these cases alongside the other lock identity tests. Update the nested callback reference-leak expectation for the extra callback value ID. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://patch.msgid.link/20260917233222.2542500-10-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Kumar Kartikeya Dwivedi
|
3440505aca |
selftests/bpf: Test CO-RE instruction poisoning restrictions
Add raw CO-RE relocations that fail to resolve their target enum value. Place each supported and unsupported instruction form in dead code. Unsupported targets must fail relocation with a diagnostic even when they are unreachable. Supported ALU immediates, memory accesses, and ldimm64 instructions must still be poisoned and removed as dead code, allowing the program to load. Check that both halves of ldimm64 are poisoned. Load every instruction stream without relocations first to ensure that rejection is caused by the relocation rather than the original program. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260917233222.2542500-8-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Kumar Kartikeya Dwivedi
|
968ee7c06b |
selftests/bpf: Test early in-kernel CO-RE relocation
Add a raw program load with CO-RE relocation metadata but no func_info or line_info. Place the relocation in dead code and require the poisoning log, proving that the kernel processes standalone CO-RE metadata instead of silently skipping it. Also give a subprogram a relocatable immediate as its terminal instruction. Require the relocation's poisoning log before check_subprogs() rejects the resulting fall-through. With the old ordering, check_subprogs() rejects the original terminal instruction before CO-RE can emit the substitution log, so the test continues to distinguish the ordering after relocation target validation is tightened. Submit a trailing ldimm64 first slot with CO-RE metadata and require the early structural diagnostic. This exercises the check that protects relocation processing instead of the later regular instruction validation. Load the standalone instruction stream without relocation metadata first to ensure that CO-RE processing causes its poisoning diagnostic. Encode the fixed BTF metadata directly with the selftest BTF helpers. Suggested-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260917233222.2542500-6-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Kumar Kartikeya Dwivedi
|
2059d9af54 |
selftests/bpf: Test packet pointer class displacement pruning
Add two paths whose packet pointer ranges are individually compatible at a join but whose members have different relative displacements. The first path proves an eight-byte access through one member. On the second path, the same guard only proves that the access starts before data_end. An affected verifier prunes the second path and accepts the program. With packet pointer class displacement preserved, it explores that path and rejects the out-of-bounds access. Read the unknown offset and branch selector directly from XDP context fields, and force state checkpoints so the pruning attempt does not depend on the verifier checkpoint heuristics. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://patch.msgid.link/20260917233222.2542500-4-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Jamal Hadi Salim
|
960ab631f3 |
selftests/tc-testing: add u32 manual table handle IDR tests
35fc: create a manual table with handle 801:, then add an auto-allocated table. Before the fix, the auto allocation reuses id 1 and hands out the same handle 0x80100000, aliasing the manual table; the test requires the manual 801: handle to keep exactly one entry in the dump. a6e8: with a live u32 table keeping the tc_u_common alive, add and delete a manual table with handle 901:, then re-add it. Unpatched, the delete leaks the raw-keyed IDR entry and the re-add fails with -ENOSPC; the test requires the re-add to succeed. Reviewed-by: Victor Nogueira <victor@mojatatu.com> Tested-by: hybris <hybris@mojatatu.ai> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/QDISC-LQFE.v1.20260911041746.2@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Kumar Kartikeya Dwivedi
|
a452e729b7 |
selftests/bpf: Test global subprog callback contexts
Exercise global subprogram verification from workqueue callbacks, which can run in a sleepable context even when the containing program is not sleepable. An unprotected callback must not let the global subprogram use implicit RCU protection inherited from the program. Add a negative case which loads an RCU-protected task kptr in a global subprogram reached from a workqueue callback. It fails on an unfixed kernel because the program is incorrectly accepted. Also cover a workqueue callback protected by an explicit RCU read-side critical section, where the same global subprogram remains valid. Call the same harmless global subprogram directly from the main program and from an unprotected callback. Mark it __weak __noinline so both calls survive optimization, and check that its instruction statistics account for both verification contexts. This also verifies that global calls from callbacks are not rejected wholesale. Workqueue callbacks return zero explicitly after the global call, as required by their contract. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260914131923.2544250-3-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Linus Torvalds
|
b5a051f6b8 |
Including fixes from Netfilter, Bluetooth, IPSec and WiFi.
Previous releases - regressions:
- netfilter: hold reference on ct until flow is released
- bridge:
- move switchdev call outside rcu
- vlan: fix bugs caused by switchdev deletion errors
- wifi:
- mac80211: reset state when starting AP fails
- cfg80211: don't free driver-owned scan requests
- tcp: don't call skb_clone_and_charge_r() for close()d listener in tcp_v6_do_rcv().
- mptcp: return sk_wait_data() errors from recvmsg()
- xfrm: serialize state GC with device state flush
- drop_monitor: synchronize tracepoint unregistration on error path
- bluetooth:
- eir: validate service data length before reading UUID
- hci_sync: serialize local codec list cleanup
- RFCOMM: avoid socket lock inversion in listener cleanup
- eth: lan743x: fix RX checksum use-after-free
- eth: mvpp2: prevent buffer overflow in page_pool allocation
Previous releases - always broken:
- core: lock the socket in sock_gettstamp()
- neighbour: enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.
- sched: codel: bound the dropping loop per dequeue call
- wifi: mac80211: include TIM bitmap control for buffered S1G mcast traffic
- psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
- xfrm: fix stack OOB read in iptfs_skb_reset_frag_walk()
- bluetooth: hci_qca: do not write to the serial port after it is closed
- dsa: mxl862xx: disable the stats poll on teardown
- eth: stmmac: fix TSO header length truncation
- eth: ip_tunnel: initialize `options_len` before referencing options
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Netfilter, Bluetooth, IPSec and WiFi.
Previous releases - regressions:
- netfilter: hold reference on ct until flow is released
- bridge:
- move switchdev call outside rcu
- vlan: fix bugs caused by switchdev deletion errors
- wifi:
- mac80211: reset state when starting AP fails
- cfg80211: don't free driver-owned scan requests
- tcp: don't call skb_clone_and_charge_r() for close()d listener in
tcp_v6_do_rcv()
- mptcp: return sk_wait_data() errors from recvmsg()
- xfrm: serialize state GC with device state flush
- drop_monitor: synchronize tracepoint unregistration on error path
- bluetooth:
- eir: validate service data length before reading UUID
- hci_sync: serialize local codec list cleanup
- RFCOMM: avoid socket lock inversion in listener cleanup
- eth:
- lan743x: fix RX checksum use-after-free
- mvpp2: prevent buffer overflow in page_pool allocation
Previous releases - always broken:
- core: lock the socket in sock_gettstamp()
- neighbour: enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.
- sched: codel: bound the dropping loop per dequeue call
- wifi: mac80211: include TIM bitmap control for buffered S1G mcast
traffic
- psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
- xfrm: fix stack OOB read in iptfs_skb_reset_frag_walk()
- bluetooth: hci_qca: do not write to the serial port after it is
closed
- dsa: mxl862xx: disable the stats poll on teardown
- eth:
- stmmac: fix TSO header length truncation
- ip_tunnel: initialize `options_len` before referencing options"
* tag 'net-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (159 commits)
mptcp: fix bad accounting in __mptcp_subflow_push_pending()
mptcp: close race between scheduler and state change
mptcp: avoid unneeded actions on subflow reset
net: skbuff: do not leave stale header offsets after pskb_carve()
selftests: net: packetdrill: test exclusion of old ACK from TCP fast path
tcp: exclude old ACKs from tcp fast path
dpll: reject a reference sync pin which is not on the pin's dpll
net: mvpp2: prevent buffer overflow in page_pool allocation
net: macb: fix ordering around PTP timestamp read
selftests: drv-net: psp: test PSP and TCP ULP mutual exclusion
net: psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
net: stmmac: preserve real_num_tx_queues on mqprio setup failure
net: stmmac: propagate FPE preemption-class mapping errors
net: wwan: t7xx: validate the netif index in t7xx_ccmni_recv_skb()
net: wwan: mhi_wwan_mbim: check skb_copy_bits() return value
net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain
net: ethernet: cortina: Ack RX overrun interrupt correctly
net: lock the socket in sock_gettstamp()
eth: fbnic: ring the doorbell if a burst ends in a drop
net: netsec: fix device_node reference leak on phy_np
...
|
||
|
fangqiurong
|
9ec7ba20c9 |
selftests/sched_ext: Test that ops.dequeue() can iterate the consumed DSQ
Add a scheduler whose ops.dequeue() iterates the source user DSQ with bpf_iter_scx_dsq. The iteration takes the DSQ's raw spinlock; on a kernel that runs ops.dequeue() while the consume path still holds that lock, the first task consumed self-deadlocks the CPU with IRQs disabled. The watchdog cannot recover from that state, so on an unfixed kernel this test wedges the system instead of failing cleanly. On a fixed kernel the scheduler runs clean and the test passes. Signed-off-by: fangqiurong <fangqiurong@kylinos.cn> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
|
Inbal Schussheim
|
d841cd7513 |
selftests: net: packetdrill: test exclusion of old ACK from TCP fast path
Add a packetdrill test for an in-sequence data segment carrying an
excessively old ACK.
Verify that the segment falls through from the TCP fast path to the slow
path, where the existing ACK validation rejects it and sends a challenge
ACK. The payload is not accepted and RCV.NXT remains unchanged.
Based on the reproducer from Commit
|