Commit Graph

1481427 Commits

Author SHA1 Message Date
Linus Torvalds
cee9395acd Linux 7.3-rc1 2026-08-30 13:34:40 -07:00
Linus Torvalds
78bb208b99 i2c-fixes for v7.3-rc1
Fixes mainly for teardown and resource handling, runtime PM and
 hardware-specific controller issues.
 
 - core: fix debugfs use-after-free when removing the adapter
 - designware: apply interrupt mask quirk for HJMC3001
 - imx-lpi2c: avoid target accesses on master-only controllers
 - mux: release channel node when adapter registration fails
 - qcom-cci: fix autosuspend and runtime PM cleanup on removal
 - qcom-geni: fix timing parameters for 32 MHz clock
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Merge tag 'i2c-fixes-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux

Pull i2c fixes from Andi Shyti:
 "Fixes mainly for teardown and resource handling, runtime PM and
  hardware-specific controller issues:

   - fix debugfs use-after-free when removing the adapter

   - designware: apply interrupt mask quirk for HJMC3001

   - imx-lpi2c: avoid target accesses on master-only controllers

   - mux: release channel node when adapter registration fails

   - qcom-cci: fix autosuspend and runtime PM cleanup on removal

   - qcom-geni: fix timing parameters for 32 MHz clock"

* tag 'i2c-fixes-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux:
  i2c: core: fix debugfs UAF on adapter removal
  i2c: imx-lpi2c: avoid accessing target registers on master-only controllers
  i2c: qcom-cci: fix autosuspend cleanup
  i2c: designware: Enable interrupt mask workaround for HJMC3001
  i2c: qcom-geni: update frequency table to fix timing parameters
  i2c: mux: Fix channel node leak on adapter add failure
2026-08-30 10:53:24 -07:00
Linus Torvalds
eea8bdcb59 Coccinelle patches for Linux v7.3
Sang-Heon Jeon <ekffu200098@gmail.com> has cleaned up a number
 of the semantic patches in the scripts/coccinelle directory,
 particularly with respect to functions that no longer exist in
 the kernel.  He and I have also done some reorganizations that
 improve performance.
 
 I eliminatd some false positives.
 
 相浦彰 / AIURA,AKIRA <akira.aiura.bj@hitachi.com> fixed an
 out of date URL.
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Merge tag 'cocci-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux

Pull Coccinelle updates from Julia Lawall:

 - Clean up a number of the semantic patches in the scripts/coccinelle
   directory, particularly with respect to functions that no longer
   exist in the kernel (Sang-Heon Jeon)

   He and I have also done some reorganizations that improve
   performance.

 - Eliminate some false positives (me)

 - Fix an out of date URL (相浦彰)

* tag 'cocci-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  coccinelle: ifnulldev_put: update error message
  coccinelle: ifnulldev_put: update outdated helper names
  coccinelle: atomic_as_refcounter: drop atomic_long_dec_and_lock
  coccinelle: kfree_mismatch: drop vmalloc_exec
  coccinelle: pool_zalloc-simple: drop the pci_pool_alloc rules
  coccinelle: zalloc-simple: drop the kmem_alloc rules
  coccinelle: alloc_cast: drop removed allocators
  coccinelle: remove obsolete pci_free_consistent.cocci
  scripts: coccinelle: devm_free: reduce false positives
  coccinelle: misc: struct_size: drop unneeded parentheses
  coccinelle: mini_lock: improve performance when searching loops
  coccinelle: api: check for macro context
  coccinelle: update Coccinelle website URL
  coccinelle: misc: minmax: avoid unhelpful isomorphisms
  coccinelle: misc: minmax: check for the presence of if cases
  coccinelle: misc: minmax: drop unneeded parentheses
  coccinelle: misc: minmax: improve performance when no candidate exists
  coccinelle: double_lock: improve performance when no double lock exists
2026-08-30 10:42:40 -07:00
Darrick J. Wong
cbb4c6d9af CREDITS/mailmap: add some info about Darrick J. Wong
Add myself to CREDITS because apparently I've never done that; and
update mailmap so that all my old email addresses get remapped to the
kernel.org redirector.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-08-30 10:29:08 -07:00
Linus Torvalds
a23cbb0574 - Fix UM build regression caused by the removal of the UM
specific timex.h header. (Thomas Weißschuh)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:

 - Fix UM build regression caused by the removal of the UM
   specific timex.h header (Thomas Weißschuh)

* tag 'timers-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  um: Use asm-generic/timex.h over the host architecture one
2026-08-30 10:19:11 -07:00
Linus Torvalds
637836563d - Revert a commit to spinlock cleanup guards that got caught up
in the subtle limitations & fragility of guards (again...) and
    caused a regression (Peter Zijlstra)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Ingo Molnar:

 - Revert a commit to spinlock cleanup guards that got caught up
   in the subtle limitations & fragility of guards (again...) and
   caused a regression (Peter Zijlstra)

* tag 'locking-urgent-2026-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking: Revert switching guards to _irq_{disable,enable}()
2026-08-30 09:57:35 -07:00
Linus Torvalds
f59c074e76 Rust fixes for v7.3
Toolchain and infrastructure:
 
  - Fix KCFI failures, such as in Rust doctests, by disabling function
    merging when CFI is enabled. Gary reported the LLVM bug to upstream
    and it is now fixed in their mainline.
 
  - Fix 'objtool' fallthrough warnings under the experimental
    'CONFIG_RUST_INLINE_HELPERS' by passing (for the combined Rust and
    helpers code) the LLVM options needed to preserve the unreachable
    traps that 'rustc' normally emits.
 
    In addition, fix 'objtool' errors when LTO is enabled on top, by
    also filtering out the LTO flags (for the combined Rust and helpers
    code) so that the traps are kept in place.
 
  - Fix 'objtool' warnings by adding one more 'noreturn' function.
 
  - Fix 'make rusttest' target when the 'rustc-dev' component is
    installed and Rust >= 1.82.0, <= 1.87.0 is used.
 
 'kernel' crate:
 
  - 'num' module: fix soundness issue in the 'Bounded' conversion from
    'bool' by restricting the conversions to unsigned 'Bounded'.
 
  - 'jump_label' module: fix future 'make rusttest' target failures when
    'ARCH=' is set to an arch different than the host's.
 
  - 'list' module: fix incorrect 'pop_back()' comment.
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Merge tag 'rust-fixes-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull Rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Fix KCFI failures, such as in Rust doctests, by disabling function
     merging when CFI is enabled. Gary reported the LLVM bug to upstream
     and it is now fixed in their mainline.

   - Fix 'objtool' fallthrough warnings under the experimental
     'CONFIG_RUST_INLINE_HELPERS' by passing (for the combined Rust and
     helpers code) the LLVM options needed to preserve the unreachable
     traps that 'rustc' normally emits.

     In addition, fix 'objtool' errors when LTO is enabled on top, by
     also filtering out the LTO flags (for the combined Rust and helpers
     code) so that the traps are kept in place.

   - Fix 'objtool' warnings by adding one more 'noreturn' function.

   - Fix 'make rusttest' target when the 'rustc-dev' component is
     installed and Rust >= 1.82.0, <= 1.87.0 is used.

  'kernel' crate:

   - 'num' module: fix soundness issue in the 'Bounded' conversion from
     'bool' by restricting the conversions to unsigned 'Bounded'.

   - 'jump_label' module: fix future 'make rusttest' target failures
     when 'ARCH=' is set to an arch different than the host's.

   - 'list' module: fix incorrect 'pop_back()' comment"

* tag 'rust-fixes-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
  rust: kbuild: disambiguate `zerocopy_derive` for `rusttest`
  rust: num: restrict bool conversion to unsigned Bounded
  kbuild: rust: keep Rust objects out of Clang LTO with inline helpers
  kbuild: rust: preserve unreachable traps with inline helpers
  rust: cfi: disable function merging if CFI is enabled
  rust: jump_label: skip arch-specific asm in `testlib` builds
  objtool/rust: add one more `noreturn` Rust function
  rust: kernel: list: fix incorrect pop_back example comment
2026-08-30 09:47:39 -07:00
Linus Torvalds
0fe792fa9b ARM updates for 7.3-rc1
- add module description for kprobes testing module
 - remove references to CONFIG_CPU_ARM92x_CPU_IDLE options
 - expand comment in ARM's __switch_to()
 
 Also a number of fixes that missed 7.2:
 
 - disable broken eBPF on RiscPC
 - more BKPT fixes (guys, it's a *very* bad idea when everyone uses
   the BKPT instruction for their own differing purposes.)
 - another preempt-rt fix, this time for siglock / CPU timers
 - fix another path where we try to send signals to processes
   with interrupts disabled
 - acquire mmap write lock for show_pte() with user faults
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull arm updates from Russell King:
 "Updates for 7.3:

   - add module description for kprobes testing module

   - remove references to CONFIG_CPU_ARM92x_CPU_IDLE options

   - expand comment in ARM's __switch_to()

  Also a number of fixes that missed 7.2:

   - disable broken eBPF on RiscPC

   - more BKPT fixes (guys, it's a *very* bad idea when everyone uses
     the BKPT instruction for their own differing purposes)

   - another preempt-rt fix, this time for siglock / CPU timers

   - fix another path where we try to send signals to processes with
     interrupts disabled

   - acquire mmap write lock for show_pte() with user faults"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9480/1: entry: expand comment in __switch_to
  ARM: 9478/1: Remove references to removed CONFIG_CPU_ARM92x_CPU_IDLE options
  ARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults
  ARM: 9484/1: enable interrupts when unhandled user faults are triggered
  ARM: 9483/1: select HAVE_POSIX_CPU_TIMERS_TASK_WORK
  ARM: 9481/2: breakpoint: CFI breakpoints only on demand
  ARM: 9477/1: Disable broken eBPF JIT on the Risc PC
  ARM: 9473/1: kprobes: test: add MODULE_DESCRIPTION
2026-08-30 09:43:01 -07:00
Linus Torvalds
fb5b59a6a6 OpenRISC 7.3 updates
One small item and one bug fix.
 
  * The bug fix is to fix an unchecked access in our or1k_atomic syscall,
    I am debating if we should just deprecate this as there is minimal
    need for it.
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Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "One small trivial macro cleanup and one bug fix.

  The bug fix is to fix an unchecked access in our or1k_atomic syscall,
  I am debating if we should just deprecate this as there is minimal
  need for it"

* tag 'for-linus' of https://github.com/openrisc/linux:
  openrisc: fix arbitrary kernel memory access via or1k_atomic syscall
  openrisc: drop unneeded semicolon
2026-08-30 09:26:54 -07:00
Linus Torvalds
034dd340b0 tracing fixes for v7.3:
- Fix error output of boot instance creation failure
 
   Currently if a boot instance creation fails, instead of printing out the
   name of the instance that failed, it prints "(null)". That is because it
   prints "cur_str" that had already been processed by strsep(). Print the
   saved name instead.
 
   While at it, print the error code of the failure.
 
 - Fix use-after-free for same named historgrams
 
   Histograms can be named so that they can be used in multiple events. But
   if the named histogram has a variable attached, the second event that uses
   the named histogram which duplicates it and needs to free the original
   after duplication leaves the old variable in place and still visible. If
   another histogram uses than variable, it will use the stale one which will
   try to reference the freed duplicate histogram and crash the kernel.
 
   Free the duplicate variables along with the duplicated histogram data.
 
 - Check return value of kthread_run() in event self test
 
   The events self tests uses a kthread for testing but does not check if it
   succeeded in creating a kthread. If the kthread creation were to fail, the
   code will still try to call kthread_stop() on the error returned.
 
 - Fix race between reading trace_pipe and updating subbuffer size
 
   If a user is reading the trace_pipe file at the same time they update the
   ring buffer sub-buffer size, can cause the trace_pipe read to read stale
   data. Add trace_access_lock() around updating the ring buffer sub-buffer
   size.
 
 - Fix eventfs_inode on failure path in creation of the events directory
 
   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which calls
   free_ei(). The free_ei() will test if eventfs_inode being freed has no
   children. It is a bug if it does. But on the failure case of the creation
   of the "events" directory, the children lists have not yet been
   initialized and the free will trigger a warning because list_empty() on an
   uninitialized list returns false.
 
   Move the initialization into init_ei() where it makes more sense and makes
   sure that a created eventfs_inode has its lists initialized upon creation.
 
 - Check return value of kthread_run() in ftrace direct sample code
 
   The sample code that shows how to use the ftrace direct calls does not
   test the return of kthread_run() to see if it succeeds. Return a failure
   if the kthread_run() doesn't succeed.
 
 - Clear user events state on fork in case of alloc failure
 
   On fork, the child gets a pointer to the parent's user events state. It
   makes a copy of it then updates the child's pointer to it. But if the
   allocation fails, the duplication function leaves the child with a pointer
   to its parent's descriptor. When the child cleans up its data, it will free
   the parent's descriptor while the parent is still using it.
 
   In the duplication function, set the child's user_event_mm to NULL before
   testing if the allocation succeeded, and when it exits it will not free
   the parent's descriptor.
 
 - Fix retry exhaustion in simple ring buffer reader swap
 
   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a failed
   replacement leaves it at -1.
 
   But the check for success expects the retry value to be non-zero and exits
   with an error on zero. This is the opposite result. Fix it.
 
 - Fail nicely when the remote swap_reader_page() returns an error
 
   Currently, if the swap_reader_page() of a remote buffer fails, it triggers
   a WARN_ON_ONCE() and continues normally. Instead, have it exit with an
   error and a pr_warn() print instead of a full WARNING.
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Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure
2026-08-30 09:22:00 -07:00
Russell King (Oracle)
1a89abc009 Merge branches 'fixes' and 'misc' into for-linus 2026-08-30 15:05:54 +01:00
Julia Lawall
ef6a1dca8d coccinelle: ifnulldev_put: update error message
Update the report and org mode messages to reflect the new
function names.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
2026-08-30 14:36:11 +02:00
Sang-Heon Jeon
f83b8a5869 coccinelle: ifnulldev_put: update outdated helper names
dev_put_track() and dev_hold_track() were renamed to netdev_put() and
netdev_hold() by commit d62607c3fe ("net: rename reference+tracking
helpers").

So update the names.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
2026-08-30 14:34:22 +02:00
Sang-Heon Jeon
5264281879 coccinelle: atomic_as_refcounter: drop atomic_long_dec_and_lock
atomic_long_dec_and_lock() has never existed. So drop it from the rules.

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
2026-08-30 14:17:25 +02:00
Sang-Heon Jeon
3beb6e620f coccinelle: kfree_mismatch: drop vmalloc_exec
vmalloc_exec() was removed by commit 7a0e27b2a0 ("mm: remove
vmalloc_exec").

So drop it from the rules.

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
2026-08-30 14:09:27 +02:00
Sang-Heon Jeon
729eb52aa1 coccinelle: pool_zalloc-simple: drop the pci_pool_alloc rules
pci_pool_alloc() and pci_pool_zalloc() were removed by commit
88dee3b0ef ("PCI: Remove unused pci_pool wrappers").

So drop the pci_pool_alloc rules.

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
2026-08-30 11:19:01 +02:00
Linus Torvalds
08dbfad3f5 SCSI updates for 7.3
Remaining updates for the 7.3 merge window. The only core change is
 enabling context analysis for the SCSI layer and UFS. The remaining
 changes are either bug fixes or hardening.
 
 Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi

Pull more SCSI updates from Martin Petersen:
 "Remaining updates for the 7.3 merge window. The only core change is
  enabling context analysis for the SCSI layer and UFS.

  The remaining changes are either bug fixes or hardening"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi: (26 commits)
  scsi: snic: Fix SCSI host leak on workqueue allocation failure
  scsi: MAINTAINERS: Update my email address
  scsi: MAINTAINERS: Leave the cumana_1 and oak drivers to the RISCPC maintainers
  scsi: leapraid: Standardize NCQ priority sysfs attributes
  scsi: leapraid: Serialize firmware log mmap with teardown
  scsi: leapraid: Balance host references for firmware log VMAs
  scsi: lpfc: Remove unnnecessary NULL check
  scsi: qla2xxx: Fix an loop timeout test
  scsi: qla2xxx: Fix an error code in qla_get_tmf()
  scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()
  scsi: core: Enable context analysis for hosts.o
  scsi: lpfc: Replace strlcat() with sysfs_emit_at() in the sysfs show functions
  scsi: lpfc: Replace strlcat() with seq_buf in the debugfs dump helpers
  scsi: lpfc: Replace strlcat() with seq_buf in lpfc_rx_monitor_report()
  scsi: lpfc: Replace strlcat() with scnprintf() in lpfc_vport_symbolic_node_name()
  scsi: lpfc: Replace strlcat() with seq_buf in lpfc_info()
  scsi: core: Enable context analysis
  scsi: core: Protect host state changes with the host lock
  scsi: core: Add lock context annotations
  scsi: core: Pass the SCSI host pointer directly to scanning functions
  ...
2026-08-29 11:55:36 -07:00
Ali Ahmet Memis
78004e9a87 openrisc: fix arbitrary kernel memory access via or1k_atomic syscall
sys_or1k_atomic() (syscall 244 in the "or1k" ABI) takes two user
pointers, v1 and v2, and swaps the words they point to in hand-written
assembly.

    l.lwz   r29,0(r4)
    l.lwz   r27,0(r5)
    l.sw    0(r4),r27
    l.sw    0(r5),r29

The pointers are not checked with access_ok(). The four memory
accesses also have no exception table entries.

A caller passes a kernel address as either pointer, and the syscall
reads from and writes to it directly.

This gives an unprivileged process a kernel read/write primitive. It
overwrites kernel data such as the sys_call_table, gaining code
execution in kernel context.

Check both pointers before entering the critical section. Add fixups
for the four memory accesses so faults on valid but unmapped user
addresses return -EFAULT.

[shorne@gmail.com: fix comment style]
Fixes: 9d02a4283e ("OpenRISC: Boot code")
Cc: stable@vger.kernel.org
Signed-off-by: Ali Ahmet Memis <ali@iusegentoo.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
2026-08-29 07:32:26 +01:00
Linus Torvalds
cf72cbb39d io_uring-7.3-20260828
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Merge tag 'io_uring-7.3-20260828' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:
 "A few smaller fixes for io_uring that should go into the 7.3-rc1
  kernel, all three headed to stable as well. This contains:

   - A few fixes around cancellation and teardown for waitid

   - Cap the user size for the query interface copy-out"

* tag 'io_uring-7.3-20260828' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/waitid: avoid siginfo copy during ring teardown
  io_uring/waitid: honor task_work cancellation
  io_uring/query: cap user size passed to copy_struct_to_user
2026-08-28 16:51:14 -07:00
Linus Torvalds
a99d741df7 drm next/fixes for 7.3-rc1
core:
 - use drm_warn instead of warn
 
 msm:
 - Bindings:
   - Added Shikra support
   - Document a840, a704, a722
 - Core:
   - Use drm_client buffers for fbdev emulation
   - teardown fixes
   - ARM32 DMA fixup
   - Remove objects from evict list when re-validated
   - Bunch of corner case and error path fixes
 - DPU:
   - Dropped dev_pm_opp_set_rate(0) preventing burnout
   - Fixed SSPP offsets of Kaanapali
 - DP:
   - Dropped dev_pm_opp_set_rate(0) preventing burnout
   - Cleaned up core code in preparation for MST support
   - Fixed prepare() to let Pipewire continue in case of the unplugged cable
 - GPU:
   - Add support for a704
   - Add support for a722
 - HDMI:
   - Simplifed register access
 
 amdgpu:
 - eGPU fixes
 - Runtime PM fix
 - UserQ fixes
 - Backlight fix
 - Discovery sysfs fix
 - Reset handling fixes
 - Buffer func handling fix for xgmi
 - VCN boundary check fix
 - DC lut handling fixes
 - MES fixes
 - UVD fix
 - VCE 3 fix
 - Enforce isolation fix
 - HPD fix for VGA/LVDS
 - DML fix
 - DCN 6 fixes
 - DC gpu reset fix
 
 amdkfd:
 - Fix return value
 - CU occupancy for GFX 11
 - CU occupancy for GFX 12/12.1
 - Queue bounds checking fix
 - SVM fixes
 - CRIU bounds checking fix
 
 radeon:
 - iMac display fix
 
 xe:
 - error message cleanups
 - i2c global register definitions as dependency for xe/i2c fixes
 - Media workardound
 - Add CCS to gt_idle debugfs print
 - Page fault related fix
 - i2c related fixes
 - System Controller mailbox bit fix
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Merge tag 'drm-next-2026-08-29' of https://gitlab.freedesktop.org/drm/kernel

Pull more drm updates from Dave Airlie:
 "As mentioned last week, an msm pull request fell down the side of the
  couch or whatever the email equivalent of that is. This has the msm
  next stuff + the usual fixes for amd/intel.

  core:
   - use drm_warn instead of warn

  msm:
   - Bindings:
      - Added Shikra support
      - Document a840, a704, a722
   - Core:
      - Use drm_client buffers for fbdev emulation
      - teardown fixes
      - ARM32 DMA fixup
      - Remove objects from evict list when re-validated
      - Bunch of corner case and error path fixes
   - DPU:
      - Dropped dev_pm_opp_set_rate(0) preventing burnout
      - Fixed SSPP offsets of Kaanapali
   - DP:
      - Dropped dev_pm_opp_set_rate(0) preventing burnout
      - Cleaned up core code in preparation for MST support
      - Fixed prepare() to let Pipewire continue in case of the unplugged cable
   - GPU:
      - Add support for a704
      - Add support for a722
   - HDMI:
      - Simplifed register access

  amdgpu:
   - eGPU fixes
   - Runtime PM fix
   - UserQ fixes
   - Backlight fix
   - Discovery sysfs fix
   - Reset handling fixes
   - Buffer func handling fix for xgmi
   - VCN boundary check fix
   - DC lut handling fixes
   - MES fixes
   - UVD fix
   - VCE 3 fix
   - Enforce isolation fix
   - HPD fix for VGA/LVDS
   - DML fix
   - DCN 6 fixes
   - DC gpu reset fix

  amdkfd:
   - Fix return value
   - CU occupancy for GFX 11
   - CU occupancy for GFX 12/12.1
   - Queue bounds checking fix
   - SVM fixes
   - CRIU bounds checking fix

  radeon:
   - iMac display fix

  xe:
   - error message cleanups
   - i2c global register definitions as dependency for xe/i2c fixes
   - Media workardound
   - Add CCS to gt_idle debugfs print
   - Page fault related fix
   - i2c related fixes
   - System Controller mailbox bit fix"

* tag 'drm-next-2026-08-29' of https://gitlab.freedesktop.org/drm/kernel: (121 commits)
  drm/xe/sysctrl: Read mailbox phase bit from hardware
  drm/xe/i2c: Keep the i2c controller always enabled
  drm/xe/i2c: Fix the interrupt handling
  i2c: designware: Global register definitions
  drm/xe: Reject page faults from non-fault-mode scratch VMs
  drm/xe/xe_gt_idle: Add CCS to the powergating info print
  drm/xe: Do not apply WA 14025883347 to media 3503
  drm/amd/display: fix dc_lock leak on GPU reset error paths
  drm/amd/display: Fix redundant GPUVMEnable checks in dcn6 flip schedule
  drm/amd/display: Fix wrong bytes-per-pixel value for dml2_422_packed_10
  drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore
  drm/amdgpu/userq: fix lock missing for userq fence error set
  drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram
  drm/amdkfd: Fix error path at svm_migrate_copy_to_ram
  drm/amd/display: Log details when failing to register HPD IRQ
  drm/amd/display: Fix HPD consideration for VGA/LVDS connectors on DCE
  drm/amdgpu: clamp the isolation index for rings outside a partition
  drm/amdkfd: Reject zero-sized AQL queue allocations after size halving
  drm/amdgpu: Fix VCE 3 ring align_mask
  drm/kfd: Add CU occupancy support to GFX12.1
  ...
2026-08-28 16:37:55 -07:00
Linus Torvalds
4cc4cc367f ipmi: Fix some minor issues, add async init
Several cleanup on error fixes and a missing RCU wait and proper
 validation on a received message in one place.
 
 The biggest change is the initialization of the driver can be done
 asynchronously on a work queue.  That saves significant boot time.
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Merge tag 'for-linus-7.3-1' of https://github.com/cminyard/linux-ipmi

Pull ipmi updates from Corey Minyard:
 "Several cleanup on error fixes and a missing RCU wait and proper
  validation on a received message in one place.

  The biggest change is the initialization of the driver can be done
  asynchronously on a work queue. That saves significant boot time"

* tag 'for-linus-7.3-1' of https://github.com/cminyard/linux-ipmi:
  ipmi: Fix use-after-free of cmd_rcvr in _ipmi_destroy_user()
  ipmi:msghandler: Cancel work cleanly on an error
  ipmi:si: Add async init to ipmi_si
  char: ipmi: use named initializers for acpi_device_id
  ipmi: Fix leak in __ipmi_bmc_register
  ipmi: Remove all sysfs files on registration failure
  ipmi: si: Fix NULL pointer dereference after failed registration
  ipmi: ipmb: validate write message length
2026-08-28 16:32:12 -07:00
Linus Torvalds
548e7bcd0c A wide variety of mostly CephFS fixes and cleanups, split between
changes that address edge cases (Sam, Xiubo, Matthew), efficiency
 improvements (Max) and AI-assisted hardening (Michael, Jeremy).
 
 One thing that stands out is Alex's change to how CephFS behaves in
 NEARFULL scenarios: the long-standing "make all writes synchronous"
 behavior has become opt-in.  It was always somewhat controversial and
 doesn't make much sense for modern deployments; the new default is to
 continue normal operation (i.e. buffer writes as MDS allows, etc).  The
 behavior in case the cluster reaches any FULL state remains the same as
 before.
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Merge tag 'ceph-for-7.3-rc1' of https://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "A wide variety of mostly CephFS fixes and cleanups, split between
  changes that address edge cases (Sam, Xiubo, Matthew), efficiency
  improvements (Max) and AI-assisted hardening (Michael, Jeremy).

  One thing that stands out is Alex's change to how CephFS behaves in
  NEARFULL scenarios: the long-standing "make all writes synchronous"
  behavior has become opt-in. It was always somewhat controversial and
  doesn't make much sense for modern deployments; the new default is to
  continue normal operation (i.e. buffer writes as MDS allows, etc). The
  behavior in case the cluster reaches any FULL state remains the same
  as before"

* tag 'ceph-for-7.3-rc1' of https://github.com/ceph/ceph-client: (32 commits)
  ceph: force a cap message when a deferred revoke can't be acked immediately
  libceph: reject buckets with mismatched CRUSH ids
  ceph: reject export_targets ranks >= CEPH_MAX_MDS in mdsmap decode
  ceph: fix leaked inode reference on writeback abort at umount
  libceph: remove ceph_put_page_vector()
  libceph: validate banner payload length
  ceph: make nearfull sync writes opt-in
  ceph: do not repeat ceph_trim_dentries() if no progress possible
  ceph: drop mdsc->mutex before decoding the MDS reply
  ceph: fix UAF in check_new_map() on session freed during unlock
  ceph: fix UAF in __kick_flushing_caps() on cf entry freed during unlock
  ceph: pass inode pointer around instead of reloading it
  ceph: mark cap remove with RB_CLEAR_NODE() instead of setting ci=NULL
  ceph: add helper function ceph_cap_is_removed()
  ceph: make __ceph_remove_cap() static
  ceph: cap delegated inode count in ceph_parse_deleg_inos()
  ceph: bound num_export_targets array for mds info v2/v3
  ceph: bound MDSCapAuth path and fs_name decode in handle_session()
  ceph: bound xattr value length in __build_xattrs()
  ceph: bound copied dentry name length in NFS export get_name
  ...
2026-08-28 11:51:05 -07:00
Linus Torvalds
ce727a090b This pull request contains updates for UBI and UBIFS:
UBI:
 - Support for a per-device wear-leveling threshold
 - Various fixes and cleanups of error paths
 - Correctly preserve torture flag up wear-leveling
 
 UBIFS:
 - Various fixes and cleanups of error paths and kernel-doc
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Merge tag 'ubifs-for-linus-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

Pull UBI and UBIFS updates from Richard Weinberger:
 "UBI:
   - Support for a per-device wear-leveling threshold
   - Various fixes and cleanups of error paths
   - Correctly preserve torture flag up wear-leveling

  UBIFS:
   - Various fixes and cleanups of error paths and kernel-doc"

* tag 'ubifs-for-linus-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  UBI: support per-device wear-leveling threshold
  UBI: fix two issues in the ubi.mtd MODULE_PARM_DESC
  mtd: ubi: Release device reference on busy detach
  ubi: Fix rollback for explicit UBI device numbers
  ubifs: fix out-of-bounds read in signature length check
  UBI: fastmap: Pass to_be_tortured when reusing old fastmap PEBs
  UBI: Preserve torture flag when rescheduling failed erasures
  ubifs: ubifs.h: clean up kernel-doc comments
  ubifs: key.h: use correct function parameter name
  ubifs: debug.h: fix kernel-doc struct prototypes
2026-08-28 10:59:07 -07:00
Linus Torvalds
115bd364ab f2fs-for-7.3-rc1
In this round, key enhancements focus on reducing inode management memory
 overhead, introducing resizable tail sections with unified pinned allocation,
 and boosting I/O throughput via parallel multi-device flushes and asynchronous
 f2fs_write_end_io() execution. We also add dynamic device alias reservations to
 allow on-the-fly space donation from user partitions.
 
 Alongside these features, critical bug fixes resolve folio race conditions,
 lingering dirty flags, dentry and block counter leaks, and potential deadloops
 in f2fs_fsync_node_pages(). Additional stability patches address error-path
 handling across symlink, sync, and rename/unlink operations, prevent pinned file
 fragmentation, and correct segment migration and free section accounting in
 free_segment_range.
 
 Enhancement:
  - reduce memory footprint of ino management
  - support dynamic reserve/release for device aliasing
  - issue multi-device flushes in parallel
  - add a way to run f2fs_write_end_io() asynchronously
  - support resizable tail section and unify pinned allocation
 
 Bug fix:
  - fix to pass folio->index to f2fs_sanity_check_node_footer()
  - fix folio_nr_pages() race after put in large folio invalidate
  - fix to clear dirty flag on folio in error path
  - accurately adjust free_sections during free_segment_range
  - fix to avoid potential deadloop in f2fs_fsync_node_pages()
  - fix the error path in symlink, device alias in rename/unlink,
    f2fs_sync_fs,
  - fix to migrate all curseg types during free_segment_range
  - fix to avoid pinfile fragment on fragment:{block, segment} mode
  - fix valid block count leak on data block allocation failure
  - fix dentry folio leak in find_in_level
  - reject overlapping move range after len expansion
  - fix some bugs related to file pinning, GC functions, i_size.
 
 And, the series includes a number of minor bug fixes.
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Merge tag 'f2fs-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, key enhancements focus on reducing inode management
  memory overhead, introducing resizable tail sections with unified
  pinned allocation, and boosting I/O throughput via parallel
  multi-device flushes and asynchronous f2fs_write_end_io() execution.
  We also add dynamic device alias reservations to allow on-the-fly
  space donation from user partitions.

  Alongside these features, critical bug fixes resolve folio race
  conditions, lingering dirty flags, dentry and block counter leaks, and
  potential deadloops in f2fs_fsync_node_pages(). Additional stability
  patches address error-path handling across symlink, sync, and
  rename/unlink operations, prevent pinned file fragmentation, and
  correct segment migration and free section accounting in
  free_segment_range.

  Enhancements:
   - reduce memory footprint of ino management
   - support dynamic reserve/release for device aliasing
   - issue multi-device flushes in parallel
   - add a way to run f2fs_write_end_io() asynchronously
   - support resizable tail section and unify pinned allocation

  Bug fixes:
   - fix to pass folio->index to f2fs_sanity_check_node_footer()
   - fix folio_nr_pages() race after put in large folio invalidate
   - fix to clear dirty flag on folio in error path
   - accurately adjust free_sections during free_segment_range
   - fix to avoid potential deadloop in f2fs_fsync_node_pages()
   - fix the error path in symlink, device alias in rename/unlink,
     f2fs_sync_fs
   - fix to migrate all curseg types during free_segment_range
   - fix to avoid pinfile fragment on fragment:{block, segment} mode
   - fix valid block count leak on data block allocation failure
   - fix dentry folio leak in find_in_level
   - reject overlapping move range after len expansion
   - fix some bugs related to file pinning, GC functions, i_size

  And, the series includes a number of minor bug fixes"

* tag 'f2fs-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: support resizable tail section and unify pinned allocation
  f2fs: don't leave the hashed inode while it's unlinked
  f2fs: accurately adjust free_sections during free_segment_range
  f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()
  f2fs: use adjusted write range after f2fs_write_checks()
  f2fs: fix to propagate error from f2fs_sync_fs()
  f2fs: return symlink writeback errors
  f2fs: fix error handling on device alias check in rename and unlink
  f2fs: fix to reset all pinned status during fggc
  f2fs: use f2fs_{down, up}_(read, write}_trace() for nat_tree_lock
  f2fs: reduce memory footprint of ino management
  f2fs: fix i_size when pinned fallocate partially fails
  f2fs: fix to migrate all curseg types during free_segment_range
  f2fs: avoid setting SBI_NEED_FSCK on transient resize failure
  f2fs: fix to avoid pinfile fragment on fragment:{block, segment} mode
  f2fs: cleanup w/ f2fs_need_rand_{blk, seg, seg_blk}
  f2fs: fix to shrink gc_lock coverage in f2fs_gc_range()
  f2fs: fix to reclaim space in f2fs_allocate_pinning_section()
  f2fs: unify add/remove ino entry API for all ino types
  f2fs: fix to zero post-EOF data when extending file size
  ...
2026-08-28 10:48:48 -07:00
Linus Torvalds
c20313e98b sound fixes for 7.3-rc1
A collection of various small fixes since the last PR.
 Most changes are device-specific fixes, while there are a few fixes
 addressing the issues reported recently by fuzzers.
 
 Here are highlights:
 
 * ALSA Core:
 - Prevent adding invalid kcontrols to the LED layer
 - Workaround for a false-positive mutex lockdep warning in rawmidi
 
 * USB-audio:
 - Relaxed the sticky mixer behavior check that caused regressions
 - Fix an OOB write in Novation MIDI output
 - Proper cleanup after system-resume errors
 - Quirk updates for M-Audio Venom, Audient iD14 MkI, Logitech PRO X
   Wireless, SMSL USB DAC, and Creative Sound Blaster Play! 3
 
 HD-audio:
 - Conexant headset plugin fixes
 - Quirk additions and fixes for HP Laptop 15, Lenovo IdeaPad Slim 3,
   TongFang XxAF5xxx, Lenovo Legion Pro 7, and Lenovo Yoga Pro 9
 
 ASoC:
 - DAPM: Fix off-by-one check on the second enum channel
 - Tegra: Fix and sort register defaults
 - AMD quirk updates for ASUS FA401EA, HP OmniBook X Flip 16,
   HVY-WXX9/M1060, Alienware m18 R1, and MSI Thin A15 B7UC
 - Fixes Qualcomm TDM handling
 - Fix double put_device() on SoundWire
 - Codec fixes for rt766, tac5xx2, rt712, tas2783, and max98926
 
 Misc:
 - Fix card leak on probe error on ice1712 driver
 - Hardening for legacy aoa, mtpav and pcxhr drivers
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Merge tag 'sound-fix-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of various small fixes since the last PR. Most changes
  are device-specific fixes, while there are a few fixes addressing the
  issues reported recently by fuzzers.

  Here are highlights:

  ALSA Core:
   - Prevent adding invalid kcontrols to the LED layer
   - Workaround for a false-positive mutex lockdep warning in rawmidi

  USB-audio:
   - Relaxed the sticky mixer behavior check that caused regressions
   - Fix an OOB write in Novation MIDI output
   - Proper cleanup after system-resume errors
   - Quirk updates for M-Audio Venom, Audient iD14 MkI, Logitech PRO X
     Wireless, SMSL USB DAC, and Creative Sound Blaster Play! 3

  HD-audio:
   - Conexant headset plugin fixes
   - Quirk additions and fixes for HP Laptop 15, Lenovo IdeaPad Slim 3,
     TongFang XxAF5xxx, Lenovo Legion Pro 7, and Lenovo Yoga Pro 9

  ASoC:
   - DAPM: Fix off-by-one check on the second enum channel
   - Tegra: Fix and sort register defaults
   - AMD quirk updates for ASUS FA401EA, HP OmniBook X Flip 16,
     HVY-WXX9/M1060, Alienware m18 R1, and MSI Thin A15 B7UC
   - Fixes Qualcomm TDM handling
   - Fix double put_device() on SoundWire
   - Codec fixes for rt766, tac5xx2, rt712, tas2783, and max98926

  Misc:
   - Fix card leak on probe error on ice1712 driver
   - Hardening for legacy aoa, mtpav and pcxhr drivers"

* tag 'sound-fix-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (53 commits)
  ALSA: control: Don't add invalid kcontrols to LED layer
  ASoC: amd: acp-config: change quirks to cover all ASUS FA401EA variants
  ALSA: hda/conexant: Always enable the headset-mic pin on plugin
  ASoC: dapm: Fix off-by-one check on the second enum channel
  ASoC: amd: acp-config: force SoundWire probe on HP OmniBook X Flip 16
  ASoC: amd: acp3x-es83xx: Add HVY-WXX9/M1060 DMI quirk
  ASoC: amd: acp-config: Add HVY-WXX9/M1060 DMI quirk
  ASoC: soc-generic-dmaengine: Fix DMA channel request warning
  ALSA: rawmidi: Another workaround for false-positive mutex lockdep warning
  ASoC: amd: yc: Add DMI entry for Alienware m18 R1 AMD
  ASoC: amd: yc: Add DMI entry for MSI Thin A15 B7UC
  ALSA: hda/realtek: Fix speaker mute LED for HP Laptop 15-fd0039nt
  ALSA: usb-audio: Complete cleanup after system-resume errors
  ALSA: hda/realtek: Add quirk for Lenovo IdeaPad Slim 3 15ABR8
  ALSA: aoa: i2sbus: Check IRQ before requesting it
  ALSA: usb-audio: Skip mixer creation on M-Audio Venom
  ALSA: usb-audio: Skip reading sample rate on M-Audio Venom
  ASoC: rt766: add RT766/RT767 VA1 device IDs
  ALSA: hda/realtek: Add quirk for TongFang XxAF5xxx
  ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output()
  ...
2026-08-28 10:01:02 -07:00
Linus Torvalds
275bc4eedf RTC for 7.3
Subsystem:
  - patchwork project is moving to kernel.org
  - fully initialize clk_init_data
  - add missing MODULE_DEVICE_TABLE()
  - DT bindings conversions to DT schema
 
 Drivers:
  - ds1307: fix WADA bit for alarms on RX8130
  - rzn1: add support for RZ/T2H and RZ/N2H, many fixes
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Merge tag 'rtc-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The RZN1 driver got a fairly comprehensive cleanup. More DT binding
  are converted to DT schema, leaving only 5 remaining files to convert.

  Subsystem:
   - patchwork project is moving to kernel.org
   - fully initialize clk_init_data
   - add missing MODULE_DEVICE_TABLE()
   - DT bindings conversions to DT schema

  Drivers:
   - ds1307: fix WADA bit for alarms on RX8130
   - rzn1: add support for RZ/T2H and RZ/N2H, many fixes"

* tag 'rtc-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (42 commits)
  MAINTAINERS: update rtc subsystem patchwork location
  rtc: msc313: Select by default on MSTARV7
  rtc: microcrystal: Make sure clk_init_data is fully initialized
  rtc: philips: Make sure clk_init_data is fully initialized
  rtc: nct3018y: Make sure clk_init_data is fully initialized
  rtc: m41t80: Make sure clk_init_data is fully initialized
  rtc: hym8563: Make sure clk_init_data is fully initialized
  rtc: rzn1: Add support for Renesas RZ/T2H and RZ/N2H SoCs
  rtc: rzn1: Drop trailing comma from OF match table sentinel
  rtc: rzn1: Add OF match data to gate SUBU register access
  rtc: rzn1: use FIELD_PREP/FIELD_GET and GENMASK for register access
  rtc: rzn1: Consistently use dev_err_probe()
  rtc: rzn1: Use temporary variable for struct device
  rtc: rzn1: Dynamically calculate synchronization delay based on clock rate
  rtc: rzn1: Replace remove callback with devm_add_action_or_reset()
  rtc: rzn1: Use pm_runtime_put_sync()
  rtc: Kconfig: Broaden RTC_DRV_RZN1 dependency to ARCH_RENESAS
  rtc: rzn1: Fix malformed MODULE_AUTHOR string
  rtc: rzn1: Disable alarm interrupt before reprogramming alarm registers
  rtc: rzn1: Fix alarm range check truncation on 32-bit systems
  ...
2026-08-28 09:53:43 -07:00
Linus Torvalds
afe0579334 Hi,
I had to think a lot how to put this into few paragraphs.  I hope this will
 makes sense to you and I'm not too confusing.
 
 The bulk of this pull request are Ross Philipson's TPM enablers for the
 Trenchboot patch series.  The commits expose TPM constants, and decouple
 and improve robustness of tpm_buf a bit in order to implement a minimal
 early TPM driver.
 
 Early boot code will call either SKINIT on AMD or GETSEC[SENTER] on Intel
 before jumping into kernel's entry point.  They re-initalize TPM PCRs but
 leave up to the early boot code measure initrd, boot_params and Trenchboot
 associated metadata.
 
 The motivation here is just that we would want in future iterations of the
 series put our full focus to the x86 part of the review, and call it a day
 as per TPM changes.  Further, even if Trenchboot turned out to be empty
 lottery the worst possible outcome for TPM driver is that things get
 cleaned up a bit.
 
 BR, Jarkko
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Merge tag 'for-next-tpm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull TPM updates from Jarkko Sakkinen:
 "The bulk of this is Ross Philipson's TPM enablement for Trenchboot.
  That exposes TPM constants, and decouple and improve robustness of
  tpm_buf a bit in order to implement a minimal early TPM driver.

  Early boot code will call either SKINIT on AMD or GETSEC[SENTER] on
  Intel before jumping into kernel's entry point. They re-initalize TPM
  PCRs but leave up to the early boot code measure initrd, boot_params
  and Trenchboot associated metadata.

  The motivation here is just that we would want in future iterations of
  the series put our full focus to the x86 part of the review, and call
  it a day as per TPM changes. Further, even if Trenchboot turned out to
  be empty lottery the worst possible outcome for TPM driver is that
  things get cleaned up a bit"

* tag 'for-next-tpm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm-buf: Add TPM buffer support header for standalone reuse
  tpm-buf: Memory-safe allocations
  tpm-buf: Remove chip parameter from tpm_buf_append_handle()
  tpm-buf: Merge TPM_BUF_BOUNDARY_ERROR and TPM_BUF_OVERFLOW
  tpm: Remove main TPM header from TPM event log header
  tpm: Move platform specific definitions to the new PTP header
  tpm: Move TPM common base definitions to the command header
  tpm: Move TPM2 specific definitions to the command header
  tpm: Move TPM1 specific definitions to the command header
  tpm: Initial step to reorganize TPM public headers
  tpm: st33zp24: Validate locality read result
  tpm: st33zp24: Return zero on status read failure
  tpm: tpm_tis_spi: fix nodef CR50 tpm_tis_spi_resume is null
  tpm: atmel: depend on X86
  tpm: Remove redundant dev_err()
  tpm: tpm_i2c_nuvoton: disable IRQ on wait timeout
2026-08-28 09:36:27 -07:00
Linus Torvalds
9df08cdd33 This push fixes a memory allocation overrun in crypto acomp.
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Merge tag 'v7.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "Fix a memory allocation overrun in crypto acomp"

* tag 'v7.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: acomp - allocate async request context when cloning
2026-08-28 09:28:40 -07:00
Linus Torvalds
344be13211 ACPI support fix for 7.3-rc1
Revert an incomplete recent commit that may cause ACPI device
 power management to stop working.
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Merge tag 'acpi-7.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI support fix from Rafael Wysocki:
 "Revert an incomplete recent commit that may cause ACPI device power
  management to stop working"

* tag 'acpi-7.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: scan: Defer device power initialization"
2026-08-28 09:09:01 -07:00
Linus Torvalds
9d607ae0f7 arm64 fixes for -rc1
- Fix address handling of final memory region in ptdump
 
 - Fix emulation of decrementing load/store multiple from 32-bit task
 
 - Fix SCTLR context-switching for store-only MTE mode
 
 - Fix numerous issues in MTE selftests
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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:
 "A mixture of ptdump, compat and MTE fixes that came in during the
  merge window:

   - Fix address handling of final memory region in ptdump

   - Fix emulation of decrementing load/store multiple from 32-bit task

   - Fix SCTLR context-switching for store-only MTE mode

   - Fix numerous issues in MTE selftests"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  selftests/arm64: Add MTE test config fragment
  selftests/arm64: Fix MTE prctl TAP plan
  selftests/arm64: Treat KSM merge_across_nodes as optional
  selftests/arm64: Print missing MTE TAP headers
  arm64: compat: Fix decrementing LDM/STM alignment emulation
  arm64: process: Fix context switching MTE store-only tag check
  KVM: arm64: ptdump: Flush the last region
  arm64: ptdump: Make note_page_flush() range aware
2026-08-28 09:02:04 -07:00
Linus Torvalds
72ecc30d60 Xtensa updates for v7.3
- use strnlen() to improve iss_console_write()
 - remove unused function setup_profiling_timer()
 - fix CONFIG_XTENSA_CALIBRATE_CCOUNT macro name in comment
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Merge tag 'xtensa-20260828' of https://github.com/jcmvbkbc/linux-xtensa

Pull Xtensa updates from Max Filippov:

 - use strnlen() to improve iss_console_write()

 - remove unused function setup_profiling_timer()

 - fix CONFIG_XTENSA_CALIBRATE_CCOUNT macro name in comment

* tag 'xtensa-20260828' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: remove unused setup_profiling_timer function
  xtensa: correct CONFIG_XTENSA_CALIBRATE_CCOUNT macro name in comment
  tty: xtensa/iss: use strnlen to improve iss_console_write
2026-08-28 08:55:47 -07:00
Linus Torvalds
874b43b9f3 m68knommu: updates and fixes for v7.3
, new defconfigs for 2 more ColdFire boards
 . change to use linux/gpio/legacy.h
 . add platform setup for reset device of the 5441x SoC boards
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Merge tag 'm68knommu-for-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Pull m68knommu updates from Greg Ungerer:
 "This includes a couple more new defconfigs to improve test build
  coverage, changes to use the more correct linux/gpio/legacy.h and
  platform setup for the reset device of the ColdFire 5441x SoC
  hardware.

   - new defconfigs for 2 more ColdFire boards

   - change to use linux/gpio/legacy.h

   - add platform setup for reset device of the 5441x SoC boards"

* tag 'm68knommu-for-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: coldfire/5441x: register mcf-rcm-reset platform device
  m68k/coldfire: replace linux/gpio.h inclusions
  m68k: defconfig: add config for M5282EVB board
  m68k: defconfig: add config for M52358EVB board
2026-08-28 08:44:36 -07:00
Dave Airlie
a8b02aa825 amd-drm-next-7.3-2026-08-27:
amdgpu:
 - MES fixes
 - Userq fixes
 - UVD fix
 - VCE 3 fix
 - Enforce isolation fix
 - HPD fix for VGA/LVDS
 - DML fix
 - DCN 6 fixes
 - DC gpu reset fix
 
 amdkfd:
 - CU occupancy for GFX 11
 - CU occupancy for GFX 12/12.1
 - Queue bounds checking fix
 - SVM fixes
 - CRIU bounds checking fix
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Merge tag 'amd-drm-next-7.3-2026-08-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-7.3-2026-08-27:

amdgpu:
- MES fixes
- Userq fixes
- UVD fix
- VCE 3 fix
- Enforce isolation fix
- HPD fix for VGA/LVDS
- DML fix
- DCN 6 fixes
- DC gpu reset fix

amdkfd:
- CU occupancy for GFX 11
- CU occupancy for GFX 12/12.1
- Queue bounds checking fix
- SVM fixes
- CRIU bounds checking fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260827203610.3249084-1-alexander.deucher@amd.com
2026-08-28 13:31:33 +10:00
Dave Airlie
1dd31281a6 Cross-subsystem Changes:
- i2c global register definitions as dependency for xe/i2c fixes. (Heikki)
 
 Driver Changes:
 - Media workardound (Daniele)
 - Add CCS to gt_idle debugfs print (Bala)
 - Page fault related fix (Arvind)
 - i2c related fixes (Heikki)
 - System Controller mailbox bit fix (Anoop)
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Merge tag 'drm-xe-next-fixes-2026-08-27' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Cross-subsystem Changes:
- i2c global register definitions as dependency for xe/i2c fixes. (Heikki)

Driver Changes:
- Media workardound (Daniele)
- Add CCS to gt_idle debugfs print (Bala)
- Page fault related fix (Arvind)
- i2c related fixes (Heikki)
- System Controller mailbox bit fix (Anoop)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/apBrVgvZwIRIfuhR@intel.com
2026-08-28 13:14:52 +10:00
Ivan Immanuel Shaji
5eab74874d ring-buffer: Stop remote reader update when page swap fails
The remote swap_reader_page callback can return -EBUSY when the writer
moves the head before the remote catches it, particularly during an event
storm on a small buffer. __rb_get_reader_page_from_remote() currently
warns about that failure but continues with the unchanged reader ID and
rearranges the local page list as though the swap succeeded.

Handle the callback failure as a recoverable error. Report it with
pr_warn_ratelimited() and return NULL. Callers already handle a NULL reader
page as a failed attempt. This avoids splicing the same page as both the
previous and new reader without flooding the log under contention.

Cc: stable@vger.kernel.org
Fixes: 2e67fabd8b ("ring-buffer: Introduce ring-buffer remotes")
Link: https://patch.msgid.link/20260825-kernel-patch-1-v2-2-bb3461807a32@gmail.com
Assisted-by: LLM sparse
Signed-off-by: Ivan Immanuel Shaji <ivanimmanuel1234@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-08-27 21:31:51 -04:00
Ivan Immanuel Shaji
e0d3aed7b1 tracing: Fix retry exhaustion in simple ring buffer reader swap
simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
post-decrements it only after a failed link replacement. On the final
attempt, a successful replacement leaves retry at zero, while a failed
replacement leaves it at -1.

The current !retry test reverses both outcomes. It returns an error after
a successful final replacement, leaving the link update complete but the
reader bookkeeping unfinished. After a failed final replacement, it
falls through and updates the head and reader pointers as though the
replacement succeeded, which can corrupt the ring.

Treat only a negative counter as exhaustion and return the documented
-EBUSY error.

Cc: stable@vger.kernel.org
Fixes: 34e5b958bd ("tracing: Introduce simple_ring_buffer")
Link: https://patch.msgid.link/20260825-kernel-patch-1-v2-1-bb3461807a32@gmail.com
Assisted-by: LLM sparse
Reviewed-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Ivan Immanuel Shaji <ivanimmanuel1234@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-08-27 21:31:41 -04:00
Jérémy Jean
390f6bd858 tracing/user_events: Clear copied tracing state before fork duplication
dup_task_struct() copies user_event_mm from the parent into the child,
without grabbing a reference to it. user_event_mm_dup() should
replace it, but it leaves that copied pointer unmodified if
user_event_mm_alloc() fails.

When the child exits, user_event_mm_remove() decrements a reference
the child never owned, which ultimately frees user_event_mm, while
the parent still as a stale pointer to it. This creates a UAF, which
KASAN reports as:

    BUG: KASAN: slab-use-after-free in
    current_user_event_mm+0x51/0x1d0 Write of size 4 at addr
    ffff888005010d30 by task init/44

    Call Trace:
     <TASK>
     kasan_report+0xce/0x100
     kasan_check_range+0x10f/0x1e0
     current_user_event_mm+0x51/0x1d0
     user_events_ioctl+0x82e/0x15c0
     __x64_sys_ioctl+0x139/0x1c0
     do_syscall_64+0xce/0x450
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

    Allocated by task 44:
     __kasan_kmalloc+0x8f/0xa0
     __kmalloc_cache_noprof+0x180/0x3a0
     user_event_mm_alloc+0x3c/0x1f0
     current_user_event_mm+0x88/0x1d0

    Freed by task 42:
     __kasan_slab_free+0x43/0x70
     kfree+0x13a/0x390
     process_one_work+0x696/0xf90
     worker_thread+0x420/0xba0

The fix simply clears the copied pointer before any possible failure.
In case of failure, the child then has nothing to free.

Cc: stable@vger.kernel.org
Fixes: 7235759084 ("tracing/user_events: Use remote writes for event enablement")
Link: https://patch.msgid.link/20260827184321.2964601-2-Jeremy.Jean@oss.cyber.gouv.fr
Assisted-by: Codex:gpt-5
Signed-off-by: Jérémy Jean <Jeremy.Jean@oss.cyber.gouv.fr>
Reviewed-by: Bradley Morgan <brads@mainlining.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-08-27 21:30:22 -04:00
Vasileios Almpanis
b15b548d52
i2c: core: fix debugfs UAF on adapter removal
i2c_del_adapter() frees the adapter's debugfs directory before it
unregisters the adapter device, but the new_device sysfs attribute
stays writable until device_del(). A write racing with removal still
reaches i2c_device_probe(), which passes the freed adap->debugfs to
debugfs_create_dir() as the new client's parent:

  BUG: KASAN: slab-use-after-free in lookup_noperm_common+0x407/0x430
  Read of size 4 at addr ffff88803ef87810 by task syz.0.61/6090
   lookup_noperm_common+0x407/0x430
   simple_start_creating+0x9c/0x110
   debugfs_start_creating+0xdb/0x1a0
   debugfs_create_dir+0x24/0x350
   i2c_device_probe+0x814/0xbf0

It's technically possible to create a client after i2c_deregister_clients
has run. That client will never be unregistered and make
wait_for_completion hang.

Close the window by removing the new_device attribute at the start of
i2c_del_adapter(). device_remove_file() will drain any clients left.

Fixes: 73febd775b ("i2c: create debugfs entry per adapter")
Reported-by: syzbot+23ad911c819b923238b7@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=23ad911c819b923238b7
Signed-off-by: Vasileios Almpanis <vasilisalmpanis@gmail.com>
Cc: <stable@vger.kernel.org> # v6.8+
Tested-by: syzbot+23ad911c819b923238b7@syzkaller.appspotmail.com
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260812-i2c-v2-1-5efaab4c3334@gmail.com
2026-08-28 03:12:01 +02:00
Carlos Song
27c9445be8
i2c: imx-lpi2c: avoid accessing target registers on master-only controllers
Not all LPI2C controller instances implement the Target block.
Since commit 90311787f483 ("i2c: imx-lpi2c: reset controller in
probe stage"), the driver unconditionally resets both the Master
and Target blocks during probe.

On controllers that do not support target mode, accessing the
Target registers triggers an asynchronous SError and prevents the
driver from probing successfully. For example on i.MX8QM:

  SError Interrupt on CPU2, code 0x00000000bf000002 -- SError
  Hardware name: Freescale i.MX8QM MEK (DT)
  pc : lpi2c_imx_probe+0x280/0x594
  lr : lpi2c_imx_probe+0x224/0x594
  Kernel panic - not syncing: Asynchronous SError Interrupt

The VERID register is implemented in the Master block and can be
safely accessed on all controller variants. Its FEATURE field
indicates whether target mode is supported.

Read VERID during probe and use it to determine whether the
Target block is present. Only access Target registers when target
mode is supported and reject target registration requests with
-EOPNOTSUPP otherwise.

Fixes: 90311787f483 ("i2c: imx-lpi2c: reset controller in probe stage")
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260803032705.2250373-1-carlos.song@oss.nxp.com
2026-08-28 03:00:32 +02:00
Guangshuo Li
f98d498648
i2c: qcom-cci: fix autosuspend cleanup
cci_probe() calls pm_runtime_use_autosuspend(), but the remove path
does not call the matching pm_runtime_dont_use_autosuspend() before
disabling runtime PM.

If the autosuspend delay is set to a negative value while autosuspend
is enabled, the runtime PM core increments usage_count to prevent
runtime suspend. Without undoing the autosuspend setting during
teardown, this reference is not dropped and usage_count remains
unbalanced.

Use devm_pm_runtime_set_active_enabled() to manage the runtime PM
state. Its managed cleanup disables autosuspend and runtime PM and
restores the suspended state on probe failure and driver removal.
Remove the now redundant manual runtime PM cleanup.

This issue was found by manual code inspection.

Fixes: e517526195 ("i2c: Add Qualcomm CCI I2C driver")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Cc: <stable@vger.kernel.org> # v5.8+
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260812094425.3515179-1-lgs201920130244@gmail.com
2026-08-28 02:52:43 +02:00
Hongbo Yao
77549d01ed
i2c: designware: Enable interrupt mask workaround for HJMC3001
On HJMicro ARM64 servers, the DesignWare I2C controller does not
retrigger a pending interrupt if the interrupt status changes after
the current status bits have been cleared.

The issue is exposed under heavy system load when the corresponding
SPI is routed across sockets to a core in the remote socket. The
interrupt is then lost and the I2C transfer times out.

Enable ACCESS_INTR_MASK for HJMC3001. This toggles DW_IC_INTR_MASK
before returning from the interrupt handler and retriggers any
pending interrupt.

Fixes: 6816ce57c4 ("i2c: designware: Add a new ACPI HID for HJMC01 I2C controller")
Signed-off-by: Hongbo Yao <andy.xu@hj-micro.com>
Cc: <stable@vger.kernel.org> # v6.13+
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260826070547.268672-1-andy.xu@hj-micro.com
2026-08-28 02:38:00 +02:00
Kathiravan Thirumoorthy
a4f3fbccb6
i2c: qcom-geni: update frequency table to fix timing parameters
In IPQ5424, to meet the setup and hold timing requirements in the
standard mode, update the frequency table with the values recommended by
HW design team.

Also remove the stray space in the I2C_MAX_FAST_MODE_FREQ entry.

Fixes: 85c3453284 ("i2c: qcom-geni: fix I2C frequency table to achieve accurate bus rates")
Fixes: 506bb2ab00 ("i2c: qcom-geni: Support systems with 32MHz serial engine clock")
Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@oss.qualcomm.com>
Cc: <stable@vger.kernel.org> # v6.13+
Reviewed-by: Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260812-ipq5424_i2c_scl_updates-v2-1-e09cd39d01d7@oss.qualcomm.com
2026-08-28 02:27:57 +02:00
Alexandre Belloni
afce9701d6 MAINTAINERS: update rtc subsystem patchwork location
The RTC subsystem is migrating it patchwork to kernel.org.

Link: https://patch.msgid.link/202608212007582a463833@mail.local
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-08-27 23:35:24 +02:00
Linus Torvalds
1b78070aae Including fixes from Bluetooth, IPSec and Netfilter.
Current release - fix to a fix:
 
  - netfilter: ipset: remove need to allocate memory on delete operations
 
 Current release - regressions:
 
  - macb: drop CONFIG_OF #if block, fix build
 
 Previous releases - always broken:
 
  - stream of fixes for SCTP continues
 
  - inet: frags: strip GSO state from fragments before reassembly
 
  - virtio-net: ensure that TCP packets don't overflow gso_segs
 
  - tcp-ao: fix use-after-free of current_key on reconnect to another peer
 
  - page_pool: remove zone/policy GFP flags when allocating XArray entries
 
  - Bluetooth: L2CAP: reject accept queue add unless BT_LISTEN
 
  - tls: device: fix out-of-bounds write in tls_append_frag()
 
  - eth: bnxt:
    - ring the doorbell when SW USO exits early, avoid packets stuck in Tx
    - gate TPH enablement behind BNXT_SUPPORTS_QUEUE_API check, avoid users
      of older NICs seeing non-actionable warning messages
 
  - eth: qede: fix NULL pointer dereference in TPA fragment processing
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, IPSec and Netfilter.

  Current release - fix to a fix:

   - netfilter: ipset: remove need to allocate memory on delete operations

  Current release - regressions:

   - macb: drop CONFIG_OF #if block, fix build

  Previous releases - always broken:

   - stream of fixes for SCTP continues

   - inet: frags: strip GSO state from fragments before reassembly

   - virtio-net: ensure that TCP packets don't overflow gso_segs

   - tcp-ao: fix use-after-free of current_key on reconnect to another
     peer

   - page_pool: remove zone/policy GFP flags when allocating XArray
     entries

   - Bluetooth: L2CAP: reject accept queue add unless BT_LISTEN

   - tls: device: fix out-of-bounds write in tls_append_frag()

   - eth: bnxt:
      - ring the doorbell when SW USO exits early, avoid packets stuck
        in Tx
      - gate TPH enablement behind BNXT_SUPPORTS_QUEUE_API check, avoid
        users of older NICs seeing non-actionable warning messages

   - eth: qede: fix NULL pointer dereference in TPA fragment processing"

* tag 'net-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (216 commits)
  inet: frags: strip GSO state from fragments before reassembly
  net/sched: sch_htb: limit htb_classify inner-class filter hops
  selftests/net: packetdrill: add tcp_urg_ptr_retransmit
  tcp: fix corruption of urgent data on multi-segment retransmit
  usb: atm: usbatm: fix invalid ci_range initialization
  net: fec: only stop PTP if it was initialized
  slip: remove slip_hangup() to fix use-after-free in slip_receive_buf()
  net: bridge: mcast: fix use-after-free of a master VLAN's multicast context
  net/sched: bound qdisc_pkt_len to prevent qdisc soft lockup
  net: dsa: mxl862xx: enable assisted learning on CPU port
  net: stmmac: restore NET_IP_ALIGN in the RX DMA offset
  net: stmmac: drop gso_enabled_types and rely on netdev features
  net: stmmac: selftests: Don't test flow control for small rx fifos
  net: stmmac: selftests: Account for the UC filter list for filtering tests
  net: stmmac: dwxgmac: Account for the primary MAC address for UC filtering
  net: stmmac: dwmac4: Account for the primary MAC address for UC filtering
  net: stmmac: dwmac1000: Account for the primary MAC address for UC filtering
  net: stmmac: selftests: Check multiple MMC counters
  selftests: net: Fix slow configurations in big_tcp_tunnels.sh
  selftests: net: Lower threshold with csum offload off in big_tcp_tunnels.sh
  ...
2026-08-27 13:53:43 -07:00
Jakub Kicinski
4a9d62a877 netfilter pull request 26-08-27
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Merge tag 'nf-26-08-27' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Use DEBUG_NET_WARN_ON_ONCE() instead of WARN_ON() from the tproxy
   datapath, a recent bug found a way to reach WARN_ON from datapath
   due to insufficient validation of xt_TPROTO checkentry.
   From Fernando F. Mancera.

2) Similar to previous patch to replace WARN_ON_ONCE by
   DEBUG_NET_WARN_ON_ONCE() for connlimit. Not known issue, but
   since this patch has been around for a while, let's merge it.
   Also from Fernando.

3) Move nf_tables harware offload commit path after chain blob
   and audit to reduce chances of leaving the hardware in
   inconsistent state.

4) Add missing vzeroupper to nf_tables pipapo AVX2 to address
   performace degradation to later user of SSE code,
   from Eric Biggers.

5) Remove pr_debug() in x_tables extensions, a recent bogus found a
   way to print a unsanitized string in xt_IDLETIMER, many of these
   pr_debug() calls are there for historical reasons.

6) Use pr_info_ratelimited() in x_tables .checkentry.

7) Fix an imbalance in module refcount due to incorrect override
   expression logic with sets. Remove unnecessary clone in control
   plane, use the existing expressions provided by set or dynset
   expression. Release override expressions only.

8) Tigthen nf_tables device name removal, it is possible to remove
   prefix strings with exact device name. From Fernando F. Mancera.

9) Set on the set dead bit earlier, otherwise it is possible to
   call .commit on deleted sets. This also addresses the
   re-introduction of a bug.

* tag 'nf-26-08-27' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_tables: remove leftover set_update_list
  netfilter: nf_tables: set on dead bit when performing early element removal
  netfilter: nf_tables: skip double clone set expressions on element insert
  netfilter: x_tables: replace pr_{info,err}() by pr_info_ratelimited()
  netfilter: x_tables: remove pr_debug
  netfilter: nft_set_pipapo_avx2: add missing vzeroupper
  netfilter: nf_tables: move hardware offload step after building the chain blob
  netfilter: conncount: use DEBUG_NET_WARN_ON_ONCE on reaching count limit
  netfilter: tproxy: use DEBUG_NET_WARN_ON_ONCE for protocol fallbacks
====================

Link: https://patch.msgid.link/20260827141733.423453-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-27 13:13:18 -07:00
Linus Torvalds
3ba13f5e71 Devicetree fixes for v7.3, part 1:
- Fix possible out-of-bounds access in of_alias_scan()
 
 - Fix refcount leak in of_irq_get_affinity()
 
 - Add Qualcomm SPMI PMIC haptics input which is already referenced
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Merge tag 'devicetree-fixes-for-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fix possible out-of-bounds access in of_alias_scan()

 - Fix refcount leak in of_irq_get_affinity()

 - Add Qualcomm SPMI PMIC haptics input which is already referenced

* tag 'devicetree-fixes-for-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: fix out-of-bounds read in of_alias_scan() stem parser
  of/irq: Fix device node refcount leak in of_irq_get_affinity()
  dt-bindings: input: Add Qualcomm SPMI PMIC haptics
2026-08-27 12:53:43 -07:00
Xinyang Ge
d5dc1e69fd inet: frags: strip GSO state from fragments before reassembly
A virtio_net_hdr (tun/tap, or AF_PACKET with PACKET_VNET_HDR) can mark
an IPv4 or IPv6 fragment as GSO; nothing relates gso_type to frag_off.
inet_frag_reasm_prepare()/inet_frag_reasm_finish() keep the first
fragment's skb as the head of the reassembled datagram, including its
shinfo->gso_size/gso_type/gso_segs, and chain the remaining fragments
on frag_list with whatever linear/paged layout they arrived with.

After ip_defrag() (ip_local_deliver(), nf_defrag_ipv4, ...) the
reassembled skb therefore still claims to be GSO (SKB_GSO_DODGY), and
the next software segmentation point - udp_rcv_segment() on local
delivery, validate_xmit_skb(), or the ip_finish_output_gso() slow
path - hands it to skb_segment(). skb_segment()'s frag_list walk
assumes GRO-shaped input and hits one of its BUG_ON()s. Two writes to
a tap by an unprivileged user in its own userns are enough:

  kernel BUG at net/core/skbuff.c:4899!
  Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
  CPU: 0 UID: 1000 PID: 82 Comm: poc Not tainted 7.2.0-pentest+ #2
  RIP: 0010:skb_segment+0x20ca/0x48b0
  Call Trace:
   <TASK>
   __udp_gso_segment+0x29a/0x27d0
   udp4_ufo_fragment+0x458/0x6c0
   inet_gso_segment+0x429/0x1340
   skb_mac_gso_segment+0x233/0x4f0
   __skb_gso_segment+0x308/0x660
   udp_queue_rcv_skb+0x440/0xad0
   udp_unicast_rcv_skb+0xc7/0x2c0
   udp_rcv+0x16ce/0x2260
   ip_protocol_deliver_rcu+0x197/0x2d0
   ip_local_deliver+0x430/0x690
   ip_rcv+0x16f/0x1f0
   __netif_receive_skb_one_core+0x15e/0x1c0
   __netif_receive_skb+0x1e/0x110
   netif_receive_skb+0xf6/0x5c0
   tun_rx_batched.isra.0+0x3ab/0x790
   tun_get_user+0x17c3/0x3550
   tun_chr_write_iter+0xba/0x1b0
   vfs_write+0x646/0x1130
   </TASK>
  Kernel panic - not syncing: Fatal exception in interrupt

This runs with BH disabled, so it is a panic rather than an oops. The
same is reachable with CAP_NET_RAW in a netns where a defrag point
precedes a GSO point, and from a guest whose VMM forwards
virtio_net_hdr to a tap. The SKB_GSO_DODGY frag_list checks added by
commit 3dcbdb134f ("net: gso: Fix skb_segment splat when splitting
gso_size mangled skb having linear-headed frag_list") and by
commit 9e4b7a99a0 ("net: gso: fix panic on frag_list with mixed head
alloc types") do not cover it: page-backed heads skip them, and kmalloc
heads skip them when gso_size == skb_headlen(head), which the sender
controls.

An skb entering a frag queue is an IP fragment by definition and
cannot legitimately carry GSO state: GRO does not merge fragments and
the stack segments before it fragments, so only untrusted sources are
affected. This has been reachable since
commit f43798c276 ("tun: Allow GSO using virtio_net_hdr"), the first
path that let userspace attach GSO metadata to an IP fragment. Reset
the GSO fields of every fragment as it is queued, in
inet_frag_queue_insert(), which IPv4, IPv6, nf_conntrack_reasm and
6lowpan reassembly share; then neither the head nor the frag_list
members of the reassembled skb carry them (the members matter too:
the ip_do_fragment()/ip6_fragment() fast paths send them out as they
are). The head may remain CHECKSUM_PARTIAL; that is already accepted
on receive and resolved by skb_checksum_help() in
ip_do_fragment()/ip6_fragment() on forward.

Tested on top of net.git (dc4b95b8fe), x86_64: the tap reproducer
above, two further IPv4 frag_list geometries that reach
BUG_ON(i >= nfrags) and BUG_ON(!list_skb->head_frag), and an IPv6
fragment-header variant (udp6_ufo_fragment()) each panic the unpatched
kernel; with this patch all four datagrams are delivered intact and
nothing is logged.

Fixes: f43798c276 ("tun: Allow GSO using virtio_net_hdr")
Cc: stable@kernel.org
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Xinyang Ge <xinyang@anthropic.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/937926e509f2acd8e0e66520dc2b30fd6b4d1687.1787839506.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-27 12:52:10 -07:00
Jamal Hadi Salim
729c4896ab net/sched: sch_htb: limit htb_classify inner-class filter hops
htb_classify() follows each filter-selected inner class by switching
to cl->filter_list, but never bounds the number of hops. A filter on
an inner class can point back to itself or to another inner class that
points back, creating an infinite loop in the packet classification
path with the qdisc lock held and BH disabled — a soft lockup / panic
from a single packet.

Bound the traversal with a hop counter and drop the packet with a
rate-limited warning once the bound is exceeded. The counter is
incremented at the point the inner filter chain is picked up, after the
TC_ACT_* switch has consumed the classifier verdict, so a terminal
TC_ACT_QUEUED/STOLEN/TRAP on the last permitted chain still sets *qerr
to __NET_XMIT_STOLEN and the packet is not charged as a drop by this
qdisc or its parent.

The bound is TC_HTB_MAXDEPTH, taken from HTB's own parameters rather than
from the qdisc hierarchy depth limit. Class levels run from 0 to
TC_HTB_MAXDEPTH - 1, so a traversal that strictly descends in level can
take at most TC_HTB_MAXDEPTH hops. That descent is what a sane
configuration does, but it is assumed here rather than enforced:
htb_find() resolves a classid against every class in the qdisc, so a
filter may equally select a sibling or an ancestor. The normal
root -> inner -> leaf path takes a single hop, so the bound does not
affect legitimate classification.

htb_classify() can now return NULL irrespective of CONFIG_NET_CLS_ACT,
whereas previously every NULL return sat inside that ifdef. The NULL
handler in htb_enqueue() therefore cannot stay conditional either, so
drop the ifdef around it. This matches hfsc_enqueue(), which has always
handled a NULL class unconditionally. Without it, a kernel built
without actions would dereference a NULL class instead of dropping.

Conditions to recreate the bug:
- CONFIG_NET_SCHED, CONFIG_NET_SCH_HTB, CONFIG_NET_CLS_U32,
  CONFIG_LOCKUP_DETECTOR.
- Create an HTB qdisc on a device (e.g. lo), add an inner class
  1:1 with a leaf child 1:10, install a root u32 filter selecting
  1:1, and an inner-class u32 filter on 1:1 also selecting 1:1.
- Send one packet (ping). On the unfixed kernel the classify loop
  spins with the qdisc lock held; with softlockup_panic=1 it panics.
- Reachable from unprivileged user via unshare -Urn (CAP_NET_ADMIN).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Vega <vega@nebusec.ai>
Co-developed-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260826143339.271935-1-victor@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-27 12:47:58 -07:00
Jiayuan Chen
6a7e91f890 selftests/net: packetdrill: add tcp_urg_ptr_retransmit
Drive a connection into urgent mode and force a multi-segment retransmit,
checking that each retransmitted segment keeps its own urg_ptr.

The test asserts the fixed behaviour: the hole is retransmitted as two
independent skbs, each with its own urg_ptr (5001 and 4001) and no PSH.
An unpatched kernel instead sends one super-skb whose GSO split copies
urg_ptr onto the second segment and also sets PSH there, so on an unpatched
kernel the mismatch shows up on the PSH bit (actual P.U ... urg 5001) before
the urg_ptr:

	tcp_urg_ptr_retransmit.pkt:63: live packet field tcp_psh:
		expected: 0 (0x0) vs actual: 1 (0x1)
	script packet:  .U 1001:2001(1000) ack 1
	actual packet:  P.U 1001:2001(1000) ack 1 win 1050

After the fix the retransmit carries a per-segment urg_ptr and the test
passes.

Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260826141145.67823-2-jiayuan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-27 12:47:34 -07:00
Jiayuan Chen
ce2b807f42 tcp: fix corruption of urgent data on multi-segment retransmit
On the normal xmit path, while in urgent mode we refuse to build a
multi-segment TSO packet, so every segment gets its own urg_ptr:

	/* tcp_write_xmit() */
	limit = mss_now;
	if (tso_segs > 1 && !tcp_urg_mode(tp))
		limit = tcp_mss_split_point(...);

The retransmit path has no such guard. __tcp_retransmit_skb() builds a
segs > 1 skb and hands it to the GSO layer, which only advances th->seq
per segment and copies urg_ptr verbatim:

	/* __tcp_retransmit_skb() */
	len = cur_mss * segs;		/* segs > 1, no urg_mode check */
	...
	/* tcp_gso_segment(): bumps seq only, urg_ptr is copied */

urg_ptr is an offset from the segment's own seq, so a copied value points
at a different place on each segment. The receiver rebuilds the absolute
urgent seq as seg.seq + urg_ptr, so it walks a moving urgent point instead
of the one OOB byte:

	seg1  seq 1     urg_ptr 5001 -> urgent @ 5001   (ok)
	seg2  seq 1001  urg_ptr 5001 -> urgent @ 6001   (wrong, +MSS)
	seg3  seq 2001  urg_ptr 5001 -> urgent @ 7001   (wrong, +2*MSS)

The real OOB byte is never pointed at, so the receiver stops splicing it
out and delivers it as normal in-band data, corrupting the stream.

Guard the retransmit length like the xmit path: keep segs = 1 while in
urgent mode.

Fixes: 10d3be5692 ("tcp-tso: do not split TSO packets at retransmit time")
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260826141145.67823-1-jiayuan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-27 12:47:34 -07:00