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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-20 18:40:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-20 18:40:45 -0800 |
| commit | 8a68bd3e9ff6f480fc03369023a1d981cb803079 (patch) | |
| tree | 96f1cc5bae1ef0a63628afff7d108b074668d20f /arch/x86/include/asm | |
| parent | 572640f0c0d6c681104880090dc0560b69c9d0e6 (diff) | |
| parent | ce3ba2af9695e4bd64d797e0026321e5dca29dd3 (diff) | |
Merge tag 'x86-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 core updates from Ingo Molnar:
- Clean up the signal frame layout tests
- Suppress KMSAN false positive reports in arch_within_stack_frames()
* tag 'x86-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Suppress KMSAN reports in arch_within_stack_frames()
x86/signal/compat: Move sigaction_compat_abi() to signal_64.c
x86/signal: Move siginfo field tests
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index f0cb881c1d69..f1cccba52eb9 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -163,7 +163,12 @@ struct thread_info { * GOOD_FRAME if within a frame * BAD_STACK if placed across a frame boundary (or outside stack) * NOT_STACK unable to determine (no frame pointers, etc) + * + * This function reads pointers from the stack and dereferences them. The + * pointers may not have their KMSAN shadow set up properly, which may result + * in false positive reports. Disable instrumentation to avoid those. */ +__no_kmsan_checks static inline int arch_within_stack_frames(const void * const stack, const void * const stackend, const void *obj, unsigned long len) |