Revision f2d7b53c0153f2daa8bc8f1ff29b5a1e03a36458 authored by Alexander Potapenko on 02 November 2022, 10:15:00 UTC, committed by Alexander Potapenko on 02 November 2022, 10:55:06 UTC
There is a case in exc_invalid_op handler that is executed outside the irqentry_enter()/irqentry_exit() region when an UD2 instruction is used to encode a call to __warn(). In that case the `struct pt_regs` passed to the interrupt handler is never unpoisoned by KMSAN (this is normally done in irqentry_enter()), which leads to false positives inside handle_bug(). Use kmsan_unpoison_entry_regs() to explicitly unpoison those registers before using them. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Signed-off-by: Alexander Potapenko <glider@google.com>
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| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 366 bytes |
| advise.c | -rw-r--r-- | 2.1 KB |
| advise.h | -rw-r--r-- | 316 bytes |
| alloc_cache.h | -rw-r--r-- | 1.1 KB |
| cancel.c | -rw-r--r-- | 7.2 KB |
| cancel.h | -rw-r--r-- | 579 bytes |
| epoll.c | -rw-r--r-- | 1.5 KB |
| epoll.h | -rw-r--r-- | 213 bytes |
| fdinfo.c | -rw-r--r-- | 6.5 KB |
| fdinfo.h | -rw-r--r-- | 100 bytes |
| filetable.c | -rw-r--r-- | 4.4 KB |
| filetable.h | -rw-r--r-- | 2.1 KB |
| fs.c | -rw-r--r-- | 6.6 KB |
| fs.h | -rw-r--r-- | 929 bytes |
| io-wq.c | -rw-r--r-- | 33.4 KB |
| io-wq.h | -rw-r--r-- | 2.0 KB |
| io_uring.c | -rw-r--r-- | 105.9 KB |
| io_uring.h | -rw-r--r-- | 9.8 KB |
| kbuf.c | -rw-r--r-- | 13.2 KB |
| kbuf.h | -rw-r--r-- | 3.6 KB |
| msg_ring.c | -rw-r--r-- | 4.1 KB |
| msg_ring.h | -rw-r--r-- | 178 bytes |
| net.c | -rw-r--r-- | 35.9 KB |
| net.h | -rw-r--r-- | 2.2 KB |
| nop.c | -rw-r--r-- | 498 bytes |
| nop.h | -rw-r--r-- | 168 bytes |
| notif.c | -rw-r--r-- | 1.8 KB |
| notif.h | -rw-r--r-- | 896 bytes |
| opdef.c | -rw-r--r-- | 11.9 KB |
| opdef.h | -rw-r--r-- | 1.3 KB |
| openclose.c | -rw-r--r-- | 6.1 KB |
| openclose.h | -rw-r--r-- | 596 bytes |
| poll.c | -rw-r--r-- | 25.6 KB |
| poll.h | -rw-r--r-- | 1006 bytes |
| refs.h | -rw-r--r-- | 1.2 KB |
| rsrc.c | -rw-r--r-- | 31.4 KB |
| rsrc.h | -rw-r--r-- | 4.5 KB |
| rw.c | -rw-r--r-- | 27.1 KB |
| rw.h | -rw-r--r-- | 705 bytes |
| slist.h | -rw-r--r-- | 3.0 KB |
| splice.c | -rw-r--r-- | 2.9 KB |
| splice.h | -rw-r--r-- | 306 bytes |
| sqpoll.c | -rw-r--r-- | 9.5 KB |
| sqpoll.h | -rw-r--r-- | 753 bytes |
| statx.c | -rw-r--r-- | 1.6 KB |
| statx.h | -rw-r--r-- | 217 bytes |
| sync.c | -rw-r--r-- | 2.7 KB |
| sync.h | -rw-r--r-- | 460 bytes |
| tctx.c | -rw-r--r-- | 7.2 KB |
| tctx.h | -rw-r--r-- | 992 bytes |
| timeout.c | -rw-r--r-- | 16.6 KB |
| timeout.h | -rw-r--r-- | 1.2 KB |
| uring_cmd.c | -rw-r--r-- | 4.0 KB |
| uring_cmd.h | -rw-r--r-- | 494 bytes |
| xattr.c | -rw-r--r-- | 5.5 KB |
| xattr.h | -rw-r--r-- | 654 bytes |
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