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 |
|---|---|---|
| arm | ||
| interface | ||
| acpi.h | -rw-r--r-- | 2.5 KB |
| balloon.h | -rw-r--r-- | 1.0 KB |
| events.h | -rw-r--r-- | 4.7 KB |
| features.h | -rw-r--r-- | 502 bytes |
| grant_table.h | -rw-r--r-- | 11.1 KB |
| hvc-console.h | -rw-r--r-- | 518 bytes |
| hvm.h | -rw-r--r-- | 1.4 KB |
| mem-reservation.h | -rw-r--r-- | 1.5 KB |
| page.h | -rw-r--r-- | 1.3 KB |
| pci.h | -rw-r--r-- | 617 bytes |
| platform_pci.h | -rw-r--r-- | 2.0 KB |
| swiotlb-xen.h | -rw-r--r-- | 483 bytes |
| xen-front-pgdir-shbuf.h | -rw-r--r-- | 2.3 KB |
| xen-ops.h | -rw-r--r-- | 7.0 KB |
| xen.h | -rw-r--r-- | 1.9 KB |
| xenbus.h | -rw-r--r-- | 8.8 KB |
| xenbus_dev.h | -rw-r--r-- | 1.8 KB |
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