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 |
|---|---|---|
| platform | ||
| acbuffer.h | -rw-r--r-- | 8.9 KB |
| acconfig.h | -rw-r--r-- | 7.4 KB |
| acexcep.h | -rw-r--r-- | 16.9 KB |
| acnames.h | -rw-r--r-- | 2.2 KB |
| acoutput.h | -rw-r--r-- | 16.4 KB |
| acpi.h | -rw-r--r-- | 1.3 KB |
| acpi_bus.h | -rw-r--r-- | 22.6 KB |
| acpi_drivers.h | -rw-r--r-- | 2.6 KB |
| acpi_io.h | -rw-r--r-- | 723 bytes |
| acpi_lpat.h | -rw-r--r-- | 1.2 KB |
| acpi_numa.h | -rw-r--r-- | 944 bytes |
| acpiosxf.h | -rw-r--r-- | 11.3 KB |
| acpixf.h | -rw-r--r-- | 30.7 KB |
| acrestyp.h | -rw-r--r-- | 19.0 KB |
| actbl.h | -rw-r--r-- | 18.3 KB |
| actbl1.h | -rw-r--r-- | 43.2 KB |
| actbl2.h | -rw-r--r-- | 68.9 KB |
| actbl3.h | -rw-r--r-- | 22.0 KB |
| actypes.h | -rw-r--r-- | 42.0 KB |
| acuuid.h | -rw-r--r-- | 3.4 KB |
| apei.h | -rw-r--r-- | 1.4 KB |
| battery.h | -rw-r--r-- | 594 bytes |
| button.h | -rw-r--r-- | 401 bytes |
| cppc_acpi.h | -rw-r--r-- | 4.6 KB |
| ghes.h | -rw-r--r-- | 3.6 KB |
| hed.h | -rw-r--r-- | 370 bytes |
| nfit.h | -rw-r--r-- | 351 bytes |
| pcc.h | -rw-r--r-- | 807 bytes |
| pdc_intel.h | -rw-r--r-- | 1.0 KB |
| processor.h | -rw-r--r-- | 11.8 KB |
| reboot.h | -rw-r--r-- | 201 bytes |
| video.h | -rw-r--r-- | 2.9 KB |
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