x86/ibt: Handle FineIBT in handle_cfi_failure()

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Sami reminded me that FineIBT failure does not hook into the regular
CFI failure case, and as such CFI_PERMISSIVE does not work.

Reported-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lkml.kernel.org/r/20250214092619.GB21726@noisy.programming.kicks-ass.net

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Peter Zijlstra 2025-02-13 12:45:47 +01:00

parent 306859de59

commit 882b86fd4e

3 changed files with 59 additions and 4 deletions

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11

arch/x86/include/asm/cfi.h

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30

arch/x86/kernel/alternative.c

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22

arch/x86/kernel/cfi.c

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