On Wed, 2024-05-15 at 17:26 +0200, Oleg Nesterov wrote: > > I think it will crash, there's explanation in the comment in > > tools/testing/selftests/x86/test_shadow_stack.c test > > OK, thanks... > > But test_shadow_stack.c doesn't do ARCH_PRCTL(ARCH_SHSTK_DISABLE) if > all the tests succeed ? Confused but nevermind.
The last test disables shadow stack as part of the test. So if it succeeds it doesn't need to disable the shadow stack to prevent underflow.
