Messages in this thread | | | From | Kees Cook <> | Subject | Re: [PATCH v2] lkdtm/bugs: add test for panic() with stuck secondary CPUs | Date | Fri, 22 Sep 2023 20:54:18 -0700 |
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On Thu, 21 Sep 2023 17:16:34 +0100, Mark Rutland wrote: > Upon a panic() the kernel will use either smp_send_stop() or > crash_smp_send_stop() to attempt to stop secondary CPUs via an IPI, > which may or may not be an NMI. Generally it's preferable that this is an > NMI so that CPUs can be stopped in as many situations as possible, but > it's not always possible to provide an NMI, and there are cases where > CPUs may be unable to handle the NMI regardless. > > [...]
I added a line to tests.tst and applied this to for-next/hardening, thanks!
[1/1] lkdtm/bugs: add test for panic() with stuck secondary CPUs https://git.kernel.org/kees/c/5fb07db970cf
Take care,
-- Kees Cook
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