Re: [selftests/lkdtm] 84d8cf25b0: kernel_BUG_at_drivers/misc/lkdtm/bugs.c

From: Kees Cook
Date: Wed Jun 23 2021 - 10:30:34 EST


On Wed, Jun 23, 2021 at 10:35:50PM +0800, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: 84d8cf25b0f80da0ac229214864654a7662ec7e4 ("[PATCH v2] selftests/lkdtm: Use /bin/sh not $SHELL")
> url: https://github.com/0day-ci/linux/commits/Kees-Cook/selftests-lkdtm-Use-bin-sh-not-SHELL/20210619-105959
> base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next
>
> in testcase: kernel-selftests
> version: kernel-selftests-x86_64-f8879e85-1_20210618
> with following parameters:
>
> group: lkdtm
> ucode: 0xe2

Heh. Yes, this is working as intended. :) Most of the lkdtm tests will
trigger Oopses, and this is by design: it is checking that the kernel
catches bad conditions and freaks out appropriately.

-Kees

--
Kees Cook