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(parent: e3d72e8) | patch
x86/mce: Check regs before accessing it
authorBorislav Petkov <bp@suse.de>
Fri, 17 Dec 2021 15:49:25 +0000 (16:49 +0100)
committerBorislav Petkov <bp@suse.de>
Mon, 20 Dec 2021 10:41:02 +0000 (11:41 +0100)
commit1acd85feba81084fcef00b73fc1601e42b77c5d8
treef5a39a5f3974870a599097ff5650c56b28919571tree | snapshot
parente3d72e8eee53c55835ab4664920d83400ff5d6c2commit | diff
x86/mce: Check regs before accessing it

Commit in Fixes accesses pt_regs before checking whether it is NULL or
not. Make sure the NULL pointer check happens first.

Fixes: 0a5b288e85bb ("x86/mce: Prevent severity computation from being instrumented")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20211217102029.GA29708@kili
arch/x86/kernel/cpu/mce/severity.c diff | blob | history
wrapfs-5.3.y