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(parent: 6ebc5a7) | patch
x86/microcode/AMD: Concentrate patch verification
authorBorislav Petkov <bp@suse.de>
Thu, 19 Jul 2018 13:32:42 +0000 (15:32 +0200)
committerBorislav Petkov <bp@suse.de>
Mon, 19 Nov 2018 09:51:05 +0000 (10:51 +0100)
commitca0d618decd382f18a054d1915f32390828d11d5
treeff3b76052e8c87292a99aeb42a4ea3282ae16075tree | snapshot
parent6ebc5a7cc8e21c05e3a80bef829f6cd04a111538commit | diff
x86/microcode/AMD: Concentrate patch verification

Add a verify_patch() function which tries to sanity-check many aspects
of a microcode patch supplied by an outside container before attempting
a load.

Prepend all sub-functions' names which verify an aspect of a microcode
patch with "__".

Call it in verify_and_add_patch() *before* looking at the microcode
header.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: x86@kernel.org
Link: https://lkml.kernel.org/r/20181107170218.7596-7-bp@alien8.de
arch/x86/kernel/cpu/microcode/amd.c diff | blob | history
Linux Kernel Source Tree.