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(parent: 983d7f2) | patch
x86/speculation: Fix SPEC_CTRL write on SMT state change
authorJosh Poimboeuf <jpoimboe@kernel.org>
Tue, 14 Jun 2022 21:16:07 +0000 (23:16 +0200)
committerThadeu Lima de Souza Cascardo <cascardo@canonical.com>
Tue, 19 Jul 2022 19:20:05 +0000 (16:20 -0300)
commit827588826b016d49f95fb509558bf981e8f3765f
tree5902664dc0ea152291fe9d1078f7510492e7ad25tree
parent983d7f228ccde59d7aaebf07570a514c1478f0cbcommit | diff
x86/speculation: Fix SPEC_CTRL write on SMT state change

commit 56aa4d221f1ee2c3a49b45b800778ec6e0ab73c5 upstream.

If the SMT state changes, SSBD might get accidentally disabled.  Fix
that.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
CVE-2022-29900
CVE-2022-29901
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
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