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Borislav Petkov (AMD) 0548529af2 x86/CPU: Fix FPDSS on Zen1 
commit e55d98e775 upstream.

Zen1's hardware divider can leave, under certain circumstances, partial
results from previous operations.  Those results can be leaked by
another, attacker thread.

Fix that with a chicken bit.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-04-18 10:33:11 +02:00
..
asm x86/CPU: Fix FPDSS on Zen1 2026-04-18 10:33:11 +02:00
uapi/asm KVM: x86: implement KVM_GUESTDBG_BLOCKIRQ 2021-08-20 16:06:37 -04:00