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(parent: 50897c9) | patch
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
authorPrathyushi Nangia <prathyushi.nangia@amd.com>
Tue, 9 Dec 2025 16:01:33 +0000 (10:01 -0600)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 12 May 2026 03:06:36 +0000 (20:06 -0700)
commitc21b90f77687075115d989e53a8ec5e2bb427ab1
tree60948ff6c7356965619aa814be82b4ad61a93515tree | snapshot
parent50897c955902c93ae71c38698abb910525ebdc89commit | diff
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache

Make sure resources are not improperly shared in the op cache and
cause instruction corruption this way.

Signed-off-by: Prathyushi Nangia <prathyushi.nangia@amd.com>
Co-developed-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/include/asm/msr-index.h diff | blob | blame | history
arch/x86/kernel/cpu/amd.c diff | blob | blame | history
tools/arch/x86/include/asm/msr-index.h diff | blob | blame | history
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