On Wed, Jul 20, 2022 at 09:48:24AM +0200, Greg KH wrote:
On Tue, Jul 19, 2022 at 09:15:56PM -0400, Sasha Levin wrote:
From: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>
[ Upstream commit 6b80b59b3555706508008f1f127b5412c89c7fd8 ]
Report that AMD x86 CPUs are vulnerable to the RETBleed (Arbitrary
Speculative Code Execution with Return Instructions) attack.
[peterz: add hygon]
[kim: invert parity; fam15h]
Co-developed-by: Kim Phillips <kim.phillips@xxxxxxx>
Signed-off-by: Kim Phillips <kim.phillips@xxxxxxx>
Signed-off-by: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Reviewed-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/kernel/cpu/bugs.c | 13 +++++++++++++
arch/x86/kernel/cpu/common.c | 19 +++++++++++++++++++
drivers/base/cpu.c | 8 ++++++++
include/linux/cpu.h | 2 ++
5 files changed, 43 insertions(+)
This part of the larger retbleed series already queued up, so no need to
add it again.
All of these weren't part of anything that was queued up. I've actually
ended up queueing this one up since it was a dependency for a patch with
a Fixes tag, but all of this AUTOSEL batch wasn't part of the retbleed
series you've queued up a week ago.
--
Thanks,
Sasha
