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x86/srso: Add SRSO mitigation for Hygon processors

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commit a5ef7d68ce upstream.

Add mitigation for the speculative return stack overflow vulnerability
which exists on Hygon processors too.

Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/tencent_4A14812842F104E93AA722EC939483CEFF05@qq.com
Signed-off-by: Ashwin Dayanand Kamat <ashwin.kamat@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pu Wen
2023-09-28 14:59:16 +08:00
committed by Greg Kroah-Hartman
parent af47e6a95e
commit e7ea043bc3
1 changed files with 1 additions and 1 deletions
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arch/x86/kernel/cpu/common.c
+1 -1
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@@ -1177,7 +1177,7 @@ static const struct x86_cpu_id cpu_vuln_blacklist[] __initconst = {
VULNBL_AMD(0x15, RETBLEED),
VULNBL_AMD(0x16, RETBLEED),
VULNBL_AMD(0x17, RETBLEED | SRSO),
VULNBL_HYGON(0x18, RETBLEED),
VULNBL_HYGON(0x18, RETBLEED | SRSO),
VULNBL_AMD(0x19, SRSO),
{}
};