6.5-stable review patch. If anyone has any objections, please let me know.
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From: Pu Wen puwen@hygon.cn
commit a5ef7d68cea1344cf524f04981c2b3f80bedbb0d 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.co... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/cpu/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1288,7 +1288,7 @@ static const struct x86_cpu_id cpu_vuln_ VULNBL_AMD(0x15, RETBLEED), VULNBL_AMD(0x16, RETBLEED), VULNBL_AMD(0x17, RETBLEED | SMT_RSB | SRSO), - VULNBL_HYGON(0x18, RETBLEED | SMT_RSB), + VULNBL_HYGON(0x18, RETBLEED | SMT_RSB | SRSO), VULNBL_AMD(0x19, SRSO), {} };