6.6-stable review patch. If anyone has any objections, please let me know.
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From: Rong Zhang i@rong.moe
commit 150b1b97e27513535dcd3795d5ecd28e61b6cb8c upstream.
Zen5 also contains family 1Ah, models 70h-7Fh, which are mistakenly missing from cpu_has_entrysign(). Add the missing range.
Fixes: 8a9fb5129e8e ("x86/microcode/AMD: Limit Entrysign signature checking to known generations") Signed-off-by: Rong Zhang i@rong.moe Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Cc: stable@kernel.org Link: https://patch.msgid.link/20251229182245.152747-1-i@rong.moe Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/cpu/microcode/amd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -237,7 +237,7 @@ static bool cpu_has_entrysign(void) if (fam == 0x1a) { if (model <= 0x2f || (0x40 <= model && model <= 0x4f) || - (0x60 <= model && model <= 0x6f)) + (0x60 <= model && model <= 0x7f)) return true; }