[PATCH] x86/microcode/AMD: Fix Entrysign revision check for Zen5/Strix Halo
From: Rong Zhang
Date: Mon Dec 29 2025 - 13:23:37 EST
Zen5 also contains Family 1Ah Models 70h-7Fh, which are mistakenly
missing from cpu_has_entrysign().
Fix it by merging the missing range into the current one.
Fixes: 8a9fb5129e8e ("x86/microcode/AMD: Limit Entrysign signature checking to known generations")
Cc: stable@xxxxxxxxxx
Signed-off-by: Rong Zhang <i@xxxxxxxx>
---
arch/x86/kernel/cpu/microcode/amd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 3821a985f4ff..46673530bc6f 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -258,7 +258,7 @@ 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;
}
base-commit: 538254cd98afb31b09c4cc58219217d8127c79be
--
2.51.0