From e8a3c7d7f5310151279249213fa34cf5a662c633 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Mon, 6 Apr 2026 15:02:33 +0000
Subject: [PATCH] fix: wrmsr: specify core number (closes #294)
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 built from commit fe5bf7c003b40ddd127e49b88a00346a613a9513
 dated 2026-04-06 17:01:17 +0200
 by Stéphane Lesimple (speed47_github@speed47.net)
---
 spectre-meltdown-checker.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh
index c78cf56..11e7182 100755
--- a/spectre-meltdown-checker.sh
+++ b/spectre-meltdown-checker.sh
@@ -13,7 +13,7 @@
 #
 # Stephane Lesimple
 #
-VERSION='26.32.0406542'
+VERSION='26.32.0406626'
 
 # --- Common paths and basedirs ---
 readonly VULN_SYSFS_BASE="/sys/devices/system/cpu/vulnerabilities"
@@ -2957,14 +2957,13 @@ write_msr_one_core() {
         ret=$?
     else
         # for Linux
-        # convert to decimal
         if [ ! -w $CPU_DEV_BASE/"$core"/msr ]; then
             ret_write_msr_msg="No write permission on $CPU_DEV_BASE/$core/msr"
             return $WRITE_MSR_RET_ERR
         # if wrmsr is available, use it
         elif command -v wrmsr >/dev/null 2>&1 && [ "${SMC_NO_WRMSR:-}" != 1 ]; then
             pr_debug "write_msr: using wrmsr"
-            wrmsr $msr_dec $value_dec 2>/dev/null
+            wrmsr -p "$core" $msr_dec $value_dec 2>/dev/null
             ret=$?
             # ret=4: msr doesn't exist, ret=127: msr.allow_writes=off
             [ "$ret" = 127 ] && write_denied=1