diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index d6a49bb07a5f..1945b8096a06 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -61,7 +61,7 @@
 
 #ifdef CONFIG_STACKPROTECTOR
 #include <linux/stackprotector.h>
-unsigned long __stack_chk_guard __read_mostly;
+unsigned long __stack_chk_guard __ro_after_init;
 EXPORT_SYMBOL(__stack_chk_guard);
 #endif