diff --git a/linuxkm/module_hooks.c b/linuxkm/module_hooks.c
index 3a1dadcc7..4f082cb8f 100644
--- a/linuxkm/module_hooks.c
+++ b/linuxkm/module_hooks.c
@@ -323,6 +323,7 @@ static WC_INLINE int IntelRDseed64_r(word64* rnd)
         WC_SANITIZE_DISABLE();
         *rnd ^= buf; /* deliberately retain any garbage passed in the dest buffer. */
         WC_SANITIZE_ENABLE();
+        buf = 0;
     }
     return 0;
 }