@@ -, +, @@ 
--
       __warn_memset_zero_len ();
---
 random/random-drbg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/random/random-drbg.c	
+++ a/random/random-drbg.c	
@@ -1021,7 +1021,8 @@ drbg_hmac_update (drbg_state_t drbg, drbg_string_t *seed, int reseed)
     {
       /* 10.1.2.3 step 2 already implicitly covered with
        * the initial memset(0) of drbg->C */
-      memset (drbg->V, 1, drbg_statelen (drbg));
+      if(drbg_statelen (drbg))
+        memset (drbg->V, 1, drbg_statelen (drbg));
       ret = drbg_hmac_setkey (drbg, drbg->C);
       if (ret)
 	return ret;
--