Explicitly zero zval since it is stored on the stack

diff --git a/src/t_zset.c b/src/t_zset.c
index 929714ca6afc161abed5712bc90abdcc30177e46..7ce60349fb5567da5343267a4381a808d92ac0e2 100644 (file)
--- a/src/t_zset.c
+++ b/src/t_zset.c
@@ -1515,6 +1515,7 @@ void zunionInterGenericCommand(redisClient *c, robj *dstkey, int op) {
 
     dstobj = createZsetObject();
     dstzset = dstobj->ptr;
+    memset(&zval, 0, sizeof(zval));
 
     if (op == REDIS_OP_INTER) {
         /* Skip everything if the smallest input is empty. */