1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib/libc/net/rcmd.c b/src/lib/libc/net/rcmd.c
index 214cd2792a..5796364cc6 100644
--- a/src/lib/libc/net/rcmd.c
+++ b/src/lib/libc/net/rcmd.c
@@ -220,6 +220,7 @@ rresvport(alport)
         struct sockaddr_in sin;
         int s;
 
+        bzero(&sin, sizeof sin);
         sin.sin_len = sizeof(struct sockaddr_in);
         sin.sin_family = AF_INET;
         sin.sin_addr.s_addr = INADDR_ANY;