Zero out otherwise uninitialized padding in make_unbuffered_packet_out().

Found with valgrind.

diff --git a/lib/vconn.c b/lib/vconn.c
index acb35d44c261e2a52fcf3eac6608c60ca4921090..723146ad3e6602fcde8e7ccddc9af274c7272caa 100644 (file)
--- a/lib/vconn.c
+++ b/lib/vconn.c
@@ -552,7 +552,7 @@ make_unbuffered_packet_out(const struct buffer *packet,
     size_t size = sizeof *opo + sizeof opo->actions[0];
     struct buffer *out = buffer_new(size + packet->size);
     opo = buffer_put_uninit(out, size);
-    memset(opo, 0, sizeof *opo);
+    memset(opo, 0, size);
     opo->header.version = OFP_VERSION;
     opo->header.type = OFPT_PACKET_OUT;
     opo->buffer_id = htonl(UINT32_MAX);