1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libnetlink.c b/src/lib/libnetlink.c
index fddbc209d..07457eefe 100644
--- a/src/lib/libnetlink.c
+++ b/src/lib/libnetlink.c
@@ -626,7 +626,8 @@ printf("\tdata length: %d\n", alen);
         rta = NLMSG_TAIL(n);
         rta->rta_type = type;
         rta->rta_len = len;
-        memcpy(RTA_DATA(rta), data, alen);
+        if (data)
+                memcpy(RTA_DATA(rta), data, alen);
         n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
         return 0;
 }