1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 7d0821054729..7ffcd96fe591 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -813,6 +813,8 @@ int ip_append_data(struct sock *sk,
                         inet->cork.addr = ipc->addr;
                 }
                 rt = *rtp;
+                if (unlikely(!rt))
+                        return -EFAULT;
                 /*
                  * We steal reference to this route, caller should not release it
                  */