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-rw-r--r--net/ipv4/ip_output.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index afae0cbabbf9..9fe5d7b81580 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
*/