[PATCH] net: qrtr: potential use after free in qrtr_sendmsg()

[Dan Carpenter]

If skb_pad() fails then it frees the skb so we should check for errors.

Fixes: bdabad3e363d ("net: Add Qualcomm IPC router")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index c36b0ec364a4..a9a8c7d5a4a9 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -658,7 +658,9 @@ static int qrtr_sendmsg(struct socket *sock, struct msghdr 
*msg, size_t len)
        }
 
        if (plen != len) {
-               skb_pad(skb, plen - len);
+               rc = skb_pad(skb, plen - len);
+               if (rc)
+                       goto out_node;
                skb_put(skb, plen - len);
        }