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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-04-20 13:21:30 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-21 15:19:27 -0400 |
| commit | 6f60f438108c66988c944894e5f673ab5d04fbc1 (patch) | |
| tree | d1e7d20c0fb58fd57e45270fa68917091c1e942f | |
| parent | 89087c456fb5cb5e534edf1c30568a8baae4c906 (diff) | |
| download | linux-6f60f438108c66988c944894e5f673ab5d04fbc1.tar.bz2 | |
net: qrtr: potential use after free in qrtr_sendmsg()
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.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/qrtr/qrtr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index ae5ac175b2be..9da7368b0140 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); } |