Commit 835acf5d authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

l2tp: fix a potential skb leak in l2tp_xmit_skb()



l2tp_xmit_skb() can leak one skb if skb_cow_head() returns an error.
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1ce5cce8
......@@ -1045,8 +1045,10 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len
headroom = NET_SKB_PAD + sizeof(struct iphdr) +
uhlen + hdr_len;
old_headroom = skb_headroom(skb);
if (skb_cow_head(skb, headroom))
if (skb_cow_head(skb, headroom)) {
dev_kfree_skb(skb);
goto abort;
}
new_headroom = skb_headroom(skb);
skb_orphan(skb);
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment