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authorEric Dumazet <edumazet@google.com>2013-06-24 17:26:00 +0400
committerDavid S. Miller <davem@davemloft.net>2013-06-26 03:07:44 +0400
commitbd8a7036c06cf15779b31a5397d4afcb12be81ea (patch)
treed78794e12fb4ac0005f019e6a51e797230d38970 /net/ipv4
parent2b7a5db060f5e7d7f79bc45f818e08b8f244a3b8 (diff)
downloadlinux-bd8a7036c06cf15779b31a5397d4afcb12be81ea.tar.xz
gre: fix a possible skb leak
commit 68c331631143 ("v4 GRE: Add TCP segmentation offload for GRE") added a possible skb leak, because it frees only the head of segment list, in case a skb_linearize() call fails. This patch adds a kfree_skb_list() helper to fix the bug. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Pravin B Shelar <pshelar@nicira.com> Cc: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/gre.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index b2e805af9b87..7856d1651d05 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -178,7 +178,7 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
err = __skb_linearize(skb);
if (err) {
- kfree_skb(segs);
+ kfree_skb_list(segs);
segs = ERR_PTR(err);
goto out;
}