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| author | Andrej Ota <andrej@ota.si> | 2010-12-12 15:06:16 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-12 15:06:16 -0800 |
| commit | 2a27a03d3a891e87ca33d27a858b4db734a4cbab (patch) | |
| tree | 6c5be5e7a4d4302dd993c6a35343fe4ea4e4efe8 | |
| parent | eaff9453d3e2b63969af93e9d42a85e803060121 (diff) | |
| download | linux-stable-2a27a03d3a891e87ca33d27a858b4db734a4cbab.tar.gz linux-stable-2a27a03d3a891e87ca33d27a858b4db734a4cbab.tar.bz2 linux-stable-2a27a03d3a891e87ca33d27a858b4db734a4cbab.zip | |
pppoe.c: Fix kernel panic caused by __pppoe_xmit
__pppoe_xmit function return value was invalid resulting in
additional call to kfree_skb on already freed skb. This resulted in
memory corruption and consequent kernel panic after PPPoE peer
terminated the link.
This fixes commit 55c95e738da85373965cb03b4f975d0fd559865b.
Reported-by: Gorik Van Steenberge <gvs@zemos.net>
Reported-by: Daniel Kenzelmann <kernel.bugzilla@kenzelmann.dyndns.info>
Reported-by: Denys Fedoryshchenko <nuclearcat@nuclearcat.com>
Reported-by: Pawel Staszewski <pstaszewski@artcom.pl>
Diagnosed-by: Andrej Ota <andrej@ota.si>
Diagnosed-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Denys Fedoryshchenko <nuclearcat@nuclearcat.com>
Tested-by: Pawel Staszewski <pstaszewski@artcom.pl>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: Andrej Ota <andrej@ota.si>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/pppoe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index d72fb0519a2a..78c0e3c9b2b5 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -948,7 +948,7 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb) abort: kfree_skb(skb); - return 0; + return 1; } /************************************************************************ |