diff options
| author | Andrej Ota <andrej@ota.si> | 2010-12-12 15:06:16 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-01-07 13:58:30 -0800 |
| commit | 8ea008ef14dc499b4c60ab2202e4033d8649601e (patch) | |
| tree | c31265ebcc0e9943a8a503996ad68d40ef08cf77 /drivers/net | |
| parent | 030803563383228d71ff3c4f83e3b6e4314fdc1c (diff) | |
pppoe.c: Fix kernel panic caused by __pppoe_xmit
[ Upstream commit 2a27a03d3a891e87ca33d27a858b4db734a4cbab ]
__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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/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 c07de359dc07..6a3eae2407c1 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; } /************************************************************************ |