| commit | e2e210c0238eb7073e07af503ae743fa53977120 | |
| author | Eric Dumazet <eric.dumazet@gmail.com> | |
| Wed, 2 Nov 2011 22:47:44 +0000 (2 22:47 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Thu, 3 Nov 2011 22:02:13 +0000 (3 18:02 -0400) | ||
| tree | a4940a436eb0292f09a9e9c09d7bfccfc5a0d76f | treesnapshot (tar.gz zip) |
| parent | 2edcd4ca43df3c1d1d392753531cc73a53e709ba | commitdiff |
l2tp: fix race in l2tp_recv_dequeue()
Misha Labjuk reported panics occurring in l2tp_recv_dequeue()
If we release reorder_q.lock, we must not keep a dangling pointer (tmp),
since another thread could manipulate reorder_q.
Instead we must restart the scan at beginning of list.
Reported-by: Misha Labjuk <spiked.yar@gmail.com>
Tested-by: Misha Labjuk <spiked.yar@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Misha Labjuk reported panics occurring in l2tp_recv_dequeue()
If we release reorder_q.lock, we must not keep a dangling pointer (tmp),
since another thread could manipulate reorder_q.
Instead we must restart the scan at beginning of list.
Reported-by: Misha Labjuk <spiked.yar@gmail.com>
Tested-by: Misha Labjuk <spiked.yar@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/l2tp/l2tp_core.c | diffblobblamehistory |