| commit | 51fb60eb162ab84c5edf2ae9c63cf0b878e5547e | [log] [tgz] |
|---|---|---|
| author | Paul Hüber <phueber@kernsp.in> | Sun Feb 26 17:58:19 2017 +0100 |
| committer | David S. Miller <davem@davemloft.net> | Sun Feb 26 22:57:17 2017 -0500 |
| tree | 388f0a7c4f8d7920de303e3cadb4e7526f26c06a | |
| parent | 1ecc9ad02c3d4cf44bc94bffcb3b12e7861b00a7 [diff] |
l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv l2tp_ip_backlog_recv may not return -1 if the packet gets dropped. The return value is passed up to ip_local_deliver_finish, which treats negative values as an IP protocol number for resubmission. Signed-off-by: Paul Hüber <phueber@kernsp.in> Signed-off-by: David S. Miller <davem@davemloft.net>