| commit | 837786cbbb60f00770b02efd15546b36008b536e | [log] [tgz] |
|---|---|---|
| author | Paul Hüber <phueber@kernsp.in> | Sun Feb 26 17:58:19 2017 +0100 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Wed Mar 22 12:43:32 2017 +0100 |
| tree | 96ed249883c2449aa5999ad1a9be8d80deed3dc5 | |
| parent | 063893e4ec88c253ff52a8e8486169fcf5e2d840 [diff] |
l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv [ Upstream commit 51fb60eb162ab84c5edf2ae9c63cf0b878e5547e ] 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>