Files
linux/net
Paul Hüber 837786cbbb l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
[ Upstream commit 51fb60eb16 ]

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>
2017-03-22 12:43:32 +01:00
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