Eric Dumazet 30c7be26fd udplite: call proper backlog handlers
In commits 93821778def10 ("udp: Fix rcv socket locking") and
f7ad74fef3af ("net/ipv6/udp: UDP encapsulation: break backlog_rcv into
__udpv6_queue_rcv_skb") UDP backlog handlers were renamed, but UDPlite
was forgotten.

This leads to crashes if UDPlite header is pulled twice, which happens
starting from commit e6afc8ace6dd ("udp: remove headers from UDP packets
before queueing")

Bug found by syzkaller team, thanks a lot guys !

Note that backlog use in UDP/UDPlite is scheduled to be removed starting
from linux-4.10, so this patch is only needed up to linux-4.9

Fixes: 93821778def1 ("udp: Fix rcv socket locking")
Fixes: f7ad74fef3af ("net/ipv6/udp: UDP encapsulation: break backlog_rcv into __udpv6_queue_rcv_skb")
Fixes: e6afc8ace6dd ("udp: remove headers from UDP packets before queueing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-24 15:32:14 -05:00
..
2016-04-27 22:48:24 -04:00
2016-10-20 14:32:22 -04:00
2016-10-20 14:32:22 -04:00
2016-04-27 22:48:23 -04:00
2016-10-26 17:33:22 -04:00
2016-09-21 00:23:01 -04:00
2016-09-21 00:23:01 -04:00
2016-09-21 00:23:01 -04:00
2016-09-01 14:09:01 -07:00
2016-06-10 23:07:49 -07:00
2016-09-21 00:23:00 -04:00
2016-11-03 16:12:06 -04:00
2016-10-20 14:32:22 -04:00
2016-11-24 15:32:14 -05:00