Files
linux/include/net
Eric Dumazet 1f52cfe301 tcp: clear icsk_backoff in tcp_write_queue_purge()
[ Upstream commit 04c03114be ]

soukjin bae reported a crash in tcp_v4_err() handling
ICMP_DEST_UNREACH after tcp_write_queue_head(sk)
returned a NULL pointer.

Current logic should have prevented this :

  if (seq != tp->snd_una  || !icsk->icsk_retransmits ||
      !icsk->icsk_backoff || fastopen)
      break;

Problem is the write queue might have been purged
and icsk_backoff has not been cleared.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: soukjin bae <soukjin.bae@samsung.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-23 09:05:59 +01:00
..
2018-09-29 03:07:30 -07:00
2015-06-28 16:55:44 -07:00
2018-10-18 09:13:21 +02:00
2015-11-18 16:17:38 -05:00
2016-06-27 15:06:17 -04:00
2016-07-08 12:20:57 +02:00
2016-04-25 16:44:27 -04:00
2016-04-25 16:44:27 -04:00
2016-06-09 23:41:03 -07:00
2015-03-06 21:50:02 -05:00
2016-08-26 11:55:18 -07:00
2015-09-17 17:18:37 -07:00
2016-09-23 08:38:50 -04:00
2016-02-16 20:21:48 -05:00
2017-06-07 12:07:46 +02:00
2016-06-08 11:36:02 -07:00
2016-05-20 18:03:16 -04:00
2016-04-27 22:48:25 -04:00
2016-10-14 10:59:15 -04:00
2016-05-20 18:03:17 -04:00
2018-10-18 09:13:24 +02:00
2018-10-18 09:13:24 +02:00
2016-08-17 19:36:23 -04:00
2015-10-23 06:26:42 -07:00
2016-10-03 02:00:22 -04:00
2016-10-04 02:11:51 -04:00
2016-06-15 20:41:23 -07:00
2018-05-16 10:08:41 +02:00
2016-07-08 12:20:57 +02:00
2016-03-23 22:09:58 -04:00
2016-04-07 16:53:30 -04:00
2018-02-25 11:05:48 +01:00
2019-01-09 16:16:41 +01:00
2015-03-12 22:58:12 -04:00
2016-05-03 16:08:14 -04:00
2015-10-26 22:24:22 -07:00
2017-07-21 07:42:18 +02:00