netdev - [PATCH net 0/2] tcp: fix possible crash in tcp_v4

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Date:   Fri, 15 Feb 2019 13:36:19 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        soukjin bae <soukjin.bae@...sung.com>
Subject: [PATCH net 0/2] tcp: fix possible crash in tcp_v4_err()

soukjin bae reported a crash in tcp_v4_err() that we
root caused to a missing initialization.

Second patch adds a sanity check in tcp_v4_err() to avoid
future potential problems. Ignoring an ICMP message
is probably better than crashing a machine.

Eric Dumazet (2):
  tcp: clear icsk_backoff in tcp_write_queue_purge()
  tcp: tcp_v4_err() should be more careful

 net/ipv4/tcp.c      | 2 +-
 net/ipv4/tcp_ipv4.c | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

-- 
2.21.0.rc0.258.g878e2cd30e-goog