path: root/net/sctp
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authorYuchung Cheng <ycheng@google.com>2018-12-05 14:38:38 -0800
committerDavid S. Miller <davem@davemloft.net>2018-12-05 16:34:40 -0800
commitb2b7af861122a0c0f6260155c29a1b2e594cd5b5 (patch)
treee50108978bd22380b6d831725c8998bdd2a797d7 /net/sctp
parent41727549de3e7281feb174d568c6e46823db8684 (diff)
tcp: fix NULL ref in tail loss probe
TCP loss probe timer may fire when the retranmission queue is empty but has a non-zero tp->packets_out counter. tcp_send_loss_probe will call tcp_rearm_rto which triggers NULL pointer reference by fetching the retranmission queue head in its sub-routines. Add a more detailed warning to help catch the root cause of the inflight accounting inconsistency. Reported-by: Rafael Tinoco <rafael.tinoco@linaro.org> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
0 files changed, 0 insertions, 0 deletions