diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-09-15 08:12:33 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:58:37 +0200 |
| commit | 6f547cc2652bdef0ac054046f877316805a21574 (patch) | |
| tree | 0179fe3c99ff948bcea02b949f8267ec00ddbd3d /kernel/debug | |
| parent | b8cbd0dd3f5ea38b94b153cfbd4aba0bee0a750f (diff) | |
tcp: fix overflow in __tcp_retransmit_skb()
commit ffb4d6c8508657824bcef68a36b2a0f9d8c09d10 upstream.
If a TCP socket gets a large write queue, an overflow can happen
in a test in __tcp_retransmit_skb() preventing all retransmits.
The flow then stalls and resets after timeouts.
Tested:
sysctl -w net.core.wmem_max=1000000000
netperf -H dest -- -s 1000000000
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'kernel/debug')
0 files changed, 0 insertions, 0 deletions