Eric Dumazet f3d1554d0f tcp: annotate data-race around challenge_timestamp
[ Upstream commit 8c70521238b7863c2af607e20bcba20f974c969b ]

challenge_timestamp can be read an written by concurrent threads.

This was expected, but we need to annotate the race to avoid potential issues.

Following patch moves challenge_timestamp and challenge_count
to per-netns storage to provide better isolation.

Fixes: 354e4aa391ed ("tcp: RFC 5961 5.2 Blind Data Injection Attack Mitigation")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08 11:11:37 +02:00
..
2021-06-03 09:00:50 +02:00
2021-06-18 10:00:06 +02:00