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linux/net/core/secure_seq.c
Kuniyuki Iwashima 329de75b9e tcp: Fix data-races around sysctl knobs related to SYN option. 
[ Upstream commit 3666f666e9 ]

While reading these knobs, they can be changed concurrently.
Thus, we need to add READ_ONCE() to their readers.

  - tcp_sack
  - tcp_window_scaling
  - tcp_timestamps

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29 17:25:22 +02:00

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