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(parent: e43d7d1) | patch
tcp: Fix a data-race around sysctl_tcp_challenge_ack_limit.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:21 +0000 (09:50 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jul 2022 11:06:17 +0000 (12:06 +0100)
commit0bcb9460e513955ebc7a7b4f4a91b73a5b9ab61c
treea45bbe61604449df4e6acaa3cb15c42a9d95b437tree | snapshot
parente43d7d13237a0dda329a6ad5572d3de1d90f5818commit | diff
tcp: Fix a data-race around sysctl_tcp_challenge_ack_limit.

While reading sysctl_tcp_challenge_ack_limit, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 79fe972a0c2e ("tcp: implement RFC 5961 3.2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_input.c diff | blob | history
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