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(parent: 2455e61) | patch
tcp: Fix a data-race around sysctl_tcp_min_rtt_wlen.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:24 +0000 (09:50 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jul 2022 11:06:18 +0000 (12:06 +0100)
commit1330ffacd05fc9ac4159d19286ce119e22450ed2
tree71218211e3caa701d1232cbd2c30248d338802ebtree
parent2455e61b85e9c99af38cd889a7101f1d48b33cb4commit | diff
tcp: Fix a data-race around sysctl_tcp_min_rtt_wlen.

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

Fixes: f672258391b4 ("tcp: track min RTT using windowed min-filter")
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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