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(parent: 558a294) | 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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 09:59:39 +0000 (11:59 +0200)
commite02c7ee5a4308027baf24e3334e69e07ad5bad3d
treea9a12d7d6b7d9325b157d73205efb64607d9347dtree | snapshot
parent558a2949608faf5aaf764e5374ab8bb7ca3ac143commit | diff
tcp: Fix a data-race around sysctl_tcp_min_rtt_wlen.

[ Upstream commit 1330ffacd05fc9ac4159d19286ce119e22450ed2 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/ipv4/tcp_input.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git