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(parent: e816f80) | patch
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:51 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:18 +0000 (17:25 +0200)
commit80d4d0c461674eea87f0977e12a2ecd334b9b79c
treee8c205f10c847ba15de25d5bc01f7331ad8ad54ctree | snapshot
parente816f8024617afd73cc755e79e4e15b3ceabc4f8commit | diff
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.

[ Upstream commit 55be873695ed8912eb77ff46d1d1cadf028bd0f3 ]

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

Fixes: c9bee3b7fdec ("tcp: TCP_NOTSENT_LOWAT socket option")
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>
include/net/tcp.h diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git