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(parent: be120ad) | 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 15:05:46 +0000 (17:05 +0200)
commit91e21df688f8a75255ca9c459da39ac96300113a
treee15e2ccd8bcdf30e64cfba88b5c91d5571eeb381tree | snapshot
parentbe120ad89235376ef533cb4bd4cadcdd4f236cbccommit | 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 | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git