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(parent: 7d8920c) | patch
tcp: Fix a data-race around sysctl_tcp_stdurg.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:50 +0000 (10:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:23 +0000 (17:25 +0200)
commite616bfd9aadfe973d9aec55b15483c8831845140
tree5313165967819e20a09d189f749b5df8141935f4tree | snapshot
parent7d8920c229c34d9e94609d502d8eca03b85f6e74commit | diff
tcp: Fix a data-race around sysctl_tcp_stdurg.

[ Upstream commit 4224f22ece73b04775cadbf685cbbcdb90644d3d ]

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

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
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 | history
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