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(parent: 80d4d0c) | patch
tcp: Fix a data-race around sysctl_tcp_tw_reuse.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:52 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:18 +0000 (17:25 +0200)
commit58d5ea71aaa66767a9d2dbb527c8fdc8ca0c98fe
treeceb8a3c06af64d61834e63f7b0957fdc3171ccd7tree | snapshot
parent80d4d0c461674eea87f0977e12a2ecd334b9b79ccommit | diff
tcp: Fix a data-race around sysctl_tcp_tw_reuse.

[ Upstream commit cbfc6495586a3f09f6f07d9fb3c7cafe807e3c55 ]

While reading sysctl_tcp_tw_reuse, 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_ipv4.c diff | blob | history
Domain: System / Kernel;