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(parent: a84b4af) | patch
igmp: Fix a data-race around sysctl_igmp_max_memberships.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:42 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:05:46 +0000 (17:05 +0200)
commitbe120ad89235376ef533cb4bd4cadcdd4f236cbc
treed54bd23ce3b94fc9903e5f0cb7a667e59c146bb0tree | snapshot
parenta84b4afaca2573ed3aed1f8854aefe3ca5a82e72commit | diff
igmp: Fix a data-race around sysctl_igmp_max_memberships.

[ Upstream commit 6305d821e3b9b5379d348528e5b5faf316383bc2 ]

While reading sysctl_igmp_max_memberships, 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/igmp.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git