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(parent: 473aad9) | 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 15:19:16 +0000 (17:19 +0200)
commit7d26db0053548f66667da9de680fa45fa6819da5
treea6d292fd700bfa2f72f0f682ef2f6e33a14eb768tree
parent473aad9ad57ff760005377e6f45a2ad4210e08cecommit | 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 | history
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