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(parent: 2a408a4) | patch
igmp: Fix data-races around sysctl_igmp_max_msf.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:43 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:17 +0000 (17:25 +0200)
commit849450279dfcbdfcadfc8b8552e0fe10a8edf33d
tree4cf1f5632d18e3f4665aba78ec1eab6a6f0b1061tree | snapshot
parent2a408a4f423eb531b4aa47fea14ef638d12ba986commit | diff
igmp: Fix data-races around sysctl_igmp_max_msf.

[ Upstream commit 6ae0f2e553737b8cce49a1372573c81130ffa80e ]

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

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
net/ipv4/ip_sockglue.c diff | blob | history
Domain: System / Kernel;