]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
icmp: Fix data-races around sysctl.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 6 Jul 2022 23:40:02 +0000 (16:40 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Jul 2022 18:40:31 +0000 (20:40 +0200)
commit1740e5922fbb705637ae9fa5203db132fc45f9f6
tree72b3f6231d259b8c76130d5d6090d3bcb6c8012c
parent2764f82bbc158d106693ae3ced3675cf4b963b35
icmp: Fix data-races around sysctl.

[ Upstream commit 48d7ee321ea5182c6a70782aa186422a70e67e22 ]

While reading icmp sysctl variables, they can be changed concurrently.
So, we need to add READ_ONCE() to avoid data-races.

Fixes: 4cdf507d5452 ("icmp: add a global rate limitation")
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/icmp.c