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(parent: 07b0caf) | patch
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 19:24:21 +0000 (21:24 +0200)
commite2828e8c605853f71267825c9415437c0a93e4f2
tree5027523b5e603c165f57e9ef2499d5459ab2b042tree | snapshot
parent07b0caf8aeb9b82e6ecc6c292a3e47c7fcdb1148commit | diff
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 diff | blob | history
Domain: System / Kernel;