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(parent: 378dffe) | patch
ipv4: Fix a data-race around sysctl_fib_sync_mem.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 6 Jul 2022 23:40:03 +0000 (16:40 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Jul 2022 18:59:21 +0000 (20:59 +0200)
commitd3dd0221e6664b87cb20ec3542440fb740b62b52
treed87bd684d7441ac8789ba3fdb648eb7d28b67be6tree | snapshot
parent378dffe6e57f2e65b10b419931e488c7f0cec657commit | diff
ipv4: Fix a data-race around sysctl_fib_sync_mem.

[ Upstream commit 7ac6119c80871c86292a690257c87d78c08b270c ]

While reading sysctl_fib_sync_mem, it can be changed concurrently.
So, we need to add READ_ONCE() to avoid a data-race.

Fixes: 57e53c733983 ("ipv4: Allow amount of dirty memory from fib resizing to be controllable")
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/fib_trie.c diff | blob | history
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