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(parent: 48d7ee3) | 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)
committerDavid S. Miller <davem@davemloft.net>
Fri, 8 Jul 2022 11:10:34 +0000 (12:10 +0100)
commit73318c4b7dbd0e781aaababff17376b2894745c0
treeab1e05b75bb9090148ce3c2473b9c3c1ccfd1f36tree
parent48d7ee321ea5182c6a70782aa186422a70e67e22commit | diff
ipv4: Fix a data-race around sysctl_fib_sync_mem.

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

Fixes: 9ab948a91b2c ("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>
net/ipv4/fib_trie.c diff | blob | history
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