icmp: Fix a data-race around sysctl_icmp_ratemask.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 12 Jul 2022 00:15:28 +0000 (17:15 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 13 Jul 2022 11:56:49 +0000 (12:56 +0100)
commit1ebcb25ad6fc3d50fca87350acf451b9a66dd31e
treeae0874875b30a43f48360b5ebc29c7a1c679728e
parent2a4eb714841f288cf51c7d942d98af6a8c6e4b01
icmp: Fix a data-race around sysctl_icmp_ratemask.

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

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/icmp.c