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(parent: 7a8aa32) | patch
tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 13 Jul 2022 20:52:03 +0000 (13:52 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 15 Jul 2022 10:49:56 +0000 (11:49 +0100)
commitb70658949c4594187a2d20ed69de6ba172caa7c2
tree231eaa5ebc1706e51ccb190dd86949429c316267tree | snapshot
parent7a8aa32db43de3fa5e77b4bf236ef2ad82705d72commit | diff
tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.

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

Fixes: ed01edd8d50e ("tcp: add new tcp_mtu_probe_floor sysctl")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_timer.c diff | blob | history
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