tcp: Fix data-races around sysctl_tcp_migrate_req.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:48 +0000 (10:17 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 18 Jul 2022 11:21:54 +0000 (12:21 +0100)
commit4177f545895b1da08447a80692f30617154efa6e
treebe94ec28ffb746a5f9c96582d89a85a751fbb642
parentf2e383b5bb6bbc60a0b94b87b3e49a2b1aefd11e
tcp: Fix data-races around sysctl_tcp_migrate_req.

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

Fixes: f9ac779f881c ("net: Introduce net.ipv4.tcp_migrate_req.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/sock_reuseport.c