netrom: Fix a data-race around sysctl_netrom_transport_timeout

We need to protect the reader reading the sysctl value because the
value can be changed concurrently.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Jason Xing 2024-03-04 16:20:38 +08:00 committed by Paolo Abeni
parent 119cae5ea3
commit 60a7a152ab

View File

@ -453,7 +453,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol,
nr_init_timers(sk);
nr->t1 =
msecs_to_jiffies(sysctl_netrom_transport_timeout);
msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_timeout));
nr->t2 =
msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay);
nr->n2 =