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netrom: Fix a data-race around sysctl_netrom_transport_no_activity_timeout

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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 16:20:43 +08:00 committed by Paolo Abeni
parent a2e7068414
commit f99b494b40
1 changed files with 1 additions and 1 deletions
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2
net/netrom/af_netrom.c
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@ -461,7 +461,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol,
nr->t4 =
msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_busy_delay));
nr->idle =
msecs_to_jiffies(sysctl_netrom_transport_no_activity_timeout);
msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_no_activity_timeout));
nr->window = READ_ONCE(sysctl_netrom_transport_requested_window_size);
nr->bpqext = 1;