From e799299aafed417cc1f32adccb2a0e5268b3f6d5 Mon Sep 17 00:00:00 2001 From: Jason Xing Date: Mon, 4 Mar 2024 16:20:39 +0800 Subject: netrom: Fix a data-race around sysctl_netrom_transport_maximum_tries We need to protect the reader reading the sysctl value because the value can be changed concurrently. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jason Xing Signed-off-by: Paolo Abeni --- net/netrom/af_netrom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/netrom/af_netrom.c') diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 4d0e0834d527..312fc745db7f 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -457,7 +457,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol, nr->t2 = msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay); nr->n2 = - msecs_to_jiffies(sysctl_netrom_transport_maximum_tries); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 = msecs_to_jiffies(sysctl_netrom_transport_busy_delay); nr->idle = -- cgit v1.2.3