From: Jason Xing <kernelxing@xxxxxxxxxxx>
[ Upstream commit e799299aafed417cc1f32adccb2a0e5268b3f6d5 ]
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 <kernelxing@xxxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netrom/af_netrom.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 6857510967448..678a7bbd84bf2 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 =
--
2.43.0
