From 01d4e3afe257768cd2a45f15a0e57bacf932b140 Mon Sep 17 00:00:00 2001 From: Jason Xing Date: Mon, 4 Mar 2024 16:20:43 +0800 Subject: [PATCH] netrom: Fix a data-race around sysctl_netrom_transport_no_activity_timeout [ Upstream commit f99b494b40431f0ca416859f2345746199398e2b ] 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 Signed-off-by: Sasha Levin --- 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 d780adf54e19..376b6af43144 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -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;