From: Jason Xing Date: Mon, 4 Mar 2024 08:20:41 +0000 (+0800) Subject: netrom: Fix a data-race around sysctl_netrom_transport_busy_delay X-Git-Tag: Ubuntu-6.8.0-17.17~1338^2~2^2~5 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=43547d8699439a67b78d6bb39015113f7aa360fd;p=mirror_ubuntu-kernels.git netrom: Fix a data-race around sysctl_netrom_transport_busy_delay 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 --- diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 8ada0da3c0e0..10eee02ef99e 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -459,7 +459,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol, nr->n2 = msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 = - msecs_to_jiffies(sysctl_netrom_transport_busy_delay); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_busy_delay)); nr->idle = msecs_to_jiffies(sysctl_netrom_transport_no_activity_timeout); nr->window = sysctl_netrom_transport_requested_window_size;