netrom: Fix a data-race around sysctl_netrom_routing_control
authorJason Xing <kernelxing@tencent.com>
Mon, 4 Mar 2024 08:20:44 +0000 (16:20 +0800)
committerPaolo Abeni <pabeni@redhat.com>
Thu, 7 Mar 2024 09:36:58 +0000 (10:36 +0100)
commitb5dffcb8f71bdd02a4e5799985b51b12f4eeaf76
treeadbaa7a5dfbeb087cd1b24513de9fe2e12146284
parentf99b494b40431f0ca416859f2345746199398e2b
netrom: Fix a data-race around sysctl_netrom_routing_control

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@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
net/netrom/nr_route.c