From 958d6145a6d9ba9e075c921aead8753fb91c9101 Mon Sep 17 00:00:00 2001 From: Jason Xing Date: Mon, 4 Mar 2024 16:20:35 +0800 Subject: netrom: Fix a data-race around sysctl_netrom_default_path_quality We need to protect the reader reading sysctl_netrom_default_path_quality 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/nr_route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index baea3cbd76ca..6f709fdffc11 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -153,7 +153,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic, nr_neigh->digipeat = NULL; nr_neigh->ax25 = NULL; nr_neigh->dev = dev; - nr_neigh->quality = sysctl_netrom_default_path_quality; + nr_neigh->quality = READ_ONCE(sysctl_netrom_default_path_quality); nr_neigh->locked = 0; nr_neigh->count = 0; nr_neigh->number = nr_neigh_no++; -- cgit