[PATCH 09/14] net: use check_net()
From: Christian Brauner <brauner@kernel.org>
Date: 2025-09-18 10:12:37
Also in:
cgroups, linux-fsdevel, lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Don't directly acess the namespace count. There's even a dedicated helper for this. Signed-off-by: Christian Brauner <brauner@kernel.org> --- net/core/net_namespace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index fdbaf5f8ac78..d81a8b291ea8 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c@@ -315,7 +315,7 @@ int peernet2id_alloc(struct net *net, struct net *peer, gfp_t gfp) { int id; - if (refcount_read(&net->ns.count) == 0) + if (!check_net(net)) return NETNSA_NSID_NOT_ASSIGNED; spin_lock(&net->nsid_lock);
--
2.47.3