linux-kernel - [PATCH 5.4 186/355] net: net_namespace: Fix undefined member in key_remove

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Message-Id: <20211115165319.791384048@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:01:50 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yajun Deng <yajun.deng@...ux.dev>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 186/355] net: net_namespace: Fix undefined member in key_remove_domain()

From: Yajun Deng <yajun.deng@...ux.dev>

[ Upstream commit aed0826b0cf2e488900ab92193893e803d65c070 ]

The key_domain member in struct net only exists if we define CONFIG_KEYS.
So we should add the define when we used key_domain.

Fixes: 9b242610514f ("keys: Network namespace domain tag")
Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/core/net_namespace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 9bf15512601bf..cd1d40195e461 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -480,7 +480,9 @@ struct net *copy_net_ns(unsigned long flags,
 
 	if (rv < 0) {
 put_userns:
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(user_ns);
 		net_drop_ns(net);
 dec_ucounts:
@@ -612,7 +614,9 @@ static void cleanup_net(struct work_struct *work)
 	list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) {
 		list_del_init(&net->exit_list);
 		dec_net_namespaces(net->ucounts);
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(net->user_ns);
 		net_drop_ns(net);
 	}
-- 
2.33.0