[PATCH 6.1 176/473] ipv6: sr: fix incorrect unregister order

Greg Kroah-Hartman
2024-06-06T14:15:14Z

From: Hangbin Liu <liuhangbin@gmail.com>

[ Upstream commit 6e370a771d2985107e82d0f6174381c1acb49c20 ]

Commit 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and
null-ptr-deref") changed the register order in seg6_init(). But the
unregister order in seg6_exit() is not updated.

Fixes: 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and null-ptr-deref")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240509131812.1662197-3-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv6/seg6.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index 5423f1f2aa626..c4ef96c8fdaca 100644
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -567,6 +567,6 @@ void seg6_exit(void)
seg6_local_exit();
seg6_iptunnel_exit();
#endif
- unregister_pernet_subsys(&ip6_segments_ops);
genl_unregister_family(&seg6_genl_family);
+ unregister_pernet_subsys(&ip6_segments_ops);
}
--
2.43.0