diff options
| author | Hangbin Liu <liuhangbin@gmail.com> | 2024-05-09 16:18:12 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-11 05:27:46 +0300 |
| commit | 160e9d2752181fcf18c662e74022d77d3164cd45 (patch) | |
| tree | e8c14d0c29644dc1bf0228cb1819be5282343565 /net | |
| parent | 6e370a771d2985107e82d0f6174381c1acb49c20 (diff) | |
| download | linux-160e9d2752181fcf18c662e74022d77d3164cd45.tar.xz | |
ipv6: sr: fix invalid unregister error path
The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL
is not defined. In that case if seg6_hmac_init() fails, the
genl_unregister_family() isn't called.
This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control
lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible
use-after-free and null-ptr-deref") replaced unregister_pernet_subsys()
with genl_unregister_family() in this error path.
Fixes: 46738b1317e1 ("ipv6: sr: add option to control lwtunnel support")
Reported-by: Guillaume Nault <gnault@redhat.com>
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/20240509131812.1662197-4-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/seg6.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c index c4ef96c8fdac..a31521e270f7 100644 --- a/net/ipv6/seg6.c +++ b/net/ipv6/seg6.c @@ -551,6 +551,8 @@ out_unregister_iptun: #endif #ifdef CONFIG_IPV6_SEG6_LWTUNNEL out_unregister_genl: +#endif +#if IS_ENABLED(CONFIG_IPV6_SEG6_LWTUNNEL) || IS_ENABLED(CONFIG_IPV6_SEG6_HMAC) genl_unregister_family(&seg6_genl_family); #endif out_unregister_pernet: |