diff options
| author | Xin Long <lucien.xin@gmail.com> | 2018-11-13 01:08:25 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-23 08:17:05 +0100 |
| commit | 79272fc2c124166ea9c0960241fc60cd47712ef3 (patch) | |
| tree | 7831ab45015c9de8735e57c27bfbecc2968ef244 /include/uapi | |
| parent | 115973a608a1d99f8569496cb6f0f165be325f19 (diff) | |
l2tp: fix a sock refcnt leak in l2tp_tunnel_register
[ Upstream commit f8504f4ca0a0e9f84546ef86e00b24d2ea9a0bd2 ]
This issue happens when trying to add an existent tunnel. It
doesn't call sock_put() before returning -EEXIST to release
the sock refcnt that was held by calling sock_hold() before
the existence check.
This patch is to fix it by holding the sock after doing the
existence check.
Fixes: f6cd651b056f ("l2tp: fix race in duplicate tunnel detection")
Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions