Xin Long f8504f4ca0 l2tp: fix a sock refcnt leak in l2tp_tunnel_register ...

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: f6cd651b05 ("l2tp: fix race in duplicate tunnel detection")
Reported-by: Jianlin Shi <[email protected]>
Signed-off-by: Xin Long <[email protected]>
Reviewed-by: Guillaume Nault <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2018-11-14 22:49:31 -08:00

..

Kconfig

l2tp: Call udp_sock_create

2014-07-14 16:12:15 -07:00

l2tp_core.c

l2tp: fix a sock refcnt leak in l2tp_tunnel_register

2018-11-14 22:49:31 -08:00

l2tp_core.h

l2tp: fix unused function warning

2018-08-13 20:45:49 -07:00

l2tp_debugfs.c

l2tp: ignore L2TP_ATTR_MTU

2018-08-03 10:03:57 -07:00

l2tp_eth.c

l2tp: fix unused function warning

2018-08-13 20:45:49 -07:00

l2tp_ip6.c

l2tp: split l2tp_session_get()

2018-08-11 12:13:49 -07:00

l2tp_ip.c

l2tp: split l2tp_session_get()

2018-08-11 12:13:49 -07:00

l2tp_netlink.c

l2tp: split l2tp_session_get()

2018-08-11 12:13:49 -07:00

l2tp_ppp.c

l2tp: fix unused function warning

2018-08-13 20:45:49 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00