Xiyu Yang 9b6ff7eb66 net/l2tp: Fix reference count leak in l2tp_udp_recv_core ... The reference count leak issue may take place in an error handling path. If both conditions of tunnel->version == L2TP_HDR_VER_3 and the return value of l2tp_v3_ensure_opt_in_linear is nonzero, the function would directly jump to label invalid, without decrementing the reference count of the l2tp_session object session increased earlier by l2tp_tunnel_get_session(). This may result in refcount leaks. Fix this issue by decrease the reference count before jumping to the label invalid. Fixes: 4522a70db7 ("l2tp: fix reading optional fields of L2TPv3") Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-09-09 11:00:20 +01:00
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Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
l2tp_core.c	net/l2tp: Fix reference count leak in l2tp_udp_recv_core	2021-09-09 11:00:20 +01:00
l2tp_core.h	net: l2tp: reduce log level of messages in receive path, add counter instead	2021-03-03 16:55:02 -08:00
l2tp_debugfs.c	l2tp: remove tunnel and session debug flags field	2020-08-22 12:44:37 -07:00
l2tp_eth.c	l2tp: remove header length param from l2tp_xmit_skb	2020-09-03 12:19:03 -07:00
l2tp_ip.c	l2tp: Fix spelling mistakes	2021-06-07 14:08:30 -07:00
l2tp_ip6.c	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
l2tp_netlink.c	net: l2tp: reduce log level of messages in receive path, add counter instead	2021-03-03 16:55:02 -08:00
l2tp_ppp.c	l2tp: Fix spelling mistakes	2021-06-07 14:08:30 -07:00
Makefile	l2tp: add tracepoint infrastructure to core	2020-08-22 12:44:37 -07:00
trace.h	l2tp: add tracepoint definitions in trace.h	2020-08-22 12:44:37 -07:00