linux-yocto/net/l2tp
Eric Dumazet d2d08fc357 l2tp: do not use sock_hold() in pppol2tp_session_get_sock()
[ Upstream commit 9b8c88f875c04d4cb9111bd5dd9291c7e9691bf5 ]

pppol2tp_session_get_sock() is using RCU, it must be ready
for sk_refcnt being zero.

Commit ee40fb2e1e ("l2tp: protect sock pointer of
struct pppol2tp_session with RCU") was correct because it
had a call_rcu(..., pppol2tp_put_sk) which was later removed in blamed commit.

pppol2tp_recv() can use pppol2tp_session_get_sock() as well.

Fixes: c5cbaef992 ("l2tp: refactor ppp socket/session relationship")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Link: https://patch.msgid.link/20250826134435.1683435-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-04 15:31:51 +02:00
..
Kconfig
l2tp_core.c
l2tp_core.h
l2tp_debugfs.c
l2tp_eth.c
l2tp_ip.c
l2tp_ip6.c ipv6: replace ipcm6_init calls with ipcm6_init_sk 2025-06-27 11:11:41 +01:00
l2tp_netlink.c
l2tp_ppp.c l2tp: do not use sock_hold() in pppol2tp_session_get_sock() 2025-09-04 15:31:51 +02:00
Makefile
trace.h