Eric Dumazet 0cafd77dcd net: add a refcount tracker for kernel sockets ... Commit ffa84b5ffb ("net: add netns refcount tracker to struct sock") added a tracker to sockets, but did not track kernel sockets. We still have syzbot reports hinting about netns being destroyed while some kernel TCP sockets had not been dismantled. This patch tracks kernel sockets, and adds a ref_tracker_dir_print() call to net_free() right before the netns is freed. Normally, each layer is responsible for properly releasing its kernel sockets before last call to net_free(). This debugging facility is enabled with CONFIG_NET_NS_REFCNT_TRACKER=y Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Tested-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2022-10-24 11:04:43 +01:00
..
bpf_sk_storage.c	net: Fix data-races around sysctl_optmem_max.	2022-08-24 13:46:57 +01:00
datagram.c	tcp: TX zerocopy should not sense pfmemalloc status	2022-09-02 12:29:02 +01:00
dev.c	net: Fix return value of qdisc ingress handling on success	2022-10-19 14:04:36 +01:00
dev.h	net: add skb_defer_max sysctl	2022-05-16 11:33:59 +01:00
dev_addr_lists.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c	net: kunit: add a test for dev_addr_lists	2021-11-20 12:25:57 +00:00
dev_ioctl.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
devlink.c	net: devlink: add port_init/fini() helpers to allow pre-register/post-unregister functions	2022-09-30 18:17:16 -07:00
drop_monitor.c	genetlink: start to validate reserved header bytes	2022-08-29 12:47:15 +01:00
dst.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
dst_cache.c	wireguard: device: reset peer src endpoint when netns exits	2021-11-29 19:50:45 -08:00
failover.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
fib_notifier.c
fib_rules.c	fib: expand fib_rule_policy	2021-12-16 07:18:35 -08:00
filter.c	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2022-10-03 13:02:49 -07:00
flow_dissector.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-09-22 13:02:10 -07:00
flow_offload.c	flow_offload: Introduce flow_match_l2tpv3	2022-09-20 09:13:38 +02:00
gen_estimator.c	net: sched: Remove Qdisc::running sequence counter	2021-10-18 12:54:41 +01:00
gen_stats.c	net: sched: fix misuse of qcpu->backlog in gnet_stats_add_queue_cpu	2022-08-16 19:38:20 -07:00
gro.c	gro: add support of (hw)gro packets to gro stack	2022-10-03 12:38:34 +01:00
gro_cells.c	net: drop the weight argument from netif_napi_add	2022-09-28 18:57:14 -07:00
hwbm.c
link_watch.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
lwt_bpf.c	bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook	2022-04-22 17:45:25 +02:00
lwtunnel.c	xfrm: lwtunnel: add lwtunnel support for xfrm interfaces in collect_md mode	2022-08-29 10:44:08 +02:00
Makefile	net: skb: export skb drop reaons to user by TRACE_DEFINE_ENUM	2022-09-07 15:28:08 +01:00
neighbour.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
net-procfs.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
net-sysfs.c	net-sysfs: Convert to use sysfs_emit() APIs	2022-09-30 12:27:44 +01:00
net-sysfs.h
net-traces.c	tcp: add tracepoint for checksum errors	2021-05-14 15:26:03 -07:00
net_namespace.c	net: add a refcount tracker for kernel sockets	2022-10-24 11:04:43 +01:00
netclassid_cgroup.c	core: Variable type completion	2022-08-31 09:40:34 +01:00
netevent.c	net: core: Correct function name netevent_unregister_notifier() in the kerneldoc	2021-03-28 17:56:56 -07:00
netpoll.c	net: move from strlcpy with unused retval to strscpy	2022-08-22 18:06:18 -07:00
netprio_cgroup.c	bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode	2021-09-13 16:35:58 -07:00
of_net.c	Revert "of: net: support NVMEM cells with MAC in text format"	2022-01-12 14:14:36 +00:00
page_pool.c	- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe	2022-08-05 16:32:45 -07:00
pktgen.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
ptp_classifier.c	ptp: Add generic PTP is_sync() function	2022-03-07 11:31:34 +00:00
request_sock.c
rtnetlink.c	net: rtnetlink: Enslave device before bringing it up	2022-09-20 08:37:44 -07:00
scm.c	memcg: enable accounting for scm_fp_list objects	2021-07-20 06:00:38 -07:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-20 10:14:49 +01:00
selftests.c	net: core: constify mac addrs in selftests	2021-10-24 13:59:44 +01:00
skbuff.c	net: skb: introduce and use a single page frag cache	2022-09-29 18:48:15 -07:00
skmsg.c	skmsg: pass gfp argument to alloc_sk_msg()	2022-10-16 20:57:17 +01:00
sock.c	net: add a refcount tracker for kernel sockets	2022-10-24 11:04:43 +01:00
sock_destructor.h	skb_expand_head() adjust skb->truesize incorrectly	2021-10-22 12:35:51 -07:00
sock_diag.c	net: Don't include filter.h from net/sock.h	2021-12-29 08:48:14 -08:00
sock_map.c	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2022-08-17 20:29:36 -07:00
sock_reuseport.c	udp: Update reuse->has_conns under reuseport_lock.	2022-10-18 10:17:18 +02:00
stream.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
sysctl_net_core.c	net: sysctl: remove unused variable long_max	2022-09-07 15:31:19 +01:00
timestamping.c
tso.c
utils.c	net: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding	2022-02-21 11:40:44 +00:00
xdp.c	xdp: improve page_pool xdp_return performance	2022-09-26 11:28:19 -07:00