INFO: task hung in tls_sk_proto

INFO: task hung in tls_sk_proto_close
Status: upstream: reported C repro on 2020/03/30 07:09
Reported-by: syzbot+ca1345cca66556f3d79b@syzkaller.appspotmail.com
First crash: 410d, last: 2d05h

Cause bisection: introduced by (bisect log) :
commit 02d21b59d5cc4b4b395bbc2a29319b8a529ebeff
Author: Ido Schimmel <idosch@mellanox.com>
Date: Wed Jan 23 14:32:59 2019 +0000

mlxsw: spectrum_nve: Enable VXLAN on Spectrum-2

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

duplicates (1):
Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
INFO: task hung in tls_sw_cancel_work_tx	C	done	error	58	351d	438d	0/22	closed as dup on 2020/12/29 19:08

Sample crash report:

INFO: task syz-executor216:8640 blocked for more than 143 seconds.
      Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor216 state:D stack:26152 pid: 8640 ppid:  8428 flags:0x00000004
Call Trace:
 context_switch kernel/sched/core.c:4327 [inline]
 __schedule+0x90c/0x21a0 kernel/sched/core.c:5078
 schedule+0xcf/0x270 kernel/sched/core.c:5157
 schedule_timeout+0x1d8/0x250 kernel/time/timer.c:1854
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x163/0x260 kernel/sched/completion.c:138
 __flush_work+0x51f/0xac0 kernel/workqueue.c:3052
 __cancel_work_timer+0x3b3/0x520 kernel/workqueue.c:3139
 tls_sk_proto_close+0x4a7/0xaf0 net/tls/tls_main.c:305
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475
 __sock_release+0xcd/0x280 net/socket.c:597
 sock_close+0x18/0x20 net/socket.c:1256
 __fput+0x283/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x190 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x405493
RSP: 002b:00007ffdd4021878 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000405493
RDX: 00000000000000d8 RSI: 00000000200005c0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000000d8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdd4021890
R13: 00000000000f4240 R14: 00000000004b8018 R15: 00000000004004b8

Showing all locks held in the system:
3 locks held by kworker/0:0/5:
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 #0: ffff888010c63d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 kernel/workqueue.c:2246
 #1: ffffc90000cbfda8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 kernel/workqueue.c:2250
 #2: ffff8880364df0d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x127/0x190 net/tls/tls_sw.c:2262
1 lock held by khungtaskd/1647:
 #0: ffffffff8bd73da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6259
1 lock held by in:imklog/8332:
 #0: ffff8880243e0b30 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:947
1 lock held by syz-executor216/8640:
 #0: ffff88803947f210 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:773 [inline]
 #0: ffff88803947f210 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:596

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1647 Comm: khungtaskd Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xd43/0xfa0 kernel/hung_task.c:294
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4869 Comm: systemd-journal Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:creds_are_invalid+0x0/0x50 kernel/cred.c:792
Code: e8 75 c5 26 00 4c 89 e0 5b 5d 41 5c c3 48 c7 c7 e0 b5 a3 8d e8 31 5d 69 00 e9 75 ff ff ff 49 c7 c4 ef ff ff ff eb a8 cc cc cc <53> 48 89 fb e8 47 c5 26 00 48 8d 7b 10 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90001337e88 EFLAGS: 00000213
RAX: ffff888015549d00 RBX: 0000000000000000 RCX: ffffffff814c283c
RDX: ffffed1002aa93a1 RSI: 0000000000000004 RDI: ffff888015423600
RBP: ffff888015423600 R08: 0000000000000001 R09: ffff888015549d07
R10: ffffed1002aa93a0 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fd4f29068c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4efcf2000 CR3: 0000000014301000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __validate_creds include/linux/cred.h:187 [inline]
 put_cred include/linux/cred.h:285 [inline]
 access_override_creds fs/open.c:392 [inline]
 do_faccessat+0x566/0x820 fs/open.c:417
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd4f1bc19c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffce21e98f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007ffce21ec810 RCX: 00007fd4f1bc19c7
RDX: 00007fd4f2632a00 RSI: 0000000000000000 RDI: 000055fdcce029a3
RBP: 00007ffce21e9930 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffce21ec810 R15: 00007ffce21e9e20

Crashes (216):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/02/18 12:03	upstream	f40ddce8	14052202	.config	log	report	syz	C		INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce-selinux-root	2020/09/10 14:25	upstream	34d4ddd3	409809d8	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/09/09 15:22	upstream	34d4ddd3	0ea7a887	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/09/05 16:13	upstream	c70672d8	abf9ba4f	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/08/30 16:20	upstream	1127b219	d5a3ae1f	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/08/30 10:22	upstream	1127b219	d5a3ae1f	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/08/30 10:15	upstream	1127b219	d5a3ae1f	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/09/05 16:14	upstream	c70672d8	abf9ba4f	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/08/29 23:33	upstream	4d41ead6	d5a3ae1f	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/09/05 04:15	net	b61ac5bb	abf9ba4f	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/08/29 09:33	net	5438dd45	d5a3ae1f	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/15 15:34	net-next	d25e2e93	63869021	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/09/05 05:15	net-next	3ab1270b	abf9ba4f	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/09/05 00:58	net-next	3ab1270b	abf9ba4f	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/08/29 10:13	net-next	0baf0194	d5a3ae1f	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/09/23 10:44	linux-next	e6499702	3e8f6c27	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/08/31 03:55	linux-next	b36c9697	d5a3ae1f	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/08/29 06:08	linux-next	b36c9697	d5a3ae1f	.config	log	report	syz	C
ci-upstream-kasan-gce	2021/04/19 17:05	upstream	bf05bf16	50f523d7	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce	2021/04/07 14:32	upstream	2d743660	6a81331a	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce	2021/02/07 16:56	upstream	825b5991	2ce644fc	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce-selinux-root	2021/02/06 23:05	upstream	1e0d27fc	0655e081	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce	2021/02/02 02:01	upstream	1048ba83	e6b95f32	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce-386	2021/01/30 13:58	upstream	0e9bcda5	fc9fd31e	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce-386	2021/01/23 05:00	upstream	83d09ad4	4080af96	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/04/19 07:33	net	88a5af94	7e2b734b	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/02/21 16:10	net	3af409ca	3e5ed8b4	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/02/01 09:40	net	eb4e8fac	fc9fd31e	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/01/31 04:07	net	eb4e8fac	fc9fd31e	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/01/30 17:31	net	5399d522	fc9fd31e	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/01/26 12:03	net	62d9f1a6	52e37319	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/01/19 13:24	net	9d9b1ee0	63631df1	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-this-kasan-gce	2021/01/19 06:10	net	79267ae2	63631df1	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/04/15 07:26	net-next	652d3be2	fcdb12ba	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/04/11 18:50	net-next	cbd31253	bfeda1b1	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/04/06 04:16	net-next	514e1150	6a81331a	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/04/05 14:05	net-next	7d42e84e	6a81331a	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/04/05 10:09	net-next	7d42e84e	6a81331a	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/03/31 07:22	net-next	37f368d8	6a81331a	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/03/09 15:54	net-next	d310ec03	09fbf400	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/02/26 00:15	net-next	d310ec03	76f7fc95	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/02/21 16:09	net-next	38b5133a	3e5ed8b4	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/02/04 20:28	net-next	32d1bbb1	42b90a7c	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/02/03 10:10	net-next	9ae4bdc6	624dad51	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/01/28 02:56	net-next	6b2e04bc	eefc07f2	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/01/28 02:37	net-next	6b2e04bc	eefc07f2	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/01/26 23:03	net-next	02c26940	55a7d4df	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/01/26 07:59	net-next	24f97b6a	52e37319	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-net-kasan-gce	2021/01/22 17:46	net-next	fdb6b338	d4f4eca5	.config	log	report			info	INFO: task hung in tls_sk_proto_close
ci-upstream-kasan-gce	2021/01/10 12:38	upstream	2ff90100	2c1f2513	.config	log	report			info
ci-upstream-kasan-gce	2021/01/06 05:37	upstream	6207214a	b1c228e1	.config	log	report			info
ci-upstream-kasan-gce	2020/12/24 02:32	upstream	58cf05f5	c2c1d1dd	.config	log	report			info
ci-upstream-kasan-gce	2020/12/11 05:51	upstream	a2f5ea9e	f900b48c	.config	log	report			info
ci-upstream-kasan-gce	2020/12/08 00:47	upstream	cd796ed3	51a9082e	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/12/05 13:23	upstream	b3298500	50503117	.config	log	report			info
ci-upstream-kasan-gce	2020/12/01 14:36	upstream	b6505459	07bfe8a5	.config	log	report			info
ci-upstream-kasan-gce	2020/12/01 12:48	upstream	b6505459	b3a34598	.config	log	report			info
ci-upstream-kasan-gce	2020/11/29 01:49	upstream	45e885c4	a0092f9d	.config	log	report			info
ci-upstream-kasan-gce	2020/11/26 22:16	upstream	4df91062	1d2b823e	.config	log	report			info
ci-upstream-kasan-gce	2020/11/26 14:01	upstream	fa02fcd9	1d2b823e	.config	log	report			info
ci-upstream-net-this-kasan-gce	2021/01/11 03:27	net	f97844f9	2c1f2513	.config	log	report			info
ci-upstream-net-this-kasan-gce	2021/01/10 11:37	net	f97844f9	2c1f2513	.config	log	report			info
ci-upstream-net-this-kasan-gce	2021/01/09 21:38	net	c49243e8	2c1f2513	.config	log	report			info
ci-upstream-net-this-kasan-gce	2021/01/07 23:21	net	1f685e6a	c104d4a3	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/16 23:25	net-next	9ab7e76a	65a7a854	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/09 00:32	net-next	58334e75	c104d4a3	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/06 05:36	net-next	f6e7a024	b1c228e1	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/21 17:02	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/19 07:25	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/03/29 19:13	net-next	1a147b74	05736b29	.config	log	report
ci-upstream-net-kasan-gce	2020/03/07 10:44	net-next	68e2c376	fd2a5f28	.config	log	report