INFO: task hung in aead

INFO: task hung in aead_recvmsg
Status: upstream: reported C repro on 2017/12/10 13:34
Reported-by: syzbot+56c7151cad94eec37c521f0e47d2eee53f9361c4@syzkaller.appspotmail.com
First crash: 572d, last: 21h14m

duplicates (2):
Title	Repro	Bisected	Count	Last	Reported	Patched	Status
INFO: task hung in lock_sock_nested	C		1828	8d22h	563d	0/13	closed as dup on 2017/12/23 20:15
INFO: task hung in exit_aio	C		17474	77d	563d	0/13	closed as dup on 2018/04/08 22:50

similar bugs (2):
Kernel	Title	Repro	Bisected	Count	Last	Reported	Patched	Status
linux-4.19	INFO: task hung in aead_recvmsg	C		3	3d00h	64d	0/1	upstream: reported C repro on 2019/04/23 11:09
linux-4.14	INFO: task hung in aead_recvmsg	C		1	65d	65d	0/1	upstream: reported C repro on 2019/04/21 21:05

Sample crash report:

INFO: task syz-executor370:7818 blocked for more than 143 seconds.
      Not tainted 5.1.0-rc5+ #70
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor370 D28120  7818   7794 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x813/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 schedule_timeout+0x8ca/0xfd0 kernel/time/timer.c:1779
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 crypto_wait_req include/linux/crypto.h:680 [inline]
 _aead_recvmsg crypto/algif_aead.c:313 [inline]
 aead_recvmsg+0x1492/0x1ab0 crypto/algif_aead.c:334
 sock_recvmsg_nosec net/socket.c:881 [inline]
 sock_recvmsg net/socket.c:888 [inline]
 sock_recvmsg+0xd0/0x110 net/socket.c:884
 sock_read_iter+0x299/0x3b0 net/socket.c:966
 call_read_iter include/linux/fs.h:1860 [inline]
 do_iter_readv_writev+0x700/0x8e0 fs/read_write.c:679
 do_iter_read+0x27c/0x660 fs/read_write.c:920
 vfs_readv+0xf0/0x160 fs/read_write.c:984
 do_readv+0x15e/0x370 fs/read_write.c:1017
 __do_sys_readv fs/read_write.c:1104 [inline]
 __se_sys_readv fs/read_write.c:1101 [inline]
 __x64_sys_readv+0x75/0xb0 fs/read_write.c:1101
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441349
Code: Bad RIP value.
RSP: 002b:00007ffd03d84728 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 00000000004a23d8 RCX: 0000000000441349
RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 0000000000052e64 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402170
R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000

Showing all locks held in the system:
1 lock held by khungtaskd/1043:
 #0: 00000000e2e42ae5 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5056
1 lock held by rsyslogd/7678:
 #0: 0000000033d8ba67 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/7768:
 #0: 00000000695c8b33 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000b0b463f2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7769:
 #0: 000000006818530d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000ed610f73 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7770:
 #0: 00000000fbcde1ed (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000817f6048 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7771:
 #0: 000000001606e8d4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000005557a95 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7772:
 #0: 00000000f6ef863e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000c55157f8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7773:
 #0: 000000004cd964f4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000091a9b2ef (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7774:
 #0: 00000000e33d0631 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000001081adc (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
1 lock held by syz-executor370/7818:
 #0: 000000009baf1423 (sk_lock-AF_ALG){+.+.}, at: lock_sock include/net/sock.h:1513 [inline]
 #0: 000000009baf1423 (sk_lock-AF_ALG){+.+.}, at: af_alg_wait_for_data+0x215/0x540 crypto/af_alg.c:764

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

NMI backtrace for cpu 0
CPU: 0 PID: 1043 Comm: khungtaskd Not tainted 5.1.0-rc5+ #70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline]
 watchdog+0x9b7/0xec0 kernel/hung_task.c:288
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:

All crashes (11946):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci-upstream-kasan-gce-root	2019/04/16 14:28	upstream	618d919c	505ab413	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce	2018/07/21 14:42	upstream	48e5aee8	8cc079c3	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/04/16 18:47	net	614c70f3	505ab413	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2018/07/21 14:31	net	fcf4793e	8cc079c3	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2018/07/21 12:36	net-next	99d20a46	8cc079c3	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/16 10:14	net-next	47a1a225	505ab413	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2019/04/16 12:49	linux-next	de3c659c	505ab413	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2018/07/22 11:32	linux-next	89cf5535	8cc079c3	.config	log	report	syz	C	davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce	2019/05/02 14:38	upstream	459e3a21	7516d9fa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2019/02/27 08:53	upstream	7d762d69	f2468c12	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-386	2018/09/05 09:16	upstream	28619527	a4718693	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/24 17:18	net	85f9aa75	472f0082	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/22 10:14	net	48620e34	34bf9440	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/22 04:01	net	48620e34	34bf9440	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/21 21:09	net	48620e34	34bf9440	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/21 16:43	net	48620e34	34bf9440	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/15 01:59	net	385097a3	442206d7	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/09 17:46	net	38e406f6	0159583c	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/06/05 21:56	net	fdf71426	bfb4a51e	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/05/27 08:27	net	33403121	85c57315	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/05/21 07:10	net	f49aa1de	8285069f	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/05/19 03:30	net	5a35c8ea	5a4461b0	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/05/03 13:36	net	ea986679	1bfa09b9	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/05/03 03:49	net	4dd2b82d	e9039493	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/04/28 21:52	net	21f1b8a6	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/04/21 06:38	net	12c76861	b0e8efcb	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-this-kasan-gce	2019/04/21 02:45	net	d1bcf2b6	b0e8efcb	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/25 21:09	net-next	045df37e	0a8d1a96	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/25 09:57	net-next	7d30a7f6	82c13b6b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/18 10:36	net-next	6a6b5c8b	442206d7	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/18 05:18	net-next	6a6b5c8b	442206d7	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/16 23:56	net-next	9d9f3fba	442206d7	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/14 11:04	net-next	514fcaac	998ccc76	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/09 12:11	net-next	8d94a873	0159583c	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/06/05 23:02	net-next	2a99283c	bfb4a51e	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/24 14:48	net-next	dfb569f2	0dadcd9d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/20 11:58	net-next	35c99ffa	5a4461b0	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/20 00:55	net-next	35c99ffa	5a4461b0	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/19 17:23	net-next	35c99ffa	5a4461b0	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/17 04:54	net-next	35c99ffa	7fb690f3	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/15 15:51	net-next	35c99ffa	3345130d	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/08 12:02	net-next	a55a385d	a7383bfa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/08 09:25	net-next	a55a385d	a7383bfa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/04 02:26	net-next	8ef988b9	d28f4ce5	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/02 05:14	net-next	cd86972a	7516d9fa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/01 22:25	net-next	cd86972a	7516d9fa	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/01 15:02	net-next	2b5bc3c8	618456b4	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/05/01 07:13	net-next	a658a3f2	618456b4	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/29 17:48	net-next	88d6272a	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/29 03:45	net-next	b1a79360	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/29 02:08	net-next	b1a79360	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/28 03:34	net-next	7cb523d4	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/26 16:37	net-next	9157bc2a	b617407b	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/25 21:44	net-next	c049d56e	f46aabc8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/25 21:35	net-next	c049d56e	f46aabc8	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/22 17:55	net-next	4e54507a	0a77c33c	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-net-kasan-gce	2019/04/22 13:52	net-next	4e54507a	0a77c33c	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org