INFO: task hung in aead

[upstream] 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: 351d, last: 4h43m

duplicates:
Title	Repro	Count	Last	Reported	Patched	Status
INFO: task hung in lock_sock_nested	C	1502	now	342d		closed as dup on 2017/12/23 20:15
INFO: task hung in exit_aio	C	245	4d01h	342d		closed as dup on 2018/04/08 22:50

Sample crash report:

random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
INFO: task syz-executor633:4560 blocked for more than 140 seconds.
      Not tainted 4.18.0-rc5+ #157
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor633 D24000  4560   4558 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2853 [inline]
 __schedule+0x87c/0x1ed0 kernel/sched/core.c:3501
 schedule+0xfb/0x450 kernel/sched/core.c:3545
 schedule_timeout+0x1cc/0x260 kernel/time/timer.c:1777
 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+0x430/0x8d0 kernel/sched/completion.c:136
 crypto_wait_req include/linux/crypto.h:512 [inline]
 _aead_recvmsg crypto/algif_aead.c:313 [inline]
 aead_recvmsg+0x1544/0x1bb0 crypto/algif_aead.c:334
 sock_recvmsg_nosec+0x8c/0xb0 net/socket.c:814
 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2287
 __sys_recvmmsg+0x301/0xba0 net/socket.c:2399
 do_sys_recvmmsg+0x181/0x1a0 net/socket.c:2475
 __do_sys_recvmmsg net/socket.c:2493 [inline]
 __se_sys_recvmmsg net/socket.c:2489 [inline]
 __x64_sys_recvmmsg+0xbe/0x150 net/socket.c:2489
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440379
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007ffedddb43b8 EFLAGS: 00000207 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000440379
RDX: 0000000000000002 RSI: 0000000020003340 RDI: 000000000000000a
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c00
R13: 0000000000401c90 R14: 0000000000000000 R15: 0000000000000000

Showing all locks held in the system:
1 lock held by khungtaskd/901:
 #0: (____ptrval____) (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x428 kernel/locking/lockdep.c:4461
1 lock held by rsyslogd/4443:
2 locks held by getty/4533:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4534:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4535:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4536:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4537:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4538:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
2 locks held by getty/4539:
 #0: (____ptrval____) (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
 #1: (____ptrval____) (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140
1 lock held by syz-executor633/4560:
 #0: (____ptrval____) (sk_lock-AF_ALG){+.+.}, at: lock_sock include/net/sock.h:1474 [inline]
 #0: (____ptrval____) (sk_lock-AF_ALG){+.+.}, at: aead_recvmsg+0xbb/0x1bb0 crypto/algif_aead.c:332

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

NMI backtrace for cpu 0
CPU: 0 PID: 901 Comm: khungtaskd Not tainted 4.18.0-rc5+ #157
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+0x1c9/0x2b4 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103
 nmi_trigger_cpumask_backtrace+0x151/0x192 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:138 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline]
 watchdog+0x9c4/0xf80 kernel/hung_task.c:252
 kthread+0x345/0x410 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54

All crashes (11721):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
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	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-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-root	2018/11/05 19:51	upstream	65102238	8bd6bd63	.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	2018/09/25 15:34	upstream	2dd68cc7	0e7547d7	.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	2018/11/14 06:03	net	db8ddde7	5f5f6d14	.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	2018/11/13 20:03	net	77e461d1	5f5f6d14	.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	2018/11/11 15:32	net	63c82997	f3c4e618	.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	2018/11/11 04:30	net	fbd1d524	f3c4e618	.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	2018/11/10 20:14	net	fbd1d524	f3c4e618	.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	2018/11/10 13:08	net	d02854dc	f9815aaf	.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	2018/11/09 00:23	net	b25ddb00	e85d2a61	.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	2018/11/08 17:34	net	69e36298	e85d2a61	.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	2018/11/07 02:16	net	8053e5b9	8bd6bd63	.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	2018/11/06 16:36	net	a422757e	8bd6bd63	.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	2018/11/04 17:17	net	12480e3b	8bd6bd63	.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	2018/10/31 03:39	net	a6b3a3fa	4ccf7bb4	.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	2018/10/30 14:25	net	da715775	8dbb755a	.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	2018/10/29 18:39	net	9f51ae62	7df9db2e	.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	2018/10/27 21:21	net	6788fac8	8efba39a	.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	2018/11/17 17:05	net-next	e119a369	b08ee62a	.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	2018/11/16 16:33	net-next	5aa25c05	f5e275d1	.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	2018/11/16 14:02	net-next	5aa25c05	f5e275d1	.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	2018/11/16 02:08	net-next	ba2f55b0	3a41052e	.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	2018/11/11 21:43	net-next	d79e26a7	7b5f8621	.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	2018/11/10 00:59	net-next	29e12207	f9815aaf	.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	2018/11/09 12:47	net-next	5867b330	8fd01d3a	.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	2018/11/09 11:23	net-next	5867b330	8fd01d3a	.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	2018/11/09 08:36	net-next	5867b330	8fd01d3a	.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	2018/11/06 20:02	net-next	8053e5b9	8bd6bd63	.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	2018/11/04 20:49	net-next	7c6c54b5	8bd6bd63	.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	2018/11/03 15:31	net-next	7c6c54b5	8bd6bd63	.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	2018/11/02 19:18	net-next	7c6c54b5	8bd6bd63	.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	2018/11/01 09:10	net-next	4b427452	1f38e9ae	.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	2018/11/01 01:50	net-next	4b427452	1f38e9ae	.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	2018/11/01 00:14	net-next	4b427452	89781090	.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	2018/10/31 20:18	net-next	4b427452	89781090	.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	2018/10/31 15:41	net-next	4b427452	89781090	.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	2018/10/30 20:37	net-next	4b427452	8dbb755a	.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	2018/10/29 20:04	net-next	9f51ae62	7df9db2e	.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	2018/10/27 11:56	net-next	345671ea	a8292de9	.config	log	report			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	2018/10/06 11:41	linux-next	12ffaa11	8b311eaf	.config	log	report			davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org