INFO: task syz.0.164:6325 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.164       state:D stack:23008 pid:6325  tgid:6324  ppid:5596   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c1/0x1550
 bdev_open+0xde/0xd70
 blkdev_open+0x461/0x600
 do_dentry_open+0x816/0x1380
 vfs_open+0x3b/0x340
 path_openat+0x1443/0x1d60
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe9b6d5e98e
RSP: 002b:00007fe9b7c7cb28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe9b7c7d6c0 RCX: 00007fe9b6d5e98e
RDX: 0000000000000000 RSI: 00007fe9b7c7cc00 RDI: ffffffffffffff9c
RBP: 00007fe9b7c7cc00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fe9b7026038 R14: 00007fe9b7025fa0 R15: 00007ffc30e18378
 </TASK>

Showing all locks held in the system:
locks held by kworker/u9:0/27: 5, last CPU#0:
 #0: ffff88812103bce0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160
 #1: ffff888121024408 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x57/0x7d0
 #2: ffff888121026118 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1a9/0xed0
 #3: ffffffff9ace6960 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0xb7/0x420
 #4: ffffffff8ebffb20 (text_mutex){+.+.}-{4:4}, at: arch_jump_label_transform_apply+0x17/0x30
lock
locks held by khungtaskd/34: 1, last CPU#1:
 #0: ffffffff8ed5cbe0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by dhcpcd/5340: 1, last CPU#0:
 #0: ffffffff8ed5cbe0 (rcu_read_lock){....}-{1:3}, at: sock_def_readable+0xae/0x550
locks held by getty/5421: 2, on CPU#0:
 #0: ffff888113c5f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034832e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by kworker/0:5/5669: 5, on CPU#0:
 #0: ffff888106a99140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000494fc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff888109fca1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30
 #3: ffff888109fcf568 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x20a1/0x4d30
 #4: ffff888109f60160 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x20c9/0x4d30
locks held by udevd/5736: 1, on CPU#1:
 #0: ffff88816c21b350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
locks held by syz.0.164/6325: 1, on CPU#0:
 #0: ffff88816c21b350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
locks held by syz.8.941/9860: 2, last CPU#0:
 #0: ffff88816bbfa8a0 (&ima_iint_mutex_key[depth]){+.+.}-{4:4}, at: process_measurement+0x7d0/0x1c10
 #1: ffff8881bb542380 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: page_cache_ra_order+0xb37/0xee0

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17d/0x390
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5562 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x0/0xb0
Code: 08 06 00 00 00 48 89 7c 0a 10 48 89 74 0a 18 48 89 44 0a 20 e9 d1 9b 20 0a cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d 98 82 cd 11 65 48 8b 15 98 82
RSP: 0018:ffffc90000007e00 EFLAGS: 00000082
RAX: 00000034bcdfcf7c RBX: 00000034bcdfcf7c RCX: 000000352bd95309
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90000007e00 R08: ffff888121028283 R09: 1ffff11024205050
R10: dffffc0000000000 R11: ffffed1024205051 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffc90000007e80 R15: 1ffff92000000fcc
FS:  000055557cc3d540(0000) GS:ffff88818d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556701932000 CR3: 0000000116528000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 sched_clock+0x37/0x60
 sched_clock_cpu+0x74/0x440
 irqtime_account_irq+0x66/0x260
 handle_softirqs+0x10b/0x860
 __irq_exit_rcu+0xcb/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x413/0xc60
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 a7 0f 52 0a e8 e2 00 3a 00 fb 4c 8b 65 c8 <49> 8d bc 24 10 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc9000451f980 EFLAGS: 00000206
RAX: 0000000000129b59 RBX: ffff88812103caa0 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e47a1a9 RDI: ffffffff8c6dcc80
RBP: ffffc9000451f9d0 R08: ffffffff907a5c7f R09: 1ffffffff20f4b8f
R10: dffffc0000000000 R11: fffffbfff20f4b90 R12: ffff88816b179e00
R13: ffff88812103ca68 R14: dffffc0000000000 R15: 1ffff11024207954
 __schedule+0x17e3/0x58f0
 schedule+0x164/0x2b0
 do_nanosleep+0x21e/0x6a0
 hrtimer_nanosleep+0x18f/0x3a0
 __se_sys_clock_nanosleep+0x35b/0x3b0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2507b592d7
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff2a33c400 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000055557cc3d540 RCX: 00007f2507b592d7
RDX: 00007fff2a33c440 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff2a33c920 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
R13: 00007fff2a33c47c R14: 00007fff2a33c510 R15: 0000000000000000
 </TASK>
