INFO: task kworker/1:5:3677 blocked for more than 143 seconds.
Not tainted 5.16.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D
stack:21944 pid: 3677 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
usb_kill_urb+0x1d5/0x310 drivers/usb/core/urb.c:720
usb_start_wait_urb+0x265/0x530 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x2a5/0x4b0 drivers/usb/core/message.c:153
usb_get_descriptor+0xb5/0x3c0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x8a/0xe0 drivers/usb/core/message.c:1071
hub_port_init+0x106f/0x2e60 drivers/usb/core/hub.c:4922
hub_port_connect+0xc30/0x2910 drivers/usb/core/hub.c:5282
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5497
port_event+0xb67/0x1220 drivers/usb/core/hub.c:5643
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5725
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1de40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3282:
#0: ffff88807f253098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002ba32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2113
1 lock held by syz-fuzzer/3631:
#0: ffff8880b9b395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478
1 lock held by syz-executor.0/3637:
#0: ffffffff8cb226a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#0: ffffffff8cb226a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x356/0x740 kernel/rcu/tree_exp.h:836
5 locks held by kworker/1:5/3677:
#0: ffff88801634a138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90002b3fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffff88814774c220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88814774c220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5671
#3: ffff88814774f5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff88814774f5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0x4f4/0x2910 drivers/usb/core/hub.c:5249
#4: ffff8881476d9068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect+0x51d/0x2910 drivers/usb/core/hub.c:5250
2 locks held by kworker/0:9/5849:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90002c9fd20 (key_gc_work){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
1 lock held by syz-executor.1/25185:
#0: ffffffff8cb226a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#0: ffffffff8cb226a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x277/0x740 kernel/rcu/tree_exp.h:836
2 locks held by kworker/1:1/30893:
#0: ffff888011466538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90004b37d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 24701 Comm: syz-executor.3 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x100f/0x2b00 kernel/locking/lockdep.c:5022
Code: c1 c7 04 41 31 f7 49 c1 e7 20 48 c7 c0 e8 c9 fe 8d 48 c1 e8 03 8a 04 38 84 c0 0f 85 f2 12 00 00 49 09 df 83 3d 69 b9 98 0c 00 <4c> 8b 64 24 18 0f 85 56 03 00 00 83 bc 24 88 00 00 00 00 0f 84 9a
RSP: 0018:ffffc90002b0f820 EFLAGS: 00000046
RAX: 1ffffffff1bfd900 RBX: 000000008f866c97 RCX: 0000000000810d7d
RDX: 000000000f0b8a5d RSI: 00000000606a5f10 RDI: dffffc0000000000
RBP: ffffc90002b0f970 R08: dffffc0000000000 R09: fffffbfff1ff39e5
R10: fffffbfff1ff39e5 R11: 0000000000000000 R12: 000000000000020e
R13: ffff88801f5ea760 R14: ffff88801f5e9d00 R15: 912a83398f866c97
FS: 0000555555cfc400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555715f848 CR3: 0000000077e67000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5637
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
remove_wait_queue+0x20/0x130 kernel/sched/wait.c:55
do_wait+0x92b/0x9d0 kernel/exit.c:1546
kernel_wait4+0x2a3/0x3c0 kernel/exit.c:1684
__do_sys_wait4 kernel/exit.c:1712 [inline]
__se_sys_wait4 kernel/exit.c:1708 [inline]
__x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1708
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fbe2385d337
Code: 89 7c 24 10 48 89 4c 24 18 e8 35 50 02 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 65 50 02 00 8b 44
RSP: 002b:00007fffbc3075d0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000615 RCX: 00007fbe2385d337
RDX: 0000000040000001 RSI: 00007fffbc30765c RDI: 00000000ffffffff
RBP: 00007fffbc30765c R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000164b45 R14: 0000000000000000 R15: 00007fffbc3076c0
----------------
Code disassembly (best guess):
0: c1 c7 04 rol $0x4,%edi
3: 41 31 f7 xor %esi,%r15d
6: 49 c1 e7 20 shl $0x20,%r15
a: 48 c7 c0 e8 c9 fe 8d mov $0xffffffff8dfec9e8,%rax
11: 48 c1 e8 03 shr $0x3,%rax
15: 8a 04 38 mov (%rax,%rdi,1),%al
18: 84 c0 test %al,%al
1a: 0f 85 f2 12 00 00 jne 0x1312
20: 49 09 df or %rbx,%r15
23: 83 3d 69 b9 98 0c 00 cmpl $0x0,0xc98b969(%rip) # 0xc98b993
* 2a: 4c 8b 64 24 18 mov 0x18(%rsp),%r12 <-- trapping instruction
2f: 0f 85 56 03 00 00 jne 0x38b
35: 83 bc 24 88 00 00 00 cmpl $0x0,0x88(%rsp)
3c: 00
3d: 0f .byte 0xf
3e: 84 .byte 0x84
3f: 9a (bad)