INFO: task kworker/0:30:5528 blocked for more than 145 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:30 state:D stack:26368 pid: 5528 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:720
usb_kill_urb+0x7f/0xa0 drivers/usb/core/urb.c:715
usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153
hub_port_init+0x82e/0x2f10 drivers/usb/core/hub.c:4829
hub_port_connect drivers/usb/core/hub.c:5280 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
port_event drivers/usb/core/hub.c:5634 [inline]
hub_event+0x2190/0x4330 drivers/usb/core/hub.c:5716
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b980da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
2 locks held by kworker/u4:6/1060:
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc900045c7db0 ((kfence_timer).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
1 lock held by in:imklog/6171:
3 locks held by kworker/u4:1/23242:
#0: ffff8880b9d39b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
#2: ffff88808d75cfd8 (key#16){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline]
#2: ffff88808d75cfd8 (key#16){+...}-{2:2}, at: batadv_nc_purge_paths+0xdf/0x3a0 net/batman-adv/network-coding.c:446
3 locks held by kworker/u4:10/12816:
3 locks held by kworker/1:3/27095:
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90021347db0 (fqdir_free_work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8b98a030 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x440 kernel/rcu/tree.c:3985
5 locks held by kworker/0:30/5528:
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888012bf3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90004197db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff88801eef6220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88801eef6220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5662
#3: ffff8881478cb5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff8881478cb5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5279 [inline]
#3: ffff8881478cb5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
#3: ffff8881478cb5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5634 [inline]
#3: ffff8881478cb5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2178/0x4330 drivers/usb/core/hub.c:5716
#4: ffff88801efbb368 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b5/0x2f10 drivers/usb/core/hub.c:4703
1 lock held by syz-executor.4/5862:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 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+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2937 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x3/0x70 kernel/kcov.c:284
Code: 83 c2 01 48 c7 44 30 e0 03 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 03 00 00 00 4c 8b 14 24 89 f1 65 48 8b 34 25 40 70 02 00 e8 e4
RSP: 0018:ffffc90002ae7a58 EFLAGS: 00000246
RAX: 0000000080000001 RBX: 0000000080000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffffff8b614580 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff83ef2357 R11: 0000000000086089 R12: 0000000000000001
R13: 00000000fffffffa R14: 000000000003d48c R15: ffffffff8b6145d8
FS: 00007f21aa81f8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21a5927000 CR3: 0000000076b17000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
percpu_counter_add_batch+0xbd/0x180 lib/percpu_counter.c:97
percpu_counter_add include/linux/percpu_counter.h:56 [inline]
percpu_counter_inc include/linux/percpu_counter.h:183 [inline]
alloc_empty_file+0xd2/0x170 fs/file_table.c:152
path_openat+0xe4/0x2740 fs/namei.c:3545
do_filp_open+0x1aa/0x400 fs/namei.c:3586
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_open fs/open.c:1224 [inline]
__se_sys_open fs/open.c:1220 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1220
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f21a9dae85d
Code: bb 20 00 00 75 10 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 67 f6 ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fffc873cb80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fffc873ce90 RCX: 00007f21a9dae85d
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 00005582ebabaa60
RBP: 000000000000000d R08: 00007f21a9d98bb8 R09: 00000000ffffffff
R10: 0000000000000060 R11: 0000000000000293 R12: 00000000ffffffff
R13: 00005582ebaaf060 R14: 00007fffc873ce50 R15: 00005582ebabdb00
----------------
Code disassembly (best guess):
0: 83 c2 01 add $0x1,%edx
3: 48 c7 44 30 e0 03 00 movq $0x3,-0x20(%rax,%rsi,1)
a: 00 00
c: 48 89 7c 30 e8 mov %rdi,-0x18(%rax,%rsi,1)
11: 48 89 4c 30 f0 mov %rcx,-0x10(%rax,%rsi,1)
16: 4c 89 54 d8 20 mov %r10,0x20(%rax,%rbx,8)
1b: 48 89 10 mov %rdx,(%rax)
1e: 5b pop %rbx
1f: c3 retq
20: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
27: 41 89 f8 mov %edi,%r8d
* 2a: bf 03 00 00 00 mov $0x3,%edi <-- trapping instruction
2f: 4c 8b 14 24 mov (%rsp),%r10
33: 89 f1 mov %esi,%ecx
35: 65 48 8b 34 25 40 70 mov %gs:0x27040,%rsi
3c: 02 00
3e: e8 .byte 0xe8
3f: e4 .byte 0xe4