INFO: task kworker/1:15:4575 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-13760-g032dcf09e2bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:15 state:D stack:22168 pid: 4575 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6428
schedule+0xeb/0x1b0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
add_early_randomness drivers/char/hw_random/core.c:69 [inline]
hwrng_register+0x3bf/0x680 drivers/char/hw_random/core.c:599
chaoskey_probe+0x7f0/0xb10 drivers/usb/misc/chaoskey.c:205
usb_probe_interface+0x66e/0xb60 drivers/usb/core/driver.c:396
call_driver_probe+0x96/0x250
really_probe+0x220/0x940 drivers/base/dd.c:634
__driver_probe_device+0x1f4/0x3f0 drivers/base/dd.c:764
driver_probe_device+0x50/0x240 drivers/base/dd.c:794
__device_attach_driver+0x273/0x3d0 drivers/base/dd.c:917
bus_for_each_drv+0x18a/0x210 drivers/base/bus.c:427
__device_attach+0x372/0x5a0 drivers/base/dd.c:989
bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:487
device_add+0xb20/0xf90 drivers/base/core.c:3417
usb_set_configuration+0x1a5f/0x20e0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
usb_probe_device+0x131/0x260 drivers/usb/core/driver.c:293
call_driver_probe+0x96/0x250
really_probe+0x220/0x940 drivers/base/dd.c:634
__driver_probe_device+0x1f4/0x3f0 drivers/base/dd.c:764
driver_probe_device+0x50/0x240 drivers/base/dd.c:794
__device_attach_driver+0x273/0x3d0 drivers/base/dd.c:917
bus_for_each_drv+0x18a/0x210 drivers/base/bus.c:427
__device_attach+0x372/0x5a0 drivers/base/dd.c:989
bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:487
device_add+0xb20/0xf90 drivers/base/core.c:3417
usb_new_device+0xbfc/0x18a0 drivers/usb/core/hub.c:2566
hub_port_connect+0x106b/0x2930 drivers/usb/core/hub.c:5363
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5507
port_event+0xeb7/0x1390 drivers/usb/core/hub.c:5663
hub_event+0x5be/0xd70 drivers/usb/core/hub.c:5745
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cb1eee0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by hwrng/755:
#0: ffffffff8d24ccc8 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0xec/0x470 drivers/char/hw_random/core.c:503
1 lock held by klogd/2970:
#0: ffff8880b9b39b98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:544
2 locks held by getty/3303:
#0: ffff888026e3b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
6 locks held by kworker/1:15/4575:
#0: ffff888011e2e138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc90002e5fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888021788190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff888021788190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bf/0xd70 drivers/usb/core/hub.c:5691
#3: ffff88807e656190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff88807e656190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8a/0x5a0 drivers/base/dd.c:964
#4: ffff8880757b1118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#4: ffff8880757b1118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8a/0x5a0 drivers/base/dd.c:964
#5: ffffffff8d24ccc8 (reading_mutex){+.+.}-{3:3}, at: add_early_randomness drivers/char/hw_random/core.c:69 [inline]
#5: ffffffff8d24ccc8 (reading_mutex){+.+.}-{3:3}, at: hwrng_register+0x3bf/0x680 drivers/char/hw_random/core.c:599
2 locks held by kworker/u4:9/4617:
5 locks held by kworker/u4:13/4750:
3 locks held by udevd/5494:
#0: ffff88801d2c4c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:197 [inline]
#0: ffff88801d2c4c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x19b/0x570 fs/kernfs/file.c:236
#1: ffff8880788bbae8 (kn->active#86){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#1: ffff8880788bbae8 (kn->active#86){++++}-{0:0}, at: kernfs_fop_read_iter+0x1b3/0x570 fs/kernfs/file.c:236
#2: ffff88807e656190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88807e656190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x30/0x390 drivers/usb/core/sysfs.c:873
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.18.0-syzkaller-13760-g032dcf09e2bf #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+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xd18/0xd60 kernel/hung_task.c:378
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
NMI backtrace for cpu 1
CPU: 1 PID: 1398 Comm: kworker/u4:6 Not tainted 5.18.0-syzkaller-13760-g032dcf09e2bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:validate_chain+0x5d0/0x65c0 kernel/locking/lockdep.c:3841
Code: 00 48 c7 c0 54 b5 03 8e 48 c1 e8 03 42 8a 04 20 84 c0 0f 85 82 51 00 00 83 3d ff 31 9b 0c 00 0f 84 61 0e 00 00 bb 01 00 00 00 <48> c7 84 24 00 01 00 00 0e 36 e0 45 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000579eaa0 EFLAGS: 00000002
RAX: 1ffffffff1c07600 RBX: 0000000000000001 RCX: ffffffff81687eb6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fd46fc0
RBP: ffffc9000579edd8 R08: dffffc0000000000 R09: fffffbfff1fa8df9
R10: fffffbfff1fa8df9 R11: 1ffffffff1fa8df8 R12: dffffc0000000000
R13: ffff8880211dbb00 R14: bdffcea3fe202d3d R15: ffffffff8fdef658
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37491691b8 CR3: 00000000229f4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_acquire+0x129a/0x1f80 kernel/locking/lockdep.c:5053
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5665
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
__debug_object_init+0xdc/0x1860 lib/debugobjects.c:566
debug_object_init lib/debugobjects.c:617 [inline]
debug_object_activate+0x188/0x6a0 lib/debugobjects.c:703
debug_rcu_head_queue kernel/rcu/rcu.h:178 [inline]
kvfree_call_rcu+0xb4/0x840 kernel/rcu/tree.c:3638
cfg80211_update_known_bss+0x15f/0x990
cfg80211_bss_update+0x176/0x2090 net/wireless/scan.c:1715
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2473 [inline]
cfg80211_inform_bss_frame_data+0x9c3/0x20e0 net/wireless/scan.c:2506
ieee80211_bss_info_update+0x78a/0xc30 net/mac80211/scan.c:190
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1659/0x28c0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1581
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 00 48 c7 add %cl,-0x39(%rax)
3: c0 54 b5 03 8e rclb $0x8e,0x3(%rbp,%rsi,4)
8: 48 c1 e8 03 shr $0x3,%rax
c: 42 8a 04 20 mov (%rax,%r12,1),%al
10: 84 c0 test %al,%al
12: 0f 85 82 51 00 00 jne 0x519a
18: 83 3d ff 31 9b 0c 00 cmpl $0x0,0xc9b31ff(%rip) # 0xc9b321e
1f: 0f 84 61 0e 00 00 je 0xe86
25: bb 01 00 00 00 mov $0x1,%ebx
* 2a: 48 c7 84 24 00 01 00 movq $0x45e0360e,0x100(%rsp) <-- trapping instruction
31: 00 0e 36 e0 45
36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
3d: fc ff df