INFO: task kworker/1:3:4093 blocked for more than 143 seconds.
Not tainted 5.17.0-rc6-syzkaller-00100-g98d107b84614 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:23984 pid: 4093 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x931/0x22e0 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6436
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
unregister_netdev+0xe/0x20 net/core/dev.c:10473
usbnet_disconnect+0x139/0x270 drivers/net/usb/usbnet.c:1623
usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
__device_release_driver+0x627/0x760 drivers/base/dd.c:1209
device_release_driver_internal drivers/base/dd.c:1242 [inline]
device_release_driver+0x26/0x40 drivers/base/dd.c:1265
bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
device_del+0x4f3/0xc80 drivers/base/core.c:3592
usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419
usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2228
hub_port_connect drivers/usb/core/hub.c:5207 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x1e39/0x44d0 drivers/usb/core/hub.c:5747
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
worker_thread+0x657/0x1110 kernel/workqueue.c:2454
kthread+0x2ef/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
6 locks held by kworker/1:1/23:
#0:
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc90000197db8
(
(work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810d0bf220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88810d0bf220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5693
#3: ffff88810d0d2578 (
&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3095 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5259 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5665 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1fba/0x44d0 drivers/usb/core/hub.c:5747
#4: ffff88810c05a768
(hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5260 [inline]
(hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
(hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5665 [inline]
(hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1fe3/0x44d0 drivers/usb/core/hub.c:5747
#5: ffffffff881c6d30 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}
, at: hub_port_reset+0x191/0x1c20 drivers/usb/core/hub.c:2953
1 lock held by khungtaskd/25:
#0: ffffffff87891880 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
3 locks held by kworker/1:2/69:
3 locks held by dhcpcd/1206:
2 locks held by getty/1228:
#0: ffff88810ea1f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1:
ffffc900000432e8
(&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2075
3 locks held by udevd/4079:
#0: ffff888116ca0088 (&of->mutex
){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x6f0 fs/kernfs/file.c:242
#1: ffff888114698490 (kn->active#51){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
#1: ffff888114698490 (kn->active#51){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x6f0 fs/kernfs/file.c:242
#2:
ffff8881137fa220
(&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
(&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
6 locks held by kworker/1:3/4093:
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc90001957db8 ((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810cf2f220 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:767 [inline]
, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5693
#3: ffff88810b904220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88810b904220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2219
#4: ffff8881178731a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8881178731a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1036 [inline]
#4: ffff8881178731a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1239 [inline]
#4: ffff8881178731a8 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1265
#5: ffffffff88885b68 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0xe/0x20 net/core/dev.c:10473
6 locks held by kworker/1:4/4094:
#0: ffff8881039c0538
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc90001797db8 ((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810ceef220
(
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5693
#3: ffff88811b864220
(&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:948
#4: ffff8881124941a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8881124941a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:948
#5: ffffffff88885b68 (
rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:9789
6 locks held by kworker/0:5/4129:
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc900018e7db8 (
(work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810cfff220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88810cfff220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5693
#3: ffff8881137fa220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff8881137fa220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:948
#4:
ffff88810da0a1a8
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
(&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:948
#5: ffffffff88885b68 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:9789
3 locks held by kworker/1:6/4572:
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff8881039c0538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc900012bfdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}
, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810d0d7220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88810d0d7220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5693
3 locks held by kworker/1:7/6036:
#0: ffff88810e501d38 (
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc9000a9f7db8 ((addr_chk_work).work){+.+.}-{0:0}
, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffffffff88885b68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4608
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 25 Comm: khungtaskd Not tainted 5.17.0-rc6-syzkaller-00100-g98d107b84614 #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:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2ef/0x3a0 kernel/kthread.c:377
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: 1206 Comm: dhcpcd Not tainted 5.17.0-rc6-syzkaller-00100-g98d107b84614 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0xd4d/0x56c0 kernel/locking/lockdep.c:5037
Code: 03 0f b6 04 02 84 c0 74 0d 3c 03 7f 09 48 8b 3c 24 e8 97 f5 49 00 41 8b 85 f0 09 00 00 83 c0 01 83 f8 2f 41 89 85 f0 09 00 00 <0f> 87 18 0c 00 00 3b 05 27 a9 ca 08 41 bf 01 00 00 00 0f 86 c8 00
RSP: 0018:ffffc90000e8f088 EFLAGS: 00000097
RAX: 0000000000000003 RBX: 00000000c5c41568 RCX: 5f690f0e5b1ea60f
RDX: 1ffff110221b0bbe RSI: 0000000000000001 RDI: 00000000e8b5d5e9
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8a7ed707
R10: fffffbfff14fdae0 R11: 0000000000000001 R12: ffff888110d85e48
R13: ffff888110d85400 R14: ffffffff88b7ec48 R15: 0000000000000000
FS: 00007f1a41581740(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f33621008 CR3: 000000010dbde000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5639 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604
console_trylock_spinning kernel/printk/printk.c:1885 [inline]
vprintk_emit+0x39a/0x4f0 kernel/printk/printk.c:2244
dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4604
dev_printk_emit+0xba/0xf1 drivers/base/core.c:4615
__netdev_printk+0x1c6/0x27a net/core/dev.c:10782
netdev_err+0xd7/0x109 net/core/dev.c:10834
asix_set_sw_mii drivers/net/usb/asix_common.c:303 [inline]
asix_set_sw_mii drivers/net/usb/asix_common.c:297 [inline]
asix_check_host_enable.cold+0x22/0x66 drivers/net/usb/asix_common.c:74
asix_mdio_read+0x90/0x250 drivers/net/usb/asix_common.c:499
asix_phy_reset+0x104/0x170 drivers/net/usb/asix_devices.c:215
ax88178_reset+0x3f5/0x1310 drivers/net/usb/asix_devices.c:977
usbnet_open+0xc8/0x5d0 drivers/net/usb/usbnet.c:894
__dev_open+0x2c4/0x4d0 net/core/dev.c:1407
__dev_change_flags+0x583/0x750 net/core/dev.c:8139
dev_change_flags+0x93/0x170 net/core/dev.c:8210
devinet_ioctl+0x15d1/0x1ca0 net/ipv4/devinet.c:1144
inet_ioctl+0x1e6/0x320 net/ipv4/af_inet.c:969
sock_do_ioctl+0xcc/0x230 net/socket.c:1122
sock_ioctl+0x2f1/0x640 net/socket.c:1239
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
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: 0033:0x7f1a4166f0e7
Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 61 9d 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc64b885b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1a415816c8 RCX: 00007f1a4166f0e7
RDX: 00007ffc64b987a8 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 00007ffc64ba8958 R08: 00007ffc64b98768 R09: 00007ffc64b98718
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc64b987a8 R14: 0000000000000028 R15: 0000000000008914
----------------
Code disassembly (best guess):
0: 03 0f add (%rdi),%ecx
2: b6 04 mov $0x4,%dh
4: 02 84 c0 74 0d 3c 03 add 0x33c0d74(%rax,%rax,8),%al
b: 7f 09 jg 0x16
d: 48 8b 3c 24 mov (%rsp),%rdi
11: e8 97 f5 49 00 callq 0x49f5ad
16: 41 8b 85 f0 09 00 00 mov 0x9f0(%r13),%eax
1d: 83 c0 01 add $0x1,%eax
20: 83 f8 2f cmp $0x2f,%eax
23: 41 89 85 f0 09 00 00 mov %eax,0x9f0(%r13)
* 2a: 0f 87 18 0c 00 00 ja 0xc48 <-- trapping instruction
30: 3b 05 27 a9 ca 08 cmp 0x8caa927(%rip),%eax # 0x8caa95d
36: 41 bf 01 00 00 00 mov $0x1,%r15d
3c: 0f .byte 0xf
3d: 86 c8 xchg %cl,%al