INFO: task kworker/1:3:4052 blocked for more than 143 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:22424 pid: 4052 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x931/0x2360 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
__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:10467
usbnet_disconnect+0x139/0x270 drivers/net/usb/usbnet.c:1623
usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
__device_release_driver+0x5d7/0x700 drivers/base/dd.c:1206
device_release_driver_internal drivers/base/dd.c:1237 [inline]
device_release_driver+0x26/0x40 drivers/base/dd.c:1260
bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
device_del+0x502/0xd50 drivers/base/core.c:3596
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:5202 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1e39/0x44d0 drivers/usb/core/hub.c:5742
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
worker_thread+0x657/0x1110 kernel/workqueue.c:2454
kthread+0x40b/0x500 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/1:6:4687 blocked for more than 145 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:23160 pid: 4687 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x931/0x2360 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
netdev_run_todo+0x70f/0xaa0 net/core/dev.c:9961
r871xu_dev_remove+0x24f/0x2c0 drivers/staging/rtl8712/usb_intf.c:599
usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
__device_release_driver+0x5d7/0x700 drivers/base/dd.c:1206
device_release_driver_internal drivers/base/dd.c:1237 [inline]
device_release_driver+0x26/0x40 drivers/base/dd.c:1260
bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
device_del+0x502/0xd50 drivers/base/core.c:3596
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:5202 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x1e39/0x44d0 drivers/usb/core/hub.c:5742
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
process_scheduled_works kernel/workqueue.c:2370 [inline]
worker_thread+0x833/0x1110 kernel/workqueue.c:2456
kthread+0x40b/0x500 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
3 locks held by kworker/1:1/23:
#0: ffff88810db3c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:631 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc90000197db0 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffffffff88877368 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4595
1 lock held by khungtaskd/25:
#0: ffffffff878923c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
4 locks held by dhcpcd/1206:
2 locks held by getty/1228:
#0: ffff88810e3e4098 (&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:2077
6 locks held by kworker/1:3/4052:
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc90001c47db0
((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2:
ffff88810cd2e220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
ffff88810cd2e220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688
#3: ffff88811b822220 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:760 [inline]
, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2219
#4: ffff8881185e81a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#4: ffff8881185e81a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
#4: ffff8881185e81a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1234 [inline]
#4: ffff8881185e81a8 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1260
#5: ffffffff88877368 (rtnl_mutex
){+.+.}-{3:3}
, at: unregister_netdev+0xe/0x20 net/core/dev.c:10467
6 locks held by kworker/1:4/4167:
#0:
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc900029d7db0 (
(work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810cd29220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88810cd29220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688
#3: ffff88810dcc6220 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:760 [inline]
, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:945
#4: ffff88811859a1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#4: ffff88811859a1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:945
#5: ffffffff88877368 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_register_hw+0x1b50/0x3ec0 net/mac80211/main.c:1242
6 locks held by kworker/0:3/26516:
6 locks held by kworker/1:6/4687:
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1:
ffffc90009107db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810cdef220
(&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:760 [inline]
, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688
#3: ffff888117928220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#3: ffff888117928220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2219
#4: ffff888114e4c1a8
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
(&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1033 [inline]
(&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1234 [inline]
(&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1260
#5: ffffffff88877368
(
rtnl_mutex){+.+.}-{3:3}, at: netdev_run_todo+0x70f/0xaa0 net/core/dev.c:9961
6 locks held by kworker/0:7/6046:
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc9000c54fdb0
((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2: ffff88810ce3c220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88810ce3c220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688
#3: ffff888112de2220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#3: ffff888112de2220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:945
#4: ffff888109b3c1a8
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
(&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:945
#5: ffffffff88877368
(rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:9783
7 locks held by kworker/1:2/9493:
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888103d8fd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc9000a80fdb0
(
(work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
#2:
ffff88810cdeb220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
ffff88810cdeb220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688
#3:
ffff88810cdee5c0
(&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3091 [inline]
(&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5254 [inline]
(&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
(&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5660 [inline]
(&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1fba/0x44d0 drivers/usb/core/hub.c:5742
#4: ffff88810ca69d68 (hcd->address0_mutex){+.+.}-{3:3}
, at: hub_port_connect drivers/usb/core/hub.c:5255 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
, at: port_event drivers/usb/core/hub.c:5660 [inline]
, at: hub_event+0x1fe3/0x44d0 drivers/usb/core/hub.c:5742
#5: ffffffff881b9590 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}
, at: hub_port_reset+0x191/0x1bc0 drivers/usb/core/hub.c:2953
#6: ffffffff878923c0 (rcu_read_lock){....}-{1:2}
, at: trace_sched_stat_runtime include/trace/events/sched.h:517 [inline]
, at: update_curr+0x2b1/0x820 kernel/sched/fair.c:876
3 locks held by udevd/12549:
#0: ffff888131a54c88
(&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
(&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x185/0x5f0 fs/kernfs/file.c:242
#1: ffff8881107cfe88 (kn->active
#48
){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
){++++}-{0:0}, at: kernfs_fop_read_iter+0x1a8/0x5f0 fs/kernfs/file.c:242
#2: ffff88810dcc6220 (&dev->mutex){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:765 [inline]
, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/12588:
#0: ffff888114ba8c88
(&of->mutex){+.+.}-{3:3}
, at: kernfs_file_read_iter fs/kernfs/file.c:203 [inline]
, at: kernfs_fop_read_iter+0x185/0x5f0 fs/kernfs/file.c:242
#1: ffff88810c40aae8 (kn->active#48
){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:204 [inline]
){++++}-{0:0}, at: kernfs_fop_read_iter+0x1a8/0x5f0 fs/kernfs/file.c:242
#2: ffff888112de2220 (&dev->mutex){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:765 [inline]
, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
2 locks held by kworker/1:5/14212:
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
#0: ffff888100066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
#1: ffffc9000c32fdb0
((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
4 locks held by syz-executor.0/16131:
#0: ffff88810e8da438 (sb_writers#4){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:729 [inline]
#0: ffff88810e8da438 (sb_writers#4){.+.+}-{0:0}, at: do_vfs_ioctl+0xe36/0x15d0 fs/ioctl.c:843
#1: ffff88811af048a0 (&sb->s_type->i_mutex_key#9
){++++}-{3:3}
, at: inode_lock include/linux/fs.h:784 [inline]
, at: vfs_fileattr_set+0x148/0xb70 fs/ioctl.c:685
#2: ffff88810e8dcbd0 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:622
#3:
ffffffff8789b428 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
ffffffff8789b428 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:840
3 locks held by syz-executor.0/16132:
#0: ffff8881318dbc70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:1034
#1: ffff88810e8da438 (sb_writers#4){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:643
#2: ffff88811af048a0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:784 [inline]
#2: ffff88811af048a0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x390 fs/ext4/file.c:262
1 lock held by syz-executor.0/16135:
#0: ffff88811af048a0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:784 [inline]
#0: ffff88811af048a0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241
1 lock held by syz-executor.0/16138:
#0: ffff88811af048a0
(
&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:784 [inline]
&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: process_measurement+0x17c0/0x1920 security/integrity/ima/ima_main.c:241
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 25 Comm: khungtaskd Not tainted 5.16.0-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:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 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+0x40b/0x500 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: 1206 Comm: dhcpcd Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp8+0x3/0x70 kernel/kcov.c:267
Code: 44 89 c6 48 83 c2 01 48 89 4c 38 f0 48 c7 44 38 e0 04 00 00 00 48 89 74 38 e8 4e 89 54 c8 20 48 89 10 c3 0f 1f 40 00 49 89 f8 03 00 00 00 4c 8b 14 24 48 89 f1 65 48 8b 34 25 80 6f 02 00 e8
RSP: 0018:ffffc90000feec90 EFLAGS: 00000212
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88810fbb9c00 RSI: 000000007ffffffe RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8215b869 R11: 0000000000000000 R12: 1ffff920001fdd95
R13: 000000007ffffffe R14: 0000000000000005 R15: ffffc90000fef0dc
FS: 00007fde6ffd1740(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bf24000 CR3: 000000010c87d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
move_right lib/vsprintf.c:589 [inline]
widen_string+0x1d4/0x2a0 lib/vsprintf.c:619
string_nocheck lib/vsprintf.c:646 [inline]
string+0x1fb/0x3d0 lib/vsprintf.c:720
vsnprintf+0x71b/0x14f0 lib/vsprintf.c:2805
sprintf+0xc0/0x100 lib/vsprintf.c:3007
print_caller kernel/printk/printk.c:1271 [inline]
info_print_prefix+0x12e/0x340 kernel/printk/printk.c:1288
record_print_text+0x14d/0x3e0 kernel/printk/printk.c:1335
console_unlock+0x2d8/0xb70 kernel/printk/printk.c:2691
vprintk_emit+0x198/0x4f0 kernel/printk/printk.c:2244
dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4608
dev_printk_emit+0xba/0xf1 drivers/base/core.c:4619
__netdev_printk+0x1c6/0x27a net/core/dev.c:10776
netdev_err+0xd7/0x109 net/core/dev.c:10828
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+0x90/0x220 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: 0033:0x7fde700bf0e7
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:00007fffdf965a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fde6ffd16c8 RCX: 00007fde700bf0e7
RDX: 00007fffdf975c48 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 00007fffdf985df8 R08: 00007fffdf975c08 R09: 00007fffdf975bb8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdf975c48 R14: 0000000000000028 R15: 0000000000008914
----------------
Code disassembly (best guess):
0: 44 89 c6 mov %r8d,%esi
3: 48 83 c2 01 add $0x1,%rdx
7: 48 89 4c 38 f0 mov %rcx,-0x10(%rax,%rdi,1)
c: 48 c7 44 38 e0 04 00 movq $0x4,-0x20(%rax,%rdi,1)
13: 00 00
15: 48 89 74 38 e8 mov %rsi,-0x18(%rax,%rdi,1)
1a: 4e 89 54 c8 20 mov %r10,0x20(%rax,%r9,8)
1f: 48 89 10 mov %rdx,(%rax)
22: c3 retq
23: 0f 1f 40 00 nopl 0x0(%rax)
27: 49 89 f8 mov %rdi,%r8
* 2a: bf 03 00 00 00 mov $0x3,%edi <-- trapping instruction
2f: 4c 8b 14 24 mov (%rsp),%r10
33: 48 89 f1 mov %rsi,%rcx
36: 65 48 8b 34 25 80 6f mov %gs:0x26f80,%rsi
3d: 02 00
3f: e8 .byte 0xe8