INFO: task kworker/1:0:24 blocked for more than 143 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D
stack:21600 pid:24 tgid:24 ppid:2 flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
kernfs_create_dir_ns+0xf4/0x150 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x13b/0x2b0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x2c8/0x990 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_add+0x16f/0x240 lib/kobject.c:426
class_dir_create_and_add drivers/base/core.c:3218 [inline]
get_device_parent+0x399/0x4e0 drivers/base/core.c:3269
device_add+0x1ae/0x1a70 drivers/base/core.c:3599
netdev_register_kobject+0x187/0x3f0 net/core/net-sysfs.c:2139
register_netdevice+0x1473/0x1e90 net/core/dev.c:10491
register_netdev+0x2f/0x50 net/core/dev.c:10628
rtl871x_load_fw_cb+0x7b/0x160 drivers/staging/rtl8712/hal_init.c:60
request_firmware_work_func+0x13a/0x250 drivers/base/firmware_loader/main.c:1197
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.2.5619:30287 blocked for more than 144 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.5619 state:D
stack:28976 pid:30287 tgid:30286 ppid:25325 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
module_remove_driver+0x5c/0x260 drivers/base/module.c:108
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_register_driver_owner+0x20f/0x330 drivers/usb/gadget/udc/core.c:1722
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
raw_ioctl+0x1731/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1306
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc6c13dbfb
RSP: 002b:00007efc6adb4f10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efc6c13dbfb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004
RBP: 00007efc6adb5fe0 R08: 0000000000000000 R09: 00322e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc6adb4fb0 R14: 00000000200006c0 R15: 00007efc6c420b88
INFO: task syz.1.5620:30291 blocked for more than 144 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.5620 state:D
stack:28656 pid:30291 tgid:30290 ppid:25323 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
module_remove_driver+0x5c/0x260 drivers/base/module.c:108
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_register_driver_owner+0x20f/0x330 drivers/usb/gadget/udc/core.c:1722
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
raw_ioctl+0x1731/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1306
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0fc7bbdbfb
RSP: 002b:00007f0fc6834f10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0fc7bbdbfb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004
RBP: 00007f0fc6835fe0 R08: 0000000000000000 R09: 00312e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0fc6834fb0 R14: 0000000020000380 R15: 00007f0fc7ea0b88
INFO: task syz.4.5621:30293 blocked for more than 144 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.5621 state:D
stack:27856 pid:30293 tgid:30292 ppid:25302 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
sysfs_remove_file include/linux/sysfs.h:773 [inline]
driver_remove_file drivers/base/driver.c:198 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:194
remove_bind_files drivers/base/bus.c:602 [inline]
bus_remove_driver+0x224/0x2c0 drivers/base/bus.c:740
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1732
raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x3f6/0xb60 fs/file_table.c:431
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2ce0 kernel/exit.c:939
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba26f2dbfb
RSP: 002b:00007fba25ba4f10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007fba26f2dbfb
RDX: 00007fba25ba5fe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007fba25ba5fe0 R08: 0000000000000000 R09: 00342e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 0000000020000100 R15: 00007fba26faa273
INFO: task syz.3.5622:30298 blocked for more than 145 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.5622 state:D stack:27856 pid:30298 tgid:30297 ppid:21507 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
sysfs_remove_file include/linux/sysfs.h:773 [inline]
driver_remove_file drivers/base/driver.c:198 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:194
remove_bind_files drivers/base/bus.c:602 [inline]
bus_remove_driver+0x224/0x2c0 drivers/base/bus.c:740
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1732
raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x3f6/0xb60 fs/file_table.c:431
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2ce0 kernel/exit.c:939
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff1adffdbfb
RSP: 002b:00007ff1acc74f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007ff1adffdbfb
RDX: 00007ff1acc75fe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007ff1acc75fe0 R08: 0000000000000000 R09: 00332e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 0000000020000000 R15: 00007ff1ae07a273
INFO: task syz.0.5623:30300 blocked for more than 145 seconds.
Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.5623 state:D
stack:27856 pid:30300 tgid:30299 ppid:25300 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
sysfs_remove_file include/linux/sysfs.h:773 [inline]
driver_remove_file drivers/base/driver.c:198 [inline]
driver_remove_file+0x4a/0x60 drivers/base/driver.c:194
remove_bind_files drivers/base/bus.c:602 [inline]
bus_remove_driver+0x224/0x2c0 drivers/base/bus.c:740
driver_unregister+0x76/0xb0 drivers/base/driver.c:274
usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1732
raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x3f6/0xb60 fs/file_table.c:431
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2ce0 kernel/exit.c:939
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2632a5dbfb
RSP: 002b:00007f26316cef10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f2632a5dbfb
RDX: 00007f26316cffe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007f26316cffe0 R08: 0000000000000000 R09: 00302e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 00000000200012c0 R15: 00007f2632ada273
Showing all locks held in the system:
7 locks held by kworker/0:1/9:
5 locks held by kworker/1:0/24:
#0: ffff888100080948 ((wq_completion)events
){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1:
ffffc9000019fd80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}
, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}
, at: register_netdev+0x13/0x50 net/core/dev.c:10626
#3: ffffffff895667c8 (gdp_mutex){+.+.}-{3:3}
, at: get_device_parent+0x102/0x4e0 drivers/base/core.c:3252
#4: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778
1 lock held by khungtaskd/30:
#0: ffffffff88ebb140
(rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
3 locks held by kworker/0:2/2499:
2 locks held by getty/2608:
#0:
ffff888109a9e0a0
(&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000432f0 (&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
4 locks held by kworker/0:3/12547:
#0:
ffff888106e82148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900053bfd80
((work_completion)(&hub->events)){+.+.}-{0:0}
, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffff8881097bb190 (
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_activate fs/kernfs/dir.c:1403 [inline]
#3: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x39d/0x520 fs/kernfs/dir.c:819
1 lock held by syz-executor/21507:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
1 lock held by syz-executor/25300:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
1 lock held by syz-executor/25302:
#0: ffff888100abc148 (&root->kernfs_rwsem
){++++}-{3:3}, at: kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
1 lock held by syz-executor/25323:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
1 lock held by syz-executor/25325:
#0: ffff888100abc148
(&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
3 locks held by kworker/u8:4/25328:
#0:
ffff88810cf70948
((wq_completion)ipv6_addrconf){+.+.}-{0:0}
, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900042cfd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2:
ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4736
1 lock held by udevd/26833:
#0: ffff888100abc148 (
&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by udevd/27245:
#0: ffff888100abc148 (
&root->kernfs_rwsem
){++++}-{3:3}, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by udevd/28617:
#0:
ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
8 locks held by kworker/0:9/28983:
1 lock held by syz.2.5619/30287:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.1.5620/30291:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.4.5621/30293:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.3.5622/30298:
#0:
ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by syz.0.5623/30300:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x87/0x130 fs/kernfs/dir.c:1689
1 lock held by dhcpcd-run-hook/30301:
#0: ffff888100abc148 (&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/30302:
#0: ffff888100abc148
(&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/30303:
#0:
ffff888100abc148 (
&root->kernfs_rwsem){++++}-{3:3}
, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/30304:
#0: ffff888100abc148
(&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/30305:
#0: ffff888100abc148 (&root->kernfs_rwsem
){++++}-{3:3}, at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159
1 lock held by syz-executor/30307:
#0:
ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events dvb_usb_read_remote_control
RIP: 0010:__sanitizer_cov_trace_switch+0x59/0x90 kernel/kcov.c:352
Code: 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 4c 89 e2 4c 89 ef 48 83 c3 01 48 8b 4c 24 28 e8 8c fd ff ff 49 39 de 75 e2 <5b> 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 48 83 f8 40 41 bd 07 00 00
RSP: 0018:ffffc90000007120 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff86e7aa80
RDX: ffff888101698000 RSI: 0000000000000007 RDI: 0000000000000001
RBP: ffffffff8810b600 R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000009 R11: 00000000013f64a0 R12: 0000000000000009
R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000009
FS: 0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556f95d4a8 CR3: 0000000008ca0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vsnprintf+0x160/0x1880 lib/vsprintf.c:2759
sprintf+0xcd/0x110 lib/vsprintf.c:3007
print_time kernel/printk/printk.c:1362 [inline]
info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1388
record_print_text+0x141/0x400 kernel/printk/printk.c:1437
printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2978
console_emit_next_record kernel/printk/printk.c:3046 [inline]
console_flush_all+0x6ec/0xc60 kernel/printk/printk.c:3180
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
dev_vprintk_emit drivers/base/core.c:4910 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4921
__dev_printk+0xf5/0x270 drivers/base/core.c:4933
_dev_warn+0xe5/0x120 drivers/base/core.c:4977
usb_rx_callback_intf0+0x11c/0x1a0 drivers/media/rc/imon.c:1768
__usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772
handle_softirqs+0x206/0x8d0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x9a4/0xc60 kernel/printk/printk.c:3181
Code: 00 e8 f0 4a 27 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 4e aa 1f 00 48 85 db 0f 85 55 01 00 00 e8 d0 a7 1f 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 65 2f 78
RSP: 0018:ffffc9000009f940 EFLAGS: 00000293
RAX: ffffffff8939d738 RBX: 0000000000000000 RCX: ffffffff81364ae2
RDX: ffff888101698000 RSI: ffffffff81364af0 RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8939d738
R13: ffffffff8939d6e0 R14: ffffc9000009f9d0 R15: dffffc0000000000
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
dvb_usb_read_remote_control+0x174/0x1c0 drivers/media/usb/dvb-usb/dvb-usb-remote.c:263
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244