rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
1-...D
} 2641 jiffies s: 87193 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 28120 Comm: udevd Not tainted 6.12.0-rc3-syzkaller-00051-g07b887f8236e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline]
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:246
Code: 8b 05 50 e4 ad 7e a9 00 01 ff 00 74 1d f6 c4 01 74 67 a9 00 00 0f 00 75 60 a9 00 00 f0 00 75 59 8b 82 54 15 00 00 85 c0 74 4f <8b> 82 30 15 00 00 83 f8 03 75 44 48 8b 82 38 15 00 00 8b 92 34 15
RSP: 0018:ffffc900001b7af8 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffffff8728c720 RCX: ffffffff86e68c5f
RDX: ffff88811ccd8000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000005b R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000005b R11: 0000000001e6f7c0 R12: ffffc900001b7c00
R13: ffffffff8728c720 R14: ffffc900001b7c98 R15: ffffc900001b7e60
FS: 00007f9a6dbfec80(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c37f9d4 CR3: 0000000123674000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
format_decode+0x13f/0xba0 lib/vsprintf.c:2537
vsnprintf+0x13d/0x1880 lib/vsprintf.c:2755
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
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x1b7/0x3d0 arch/x86/kernel/dumpstack.c:285
sched_show_task kernel/sched/core.c:7589 [inline]
sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7564
show_state_filter+0xee/0x320 kernel/sched/core.c:7634
k_spec drivers/tty/vt/keyboard.c:667 [inline]
k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656
kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline]
kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541
input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549
input_pass_values+0x777/0x8e0 drivers/input/input.c:126
input_event_dispose drivers/input/input.c:352 [inline]
input_handle_event+0xb30/0x14d0 drivers/input/input.c:369
input_event drivers/input/input.c:398 [inline]
input_event+0x83/0xa0 drivers/input/input.c:390
hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1719
hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540
hid_input_array_field+0x330/0x710 drivers/hid/hid-core.c:1644
hid_process_report drivers/hid/hid-core.c:1694 [inline]
hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2040
__hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110
hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285
__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+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1988
__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:1037 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:getname_flags.part.0+0x42/0x550 fs/namei.c:139
Code: 83 ec 08 e8 c0 a5 9d ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 57 04 00 00 48 8b 3d b6 8b da 06 c0 0c 00 00 e8 54 c3 ee ff 48 85 c0 48 89 c3 0f 84 54 03 00 00
RSP: 0018:ffffc9000169fd18 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81b69052
RDX: 1ffffffff11258a7 RSI: ffffffff81b83960 RDI: ffff888100add140
RBP: 00007ffd5007e338 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8892c538 R14: 0000000000000000 R15: 0000000000000900
getname_flags+0x93/0xf0 include/linux/audit.h:322
vfs_fstatat+0x86/0x160 fs/stat.c:340
__do_sys_newfstatat+0xa2/0x130 fs/stat.c:505
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: 0033:0x7f9a6dd295f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffd5007e298 EFLAGS: 00000206 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000055c9628d6aa0 RCX: 00007f9a6dd295f4
RDX: 00007ffd5007e2a8 RSI: 00007ffd5007e338 RDI: 00000000ffffff9c
RBP: 000055c9628c03bf R08: 000055c9628c03bf R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 0000000000000000
R13: 000055c9628d6b90 R14: 00007ffd5007e338 R15: 000055c957d5da04
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
task:udevd state:S
stack:28176 pid:30039 tgid:30039 ppid:2548 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f9a6dd36457
RSP: 002b:00007ffd50084578 EFLAGS: 00000246
ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a6dd36457
RDX: 0000000000000004 RSI: 00007ffd500845b8 RDI: 0000000000000004
RBP: 000055c9628dfde0 R08: 0000000000000007 R09: c812afffd78bab9a
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055c9628e0d50
R13: 00007ffd500845b8 R14: 00000000ffffffff R15: 000055c9628832c0
task:syz-executor state:S
stack:23776 pid:30167 tgid:30167 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
zap_pid_ns_processes+0x2e3/0x6a0 kernel/pid_namespace.c:222
find_child_reaper kernel/exit.c:612 [inline]
forget_original_parent kernel/exit.c:701 [inline]
exit_notify kernel/exit.c:738 [inline]
do_exit+0x2530/0x2ce0 kernel/exit.c:959
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: 0033:0x7f025cde4213
RSP: 002b:00007ffc4956d1e8 EFLAGS: 00000202
ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 000000000000008b RCX: 00007f025cde4213
RDX: 0000000040000000 RSI: 00007ffc4956d21c RDI: 00000000ffffffff
RBP: 00007ffc4956d21c R08: 00000000000ad5a0 R09: 00007f025dae4080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000036a763 R15: 00007ffc4956d270
task:kworker/u8:0 state:I stack:26048 pid:30169 tgid:30169 ppid:2 flags:0x00004000
Workqueue: 0x0
(events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
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
task:kworker/1:7 state:R running task stack:23136 pid:30843 tgid:30843 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
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_activate fs/kernfs/dir.c:1403 [inline]
kernfs_add_one+0x39d/0x520 fs/kernfs/dir.c:819
__kernfs_create_file+0x295/0x350 fs/kernfs/file.c:1063
sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:307
create_files fs/sysfs/group.c:76 [inline]
internal_create_group+0x565/0xe50 fs/sysfs/group.c:180
internal_create_groups+0x9d/0x150 fs/sysfs/group.c:220
device_add_groups drivers/base/core.c:2822 [inline]
device_add_attrs drivers/base/core.c:2897 [inline]
device_add+0x781/0x1a70 drivers/base/core.c:3629
usb_create_ep_devs+0x160/0x2b0 drivers/usb/core/endpoint.c:169
create_intf_ep_devs.isra.0+0x161/0x200 drivers/usb/core/message.c:1252
usb_set_configuration+0x10ed/0x1c50 drivers/usb/core/message.c:2216
usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
device_add+0x114b/0x1a70 drivers/base/core.c:3675
usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
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
task:kworker/1:10 state:I stack:25464 pid:31322 tgid:31322 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
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
task:syz.2.6545 state:D
stack:27664 pid:31502 tgid:31502 ppid:25072 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
synchronize_rcu_expedited+0x392/0x450 kernel/rcu/tree_exp.h:991
module_remove_driver+0x2e/0x260 drivers/base/module.c:106
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
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:228
exit_task_work include/linux/task_work.h:40 [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: 0033:0x7fb3ef4bdff9
RSP: 002b:00007ffe8501dfd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007ffe8501e100 RCX: 00007fb3ef4bdff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb3ef675f8c
RBP: 00007fb3ef675f8c R08: 00007fb3f01b0080 R09: 00007ffe8501e2cf
R10: 00007ffe8501e0e0 R11: 0000000000000246 R12: 000000000036b19f
R13: 00007ffe8501e0e0 R14: 000000000000015e R15: 000000000036b041
task:syz.0.6546 state:D stack:28352 pid:31505 tgid:31504 ppid:30167 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
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_init_and_add+0x11c/0x190 lib/kobject.c:457
bus_add_driver+0x186/0x690 drivers/base/bus.c:668
driver_register+0x15c/0x4b0 drivers/base/driver.c:246
usb_gadget_register_driver_owner+0x132/0x330 drivers/usb/gadget/udc/core.c:1700
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: 0033:0x7f025cdedbfb
RSP: 002b:00007f025ba64f10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f025cdedbfb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000008
RBP: 00007f025ba65fe0 R08: 0000000000000000 R09: 00302e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f025ba64fb0 R14: 0000000020000180 R15: 00007f025d0d2d28
task:syz.4.6549 state:D
stack:27856 pid:31511 tgid:31510 ppid:25120 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
module_remove_driver+0x2e/0x260 drivers/base/module.c:106
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
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:228
exit_task_work include/linux/task_work.h:40 [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: 0033:0x7eff584adbfb
RSP: 002b:00007eff57124f10 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007eff584adbfb
RDX: 00007eff57125fe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007eff57125fe0 R08: 0000000000000000 R09: 00342e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 0000000020000000 R15: 00007eff5852a273
task:syz.1.6551 state:D stack:27856 pid:31517 tgid:31516 ppid:25092 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
module_remove_driver+0x2e/0x260 drivers/base/module.c:106
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
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:228
exit_task_work include/linux/task_work.h:40 [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: 0033:0x7f4998b2dbfb
RSP: 002b:00007f499779ef10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f4998b2dbfb
RDX: 00007f499779ffe0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007f499779ffe0 R08: 0000000000000000 R09: 00312e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
R13: 0000000800000000 R14: 00000000200000c0 R15: 00007f4998baa273
task:syz.3.6552 state:D stack:27856 pid:31519 tgid:31519 ppid:25117 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
module_remove_driver+0x2e/0x260 drivers/base/module.c:106
bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
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:228
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x24e/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: 0033:0x7f91aeccdff9
RSP: 002b:00007ffcdf21ad18 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f91aee87a80 RCX: 00007f91aeccdff9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f91aee87a80 R08: 0000000000000006 R09: 00007ffcdf21b00f
R10: 00000000003ffd30 R11: 0000000000000246 R12: 000000000036c9fc
R13: 00007ffcdf21ae20 R14: 000000000000015e R15: ffffffffffffffff
task:syz-executor state:D stack:26144 pid:31523 tgid:31523 ppid:2640 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
generic_update_time+0xcf/0xf0 fs/inode.c:2043
inode_update_time fs/inode.c:2056 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2128
file_accessed include/linux/fs.h:2528 [inline]
ext4_file_mmap+0x1c8/0x240 fs/ext4/file.c:797
call_mmap include/linux/fs.h:2172 [inline]
mmap_region+0x111d/0x2900 mm/mmap.c:1440
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7f279f25e033
RSP: 002b:00007ffd12d471a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f279f25e033
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffd12d47210
R13: 00007ffd12d47218 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:D stack:26144 pid:31524 tgid:31524 ppid:2640 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
generic_update_time+0xcf/0xf0 fs/inode.c:2043
inode_update_time fs/inode.c:2056 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2128
file_accessed include/linux/fs.h:2528 [inline]
ext4_file_mmap+0x1c8/0x240 fs/ext4/file.c:797
call_mmap include/linux/fs.h:2172 [inline]
mmap_region+0x111d/0x2900 mm/mmap.c:1440
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7fa9c675e033
RSP: 002b:00007ffc63854f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa9c675e033
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffc63854f90
R13: 00007ffc63854f98 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:D stack:26144 pid:31525 tgid:31525 ppid:2640 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
generic_update_time+0xcf/0xf0 fs/inode.c:2043
inode_update_time fs/inode.c:2056 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2128
file_accessed include/linux/fs.h:2528 [inline]
ext4_file_mmap+0x1c8/0x240 fs/ext4/file.c:797
call_mmap include/linux/fs.h:2172 [inline]
mmap_region+0x111d/0x2900 mm/mmap.c:1440
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7f92bab2e033
RSP: 002b:00007ffde0180058 EFLAGS: 00000246
ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f92bab2e033
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffde01800c0
R13: 00007ffde01800c8 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:D
stack:26144 pid:31526 tgid:31526 ppid:2640 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
generic_update_time+0xcf/0xf0 fs/inode.c:2043
inode_update_time fs/inode.c:2056 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2128
file_accessed include/linux/fs.h:2528 [inline]
ext4_file_mmap+0x1c8/0x240 fs/ext4/file.c:797
call_mmap include/linux/fs.h:2172 [inline]
mmap_region+0x111d/0x2900 mm/mmap.c:1440
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7fe2e493e033
RSP: 002b:00007ffda19798c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe2e493e033
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffda1979930
R13: 00007ffda1979938 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:D stack:25440 pid:31527 tgid:31527 ppid:2640 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
io_schedule+0xbf/0x130 kernel/sched/core.c:7559
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5773
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:5947
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:5984
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2493
generic_update_time+0xcf/0xf0 fs/inode.c:2043
inode_update_time fs/inode.c:2056 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2128
file_accessed include/linux/fs.h:2528 [inline]
ext4_file_mmap+0x1c8/0x240 fs/ext4/file.c:797
call_mmap include/linux/fs.h:2172 [inline]
mmap_region+0x111d/0x2900 mm/mmap.c:1440
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x350 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7faefd98e033
RSP: 002b:00007ffcec92ee48 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faefd98e033
RDX: 0000000000000001 RSI: 0000000000400000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffcec92eeb0
R13: 00007ffcec92eeb8 R14: 0000000000000009 R15: 0000000000000000
Showing all locks held in the system:
2 locks held by getty/2606:
#0:
ffff888108afb0a0 (&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
7 locks held by kworker/0:6/5181:
2 locks held by kworker/1:6/20621:
#0: ffff888100080948 ((wq_completion)events){+.+.}-{0:0}
, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1:
ffffc9001332fd80 (console_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
4 locks held by kworker/0:5/27350:
#0: ffff888105adf548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc9000f6efd80
((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2:
ffff8881097aa190
(