rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
0-...D } 2678 jiffies s: 21849 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 2548 Comm: udevd Not tainted 6.12.0-rc1-syzkaller-00028-gd73dc7b182be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:format_decode+0x458/0xba0 lib/vsprintf.c:2613
Code: e8 cd 65 6f fa 48 89 da 41 c6 44 24 05 0a 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 <84> c0 0f 85 1f 07 00 00 0f b6 3b 48 c7 c6 c0 be 10 88 48 89 fd e8
RSP: 0000:ffffc900017dea48 EFLAGS: 00000097
RAX: 0000000000000000 RBX: ffffffff8728c724 RCX: ffffc90001001000
RDX: 0000000000000004 RSI: ffffffff86e67f53 RDI: 0000000000000000
RBP: ffffffff8728c723 R08: 0000000000000000 R09: 0000000000000075
R10: 000000000000006c R11: 000000000035ecf0 R12: ffffc900017deb48
R13: 000000000000006c R14: 0000000000000075 R15: 0000000000000005
FS: 00007fd84fef6c80(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200012b8 CR3: 0000000115d24000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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:7582 [inline]
sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7557
show_state_filter+0xee/0x320 kernel/sched/core.c:7627
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+0x43/0xb0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x55bf7c5e2135
Code: 83 3f 00 75 1a 48 89 f7 89 d6 e8 09 ff ff ff 48 85 c0 74 05 48 89 03 eb 06 41 bc f4 ff ff ff 44 89 e0 5a 5b 41 5c c3 8a 57 2f <48> 8d 47 08 f6 c2 04 74 04 48 8b 47 08 83 e2 03 48 8d 0d f4 d4 02
RSP: 002b:00007fff7d7a4988 EFLAGS: 00000217
RAX: 0000000000000002 RBX: 00007fff7d7a4b98 RCX: 000055bf7c60f640
RDX: 000055bf7c60f644 RSI: 0000000000000002 RDI: 000055bfa6ac0bd0
RBP: 000055bfa6ac0bd0 R08: 000000000000000f R09: 57a9816892cf08a9
R10: c9e55d03b1053248 R11: 00007fff7d7a4960 R12: 0000000000001462
R13: 0000000200000001 R14: 0000000000000000 R15: 0000000000000000
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-executor state:S stack:25408 pid:10904 tgid:10904 ppid:2638 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7f656d574213
RSP: 002b:00007ffda9e41fc8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000002aa5 RCX: 00007f656d574213
RDX: 0000000040000000 RSI: 00007ffda9e41fdc RDI: 00000000ffffffff
RBP: 00007ffda9e41fdc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:S stack:23776 pid:10917 tgid:10917 ppid:10904 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
do_nanosleep+0x216/0x510 kernel/time/hrtimer.c:2032
hrtimer_nanosleep+0x146/0x370 kernel/time/hrtimer.c:2080
common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1365
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1388 [inline]
__x64_sys_clock_nanosleep+0x344/0x4a0 kernel/time/posix-timers.c:1388
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: 0033:0x7f656d5b00a3
RSP: 002b:00007ffda9e41dc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000052 RCX: 00007f656d5b00a3
RDX: 00007ffda9e41de0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffda9e41e3c R08: 0000000000020258 R09: 00007f656e276080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000032
R13: 00000000000ad402 R14: 00000000000accff R15: 00007ffda9e41e90
task:kworker/u8:4 state:I
stack:24992 pid:11133 tgid:11133 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
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.0.1423 state:S stack:27616 pid:12215 tgid:12215 ppid:6315 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
do_nanosleep+0x216/0x510 kernel/time/hrtimer.c:2032
hrtimer_nanosleep+0x146/0x370 kernel/time/hrtimer.c:2080
common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1365
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1388 [inline]
__x64_sys_clock_nanosleep+0x344/0x4a0 kernel/time/posix-timers.c:1388
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: 0033:0x7fad044f00e5
RSP: 002b:00007fffa9f14f50 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fad044f00e5
RDX: 00007fffa9f14f90 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000adea2
R13: 00007fffa9f150c0 R14: 0000000000000bea R15: ffffffffffffffff
task:syz.0.1423 state:S stack:28352 pid:12216 tgid:12215 ppid:6315 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
__futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex kernel/futex/syscalls.c:160 [inline]
__x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
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: 0033:0x7fad044bdff9
RSP: 002b:00007fad031370e8 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fad04675f88 RCX: 00007fad044bdff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fad04675f88
RBP: 00007fad04675f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fad04675f8c
R13: 0000000000000000 R14: 00007fffa9f14d70 R15: 00007fffa9f14e58
task:syz.2.1424 state:D
stack:27840 pid:12217 tgid:12217 ppid:10817 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
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:1731
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: 0033:0x7feb4603dff9
RSP: 002b:00007ffe005628d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007ffe00562a00 RCX: 00007feb4603dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007feb461f5f8c
RBP: 00007feb461f5f8c R08: 00007feb46d34080 R09: 00007ffe00562bcf
R10: 00007ffe005629e0 R11: 0000000000000246 R12: 00000000000ad849
R13: 00007ffe005629e0 R14: 0000000000000bea R15: 00000000000acc5f
task:syz.4.1425 state:S stack:27856 pid:12219 tgid:12219 ppid:10917 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
__futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex kernel/futex/syscalls.c:160 [inline]
__x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
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: 0033:0x7f656d57dff9
RSP: 002b:00007ffda9e41bd8 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ffda9e41d00 RCX: 00007f656d57dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f656d735f8c
RBP: 00007f656d735f8c R08: 00007f656e276080 R09: 00007ffda9e41ecf
R10: 00007ffda9e41ce0 R11: 0000000000000246 R12: 00000000000ad54e
R13: 00007ffda9e41ce0 R14: 000000000000015e R15: 00000000000ad3f0
task:syz.4.1425 state:S stack:28496 pid:12220 tgid:12219 ppid:10917 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion_interruptible+0x1f/0x40 kernel/sched/completion.c:216
raw_process_ep_io+0x5d7/0xb90 drivers/usb/gadget/legacy/raw_gadget.c:1121
raw_ioctl_ep_write drivers/usb/gadget/legacy/raw_gadget.c:1152 [inline]
raw_ioctl+0xa4d/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1324
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: 0033:0x7f656d57dbfb
RSP: 002b:00007f656c1f5f70 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000ffffff75 RCX: 00007f656d57dbfb
RDX: 00007f656c1f5ff0 RSI: 0000000040085507 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007f656d860320 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00000000200002c0
R13: 0000000000000000 R14: 00007f656d735f80 R15: 00007ffda9e41a78
task:syz.1.1426 state:D stack:27856 pid:12221 tgid:12221 ppid:6251 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824
__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:1731
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: 0033:0x7f0a6d51dff9
RSP: 002b:00007ffe4c11a038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007ffe4c11a160 RCX: 00007f0a6d51dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0a6d6d5f8c
RBP: 00007f0a6d6d5f8c R08: 00007f0a6d39a080 R09: 00007ffe4c11a32f
R10: 00007ffe4c11a140 R11: 0000000000000246 R12: 00000000000ad991
R13: 00007ffe4c11a140 R14: 0000000000000bea R15: 00000000000acda7
task:syz.3.1427 state:D stack:28800 pid:12226 tgid:12223 ppid:2647 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
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:1731
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
get_signal+0x1ca/0x2770 kernel/signal.c:2690
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: 0033:0x7fc8b74adbfb
RSP: 002b:00007fc8b60dcf60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007fc8b74adbfb
RDX: 00007fc8b60ddff0 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 00007fc8b7520296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc8b7666130 R15: 00007ffdbe7b1068
task:syz.3.1427 state:D stack:28992 pid:12227 tgid:12223 ppid:2647 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
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_register_driver_owner+0x1da/0x2f0 drivers/usb/gadget/udc/core.c:1721
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: 0033:0x7fc8b74adbfb
RSP: 002b:00007fc8b5eb9f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc8b74adbfb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 00007fc8b5ebafe0 R08: 0000000000000000 R09: 00332e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc8b5eb9fb0 R14: 0000000020000040 R15: 00007fc8b77913f0
task:syz.3.1427 state:D stack:28384 pid:12228 tgid:12223 ppid:2647 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6767
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_register_driver_owner+0x1da/0x2f0 drivers/usb/gadget/udc/core.c:1721
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: 0033:0x7fc8b74adbfb
RSP: 002b:00007fc8b5c96f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc8b74adbfb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004
RBP: 00007fc8b5c97fe0 R08: 0000000000000000 R09: 00332e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc8b5c96fb0 R14: 0000000020000400 R15: 00007fc8b7790b88
Showing all locks held in the system:
5 locks held by kworker/0:2/2511:
#0: ffff8881062c3548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc90004f0fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2:
ffff8881097a1190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
ffff8881097a1190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff888129a20190 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
#4: ffff88812a2c4160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88812a2c4160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
4 locks held by udevd/2548:
#0: ffff888118282230 (&dev->event_lock){..-.}-{2:2}, at: input_event drivers/input/input.c:397 [inline]
#0: ffff888118282230 (&dev->event_lock){..-.}-{2:2}, at: input_event+0x70/0xa0 drivers/input/input.c:390
#1: ffffffff88ebb100 (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: input_pass_values+0x8b/0x8e0 drivers/input/input.c:118
#2:
ffffffff89387ad8
(
kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x8a/0x17a0 drivers/tty/vt/keyboard.c:1535
#3: ffffffff88ebb100 (
rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
2 locks held by getty/2606:
#0: ffff88810aaf60a0 (&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/1:3/4915:
4 locks held by udevd/4928:
#0: ffff88811f547790 (&p->lock
){+.+.}-{3:3}
, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
#1:
ffff888105b5a488 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2: ffff888106bcf698
(
kn->active#21){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3:
ffff8881184ec190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1019 [inline]
ffff8881184ec190 (&dev->mutex){....}-{3:3}, at: serial_show+0x26/0xa0 drivers/usb/core/sysfs.c:143
1 lock held by syz.2.1424/12217:
#0: ffffffff88ec6a78 (
rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:297
1 lock held by syz.1.1426/12221:
#0:
ffffffff88ec6a78 (rcu_state.exp_mutex){+.+.}-{3:3}
, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
=============================================