syzbot


INFO: task hung in usb_udc_uevent

Status: auto-obsoleted due to no activity on 2024/11/14 02:51
Subsystems: usb
[Documentation on labels]
First crash: 176d, last: 176d

Sample crash report:
INFO: task udevd:2548 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:23984 pid:2548  tgid:2548  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xcda/0x2f80 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 usb_udc_uevent drivers/usb/gadget/udc/core.c:1880 [inline]
 usb_udc_uevent+0x96/0x1b0 drivers/usb/gadget/udc/core.c:1869
 dev_uevent+0x306/0x8f0 drivers/base/core.c:2693
 uevent_show+0x1c7/0x390 drivers/base/core.c:2749
 dev_attr_show+0x53/0xe0 drivers/base/core.c:2438
 sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
 seq_read_iter+0x4fa/0x12c0 fs/seq_file.c:230
 kernfs_fop_read_iter+0x41a/0x590 fs/kernfs/file.c:279
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x869/0xbd0 fs/read_write.c:476
 ksys_read+0x12f/0x260 fs/read_write.c:619
 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: 0033:0x7f336b95db6a
RSP: 002b:00007fff4e223ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055ba31e6aea0 RCX: 00007f336b95db6a
RDX: 0000000000001000 RSI: 000055ba31e655c0 RDI: 000000000000000c
RBP: 000055ba31e6aea0 R08: 000000000000000c R09: 0000000000000040
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007fff4e2243a8 R15: 000000000000000a
 </TASK>
INFO: task syz.0.4138:21263 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.4138      state:D stack:28912 pid:21263 tgid:21262 ppid:17335  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xcda/0x2f80 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 usb_gadget_register_driver_owner+0x123/0x2f0 drivers/usb/gadget/udc/core.c:1706
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
 raw_ioctl+0x1737/0x2b90 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+0x193/0x220 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: 0033:0x7f334c3195bb
RSP: 002b:00007f334af94f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f334c3195bb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000009
RBP: 00007f334af95fe0 R08: 0000000000000000 R09: 00302e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f334af94fb0 R14: 0000000020000000 R15: 00007f334c5e2d28
 </TASK>
INFO: task syz.1.4140:21267 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.4140      state:D stack:29088 pid:21267 tgid:21266 ppid:16894  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xcda/0x2f80 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 usb_gadget_register_driver_owner+0x123/0x2f0 drivers/usb/gadget/udc/core.c:1706
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
 raw_ioctl+0x1737/0x2b90 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+0x193/0x220 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: 0033:0x7ff78fff95bb
RSP: 002b:00007ff78ec6ef10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff78fff95bb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000007
RBP: 00007ff78ec6ffe0 R08: 0000000000000000 R09: 00312e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff78ec6efb0 R14: 0000000020000a00 R15: 00007ff7902c24c0
 </TASK>
INFO: task syz.3.4144:21278 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.4144      state:D stack:28752 pid:21278 tgid:21278 ppid:15334  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xcda/0x2f80 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 usb_gadget_disconnect_locked+0x19a/0x4e0 drivers/usb/gadget/udc/core.c:781
 gadget_unbind_driver+0xd7/0x4e0 drivers/usb/gadget/udc/core.c:1666
 device_remove+0xc8/0x170 drivers/base/dd.c:566
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1295
 driver_detach+0xd8/0x1b0 drivers/base/dd.c:1358
 bus_remove_driver+0x13b/0x2c0 drivers/base/bus.c:742
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1731
 raw_release+0x1a9/0x2f0 drivers/usb/gadget/legacy/raw_gadget.c:462
 __fput+0x408/0xbb0 fs/file_table.c:422
 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: 0033:0x7f70234699b9
RSP: 002b:00007fffaef86718 EFLAGS: 00000246
 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000001c5d7b RCX: 00007f70234699b9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fffaef867f0 R08: 0000000000000001 R09: 00007fffaef869ff
R10: 00007f70232f0000 R11: 0000000000000246 R12: 0000000000000032
R13: 00007fffaef86810 R14: 00007fffaef86830 R15: ffffffffffffffff
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/0:0/8:
5 locks held by kworker/1:0/24:
 #0: 
ffff88810528f548
 (
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: 
ffffc9000019fd80
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
 #2: 
ffff888108fc4190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849
 #3: 
ffff888108fc7510
 (
&port_dev->status_lock
){+.+.}-{3:3}
, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline]
, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
, at: port_event drivers/usb/core/hub.c:5821 [inline]
, at: hub_event+0x28b8/0x4f50 drivers/usb/core/hub.c:5903
 #4: 
ffff88810e6f6868
 (
hcd->address0_mutex
){+.+.}-{3:3}
, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline]
, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
, at: port_event drivers/usb/core/hub.c:5821 [inline]
, at: hub_event+0x28de/0x4f50 drivers/usb/core/hub.c:5903
1 lock held by khungtaskd/30:
 #0: 
ffffffff88cb7360
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
2 locks held by kworker/u8:8/1075:
 #0: 
ffff888100089148
 (
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: 
ffffc90001cafd80
 (
(work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
2 locks held by kworker/0:2/2099:
2 locks held by getty/2606:
 #0: 
ffff88810636f0a0
 (
&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+0xfc8/0x1490 drivers/tty/n_tty.c:2211
5 locks held by kworker/0:5/7489:
2 locks held by kworker/1:3/13802:
2 locks held by kworker/u8:2/16169:
 #0: 
ffff888100089148
 (
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: 
ffffc90011da7d80
 (
(work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
1 lock held by syz.0.4138/21263:
2 locks held by kworker/u8:1/21302:
 #0: 
ffff888100089148
 (
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: 
ffffc9001011fd80
 (
(work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
2 locks held by kworker/u8:3/21337:
1 lock held by modprobe/23823:
1 lock held by modprobe/23824:

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
 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+0xf4e/0x1280 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
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
cdc_wdm 2-1:1.0: Stall on int endpoint
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 23822 Comm: modprobe Not tainted 6.11.0-rc3-syzkaller-00046-g82313624b2ae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:io_serial_in+0x87/0xb0 drivers/tty/serial/8250/8250_port.c:407
Code: c4 ba fe 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1a 66 03 5d 40 89 da ec <5b> 0f b6 c0 5d 41 5c c3 cc cc cc cc e8 08 c3 0f ff eb a2 e8 91 c3
RSP: 0018:ffffc900000072c8 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: ffffffff82988cb0 RDI: ffffffff8dfc8700
RBP: ffffffff8dfc86c0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000020 R14: fffffbfff1bf9132 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc470c4440 CR3: 0000000008aa0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 serial_in drivers/tty/serial/8250/8250.h:137 [inline]
 serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline]
 wait_for_lsr+0xda/0x180 drivers/tty/serial/8250/8250_port.c:2068
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline]
 serial8250_console_write+0xca3/0x1090 drivers/tty/serial/8250/8250_port.c:3393
 console_emit_next_record kernel/printk/printk.c:2983 [inline]
 console_flush_all+0x53c/0xd70 kernel/printk/printk.c:3049
 console_unlock+0xae/0x290 kernel/printk/printk.c:3118
 vprintk_emit kernel/printk/printk.c:2348 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
 dev_vprintk_emit drivers/base/core.c:4912 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4923
 __dev_printk+0xf5/0x270 drivers/base/core.c:4935
 _dev_err+0xe5/0x120 drivers/base/core.c:4978
 wdm_int_callback+0x3dd/0xb40 drivers/usb/class/cdc-wdm.c:266
 __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:1987
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:sched_balance_update_blocked_averages+0xe04/0x1b60 kernel/sched/fair.c:9501
Code: ff e8 30 66 07 00 48 8b bc 24 80 00 00 00 e8 43 fe fd ff 48 83 7c 24 28 00 0f 85 e0 02 00 00 9c 58 f6 c4 02 0f 85 e0 04 00 00 <48> 81 c4 90 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90000007e40 EFLAGS: 00000246
RAX: 0000000000000012 RBX: 0000000000000000 RCX: 1ffffffff1ab11f7
RDX: 0000000000000000 RSI: ffffffff8727e780 RDI: ffffffff87465140
RBP: ffffc90000007ef8 R08: 0000000000000001 R09: fffffbfff1aad1de
R10: ffffffff8d568ef7 R11: 1ffff1102357cfb3 R12: 0000000000000000
R13: 0000000000000001 R14: ffff8881f623e1d8 R15: ffff8881f623d718
 sched_balance_softirq+0x122/0x1a0 kernel/sched/fair.c:12502
 handle_softirqs+0x209/0x8e0 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:1043 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lru_add_drain_cpu+0x3df/0x860 mm/swap.c:683
Code: 30 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 0f b6 04 02 84 c0 74 06 0f 8e f5 02 00 00 0f b6 9b 30 03 00 00 <31> ff 89 de e8 28 37 cb ff 84 db 0f 85 7b 01 00 00 e8 3b 35 cb ff
RSP: 0018:ffffc9000fa1f898 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81881b54
RDX: 1ffff1103ec47012 RSI: ffffffff81881b62 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881f6238090
R13: ffff8881f6237f90 R14: ffff888120cb3a00 R15: ffffffff888e7a20
 lru_add_drain+0x109/0x440 mm/swap.c:775
 free_pages_and_swap_cache+0xba/0x510 mm/swap_state.c:320
 __tlb_batch_free_encoded_pages+0xf9/0x290 mm/mmu_gather.c:136
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu mm/mmu_gather.c:373 [inline]
 tlb_finish_mmu+0x168/0x7b0 mm/mmu_gather.c:465
 exit_mmap+0x3d1/0xb20 mm/mmap.c:3425
 __mmput kernel/fork.c:1345 [inline]
 mmput+0xdb/0x3e0 kernel/fork.c:1367
 exit_mm kernel/exit.c:571 [inline]
 do_exit+0x9bf/0x2b30 kernel/exit.c:869
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
 __do_sys_exit_group kernel/exit.c:1042 [inline]
 __se_sys_exit_group kernel/exit.c:1040 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1040
 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7fdc47182a90
Code: Unable to access opcode bytes at 0x7fdc47182a66.
RSP: 002b:00007ffc709e38a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fdc47273860 RCX: 00007fdc47182a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007fdc47273860 R08: 0000000000000001 R09: 2e212ccf25995d93
R10: 00007ffc709e3760 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fdc47277658 R15: 0000000000000001
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/16 02:50 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 82313624b2ae e4bacdaf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: task hung in usb_udc_uevent
* Struck through repros no longer work on HEAD.