usb usb4: usbfs: process 32149 (syz-executor.1) did not claim interface 0 before use
usb usb4: usbfs: process 32154 (syz-executor.3) did not claim interface 0 before use
INFO: task syz-executor.3:32124 blocked for more than 140 seconds.
      Not tainted 4.19.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28256 32124   8100 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_timeout+0x4cf/0xfe0 kernel/time/timer.c:1818
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
 usb_start_wait_urb+0x14b/0x4c0 drivers/usb/core/message.c:62
 usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:253
 proc_bulk+0x3de/0x860 drivers/usb/core/devio.c:1206
 usbdev_do_ioctl+0x696/0x3030 drivers/usb/core/devio.c:2430
 usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2580
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45deb9
Code: Bad RIP value.
RSP: 002b:00007f813d7dec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000001af40 RCX: 000000000045deb9
RDX: 0000000020000140 RSI: 00000000c0185502 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd367fd17f R14: 00007f813d7df9c0 R15: 000000000118bf2c

Showing all locks held in the system:
1 lock held by khungtaskd/1566:
 #0: 00000000765cedb1 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7793:
 #0: 00000000461e3de7 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767

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

NMI backtrace for cpu 1
CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x991/0xe60 kernel/hung_task.c:287
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 4.19.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:97
Code: 48 c7 c7 80 ff 6d 88 4c 89 25 ec 39 bf 0b 41 bc f4 ff ff ff e8 a0 f9 ea ff 48 c7 05 d6 39 bf 0b 00 00 00 00 e9 39 ec ff ff 90 <48> 8b 34 24 65 48 8b 04 25 80 df 01 00 65 8b 15 0c 0f 9d 7e 81 e2
RSP: 0018:ffff8880b5a77bf0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff816a066d
RDX: 0000000000000000 RSI: ffff8880b5a62280 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000293
R13: 1ffff11016b4ef8e R14: ffff8880ba022b00 R15: 00000000ffffffff
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2fd9bc000 CR3: 00000000a18dc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 trace_hardirqs_off+0x26/0x200 kernel/trace/trace_preemptirq.c:37
 del_timer_sync+0x86/0x270 kernel/time/timer.c:1294
 schedule_timeout+0x4d7/0xfe0 kernel/time/timer.c:1819
 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415