gadgetfs: suspended from state 3
gadgetfs: disconnected
------------[ cut here ]------------
!list_empty(&req->queue)
WARNING: drivers/usb/gadget/udc/dummy_hcd.c:739 at dummy_free_request+0x6f/0x80 drivers/usb/gadget/udc/dummy_hcd.c:739, CPU#1: syz.5.1277/10167
Modules linked in:
CPU: 1 UID: 0 PID: 10167 Comm: syz.5.1277 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:dummy_free_request+0x6f/0x80 drivers/usb/gadget/udc/dummy_hcd.c:739
Code: 75 22 e8 84 95 e0 f9 48 89 df 5b 41 5e e9 b9 90 4c fa e8 74 95 e0 f9 90 0f 0b 90 5b 41 5e e9 98 fc 37 04 cc e8 62 95 e0 f9 90 <0f> 0b 90 eb d8 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900032bf980 EFLAGS: 00010293
RAX: ffffffff87e8bd0e RBX: ffff8880754d2200 RCX: ffff88801fb70000
RDX: 0000000000000000 RSI: ffff8880754d2210 RDI: ffff8880289e4068
RBP: 1ffff1100513c98b R08: ffffffff91e104bf R09: 1ffffffff23c2097
R10: dffffc0000000000 R11: ffffffff87e8bca0 R12: ffff8880289e4068
R13: dffffc0000000000 R14: ffff8880289e4068 R15: ffff8880754d2210
FS:  00007f6944d516c0(0000) GS:ffff888123261000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f18385ed200 CR3: 000000005b760000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gadgetfs_unbind+0x1a9/0x2b0 drivers/usb/gadget/legacy/inode.c:1792
 gadget_unbind_driver+0x1cb/0x410 drivers/usb/gadget/udc/core.c:1725
 device_remove drivers/base/dd.c:617 [inline]
 __device_release_driver drivers/base/dd.c:1357 [inline]
 device_release_driver_internal+0x42b/0x7d0 drivers/base/dd.c:1380
 driver_detach+0x1f3/0x2d0 drivers/base/dd.c:1443
 bus_remove_driver+0x226/0x320 drivers/base/bus.c:851
 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1785
 dev_release+0x83/0x200 drivers/usb/gadget/legacy/inode.c:1328
 __fput+0x408/0xa40 fs/file_table.c:513
 task_work_run+0x1d9/0x260 kernel/task_work.c:233
 get_signal+0x12d0/0x1430 kernel/signal.c:2885
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x32c/0x530 arch/x86/entry/syscall_64.c:107
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x00007f6946b9fb19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6944d51028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 00007f6946e26630 RCX: 00007f6946b9fb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f6946c37b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6946e266c8 R14: 00007f6946e26630 R15: 00007ffefcb41168
 </TASK>