------------[ cut here ]------------
WARNING: CPU: 0 PID: 19107 at drivers/media/v4l2-core/videobuf2-core.c:1663 __vb2_queue_cancel+0x5a3/0x890 drivers/media/v4l2-core/videobuf2-core.c:1663
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 19107 Comm: syz-executor.5 Not tainted 4.14.141 #37
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x197 lib/dump_stack.c:53
 panic+0x1f2/0x426 kernel/panic.c:182
 __warn.cold+0x2f/0x36 kernel/panic.c:546
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:__vb2_queue_cancel+0x5a3/0x890 drivers/media/v4l2-core/videobuf2-core.c:1663
RSP: 0018:ffff8880638efc10 EFLAGS: 00010297
RAX: ffff8880615b2740 RBX: ffffffff842c50c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88809ed13dee
RBP: ffff8880638efc80 R08: dffffc0000000000 R09: ffffffff88ca6218
R10: ffff8880638efb70 R11: ffff8880615b2740 R12: ffff88809ed15d24
R13: ffff88809ed15df8 R14: ffff88809ed15e00 R15: ffff88809ed15b20
kobject: 'loop4' (ffff8880a4a537a0): kobject_uevent_env
 vb2_core_streamoff+0x52/0x110 drivers/media/v4l2-core/videobuf2-core.c:1788
 __vb2_cleanup_fileio+0x78/0x150 drivers/media/v4l2-core/videobuf2-core.c:2313
 vb2_core_queue_release+0x1d/0x80 drivers/media/v4l2-core/videobuf2-core.c:2040
 vb2_queue_release drivers/media/v4l2-core/videobuf2-v4l2.c:669 [inline]
 _vb2_fop_release+0x1cf/0x2a0 drivers/media/v4l2-core/videobuf2-v4l2.c:840
 vb2_fop_release+0x75/0xc0 drivers/media/v4l2-core/videobuf2-v4l2.c:854
 vivid_fop_release+0x180/0x3f0 drivers/media/platform/vivid/vivid-core.c:486
kobject: 'loop4' (ffff8880a4a537a0): fill_kobj_path: path = '/devices/virtual/block/loop4'
 v4l2_release+0xf9/0x190 drivers/media/v4l2-core/v4l2-dev.c:446
 __fput+0x275/0x7a0 fs/file_table.c:210
 ____fput+0x16/0x20 fs/file_table.c:244
kobject: 'loop0' (ffff8880a48ff5e0): kobject_uevent_env
 task_work_run+0x114/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1da/0x220 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
kobject: 'loop0' (ffff8880a48ff5e0): fill_kobj_path: path = '/devices/virtual/block/loop0'
RIP: 0033:0x413561
RSP: 002b:00007ffd00ddd870 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413561
RDX: 0000001b32020000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00000000560e966f R09: 000000006e783fbf
R10: 00007ffd00ddd950 R11: 0000000000000293 R12: 000000000075c9a0
R13: 000000000075c9a0 R14: 0000000000760610 R15: ffffffffffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..