WARNING: CPU: 0 PID: 8970 at drivers/media/common/videobuf2/videobuf2-core.c:1686 __vb2_queue_cancel+0x62f/0x960 drivers/media/common/videobuf2/videobuf2-core.c:1686
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8970 Comm: syz-executor.1 Not tainted 4.19.48 #20
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
 __warn.cold+0x20/0x4a kernel/panic.c:540
kobject: 'loop2' (00000000e03dddf3): kobject_uevent_env
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
kobject: 'loop2' (00000000e03dddf3): fill_kobj_path: path = '/devices/virtual/block/loop2'
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013
RIP: 0010:__vb2_queue_cancel+0x62f/0x960 drivers/media/common/videobuf2/videobuf2-core.c:1686
Code: 03 0f 8e ce 02 00 00 41 8b 5c 24 20 e9 c6 fc ff ff e8 25 57 c8 fc 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 11 57 c8 fc <0f> 0b 49 8d 85 28 02 00 00 48 89 c2 48 89 45 a0 48 b8 00 00 00 00
RSP: 0018:ffff8880a7d8fc40 EFLAGS: 00010293
kobject: 'loop2' (00000000e03dddf3): kobject_uevent_env
RAX: ffff8880866ce180 RBX: 0000000000000001 RCX: ffffffff84a2a7e4
RDX: 0000000000000000 RSI: ffffffff84a2ad0f RDI: 0000000000000005
RBP: ffff8880a7d8fcb0 R08: ffff8880866ce180 R09: ffffed1013e64d5f
R10: ffffed1013e64d5e R11: ffff88809f326af7 R12: ffff88809f326af4
R13: ffff88809f3268b0 R14: ffff88809f326b90 R15: ffff88809f326b88
kobject: 'loop2' (00000000e03dddf3): fill_kobj_path: path = '/devices/virtual/block/loop2'
 vb2_core_streamoff+0x60/0x150 drivers/media/common/videobuf2/videobuf2-core.c:1812
 __vb2_cleanup_fileio+0x78/0x170 drivers/media/common/videobuf2/videobuf2-core.c:2339
 vb2_core_queue_release+0x20/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2066
 vb2_queue_release drivers/media/common/videobuf2/videobuf2-v4l2.c:671 [inline]
 _vb2_fop_release+0x1cf/0x2a0 drivers/media/common/videobuf2/videobuf2-v4l2.c:842
kobject: 'loop2' (00000000e03dddf3): kobject_uevent_env
 vb2_fop_release+0x75/0xc0 drivers/media/common/videobuf2/videobuf2-v4l2.c:856
 vivid_fop_release+0x18e/0x430 drivers/media/platform/vivid/vivid-core.c:474
kobject: 'loop2' (00000000e03dddf3): fill_kobj_path: path = '/devices/virtual/block/loop2'
 v4l2_release+0xf9/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:448
 __fput+0x2dd/0x8b0 fs/file_table.c:278
 ____fput+0x16/0x20 fs/file_table.c:309
 task_work_run+0x145/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:167
kobject: 'loop0' (000000005a28d826): kobject_uevent_env
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412f61
kobject: 'loop0' (000000005a28d826): fill_kobj_path: path = '/devices/virtual/block/loop0'
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc8ca48be0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000412f61
RDX: 0000001b2cf20000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: ffffffff8131d15f R09: 00000000a00e680b
R10: 00007ffc8ca48cc0 R11: 0000000000000293 R12: 0000000000760110
R13: 0000000000015ad9 R14: 0000000000015b06 R15: 000000000075bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..