sg_write: data in/out 167162/24 bytes for SCSI command 0xff-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly WARNING: CPU: 1 PID: 21479 at drivers/media/common/videobuf2/videobuf2-core.c:1670 __vb2_queue_cancel+0x635/0x970 drivers/media/common/videobuf2/videobuf2-core.c:1670 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21479 Comm: syz-executor.3 Not tainted 4.19.37 #5 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+0x263/0x51d kernel/panic.c:185 kobject: 'kvm' (0000000025f15a27): kobject_uevent_env __warn.cold+0x20/0x54 kernel/panic.c:540 kobject: 'kvm' (0000000025f15a27): fill_kobj_path: path = '/devices/virtual/misc/kvm' 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 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:997 RIP: 0010:__vb2_queue_cancel+0x635/0x970 drivers/media/common/videobuf2/videobuf2-core.c:1670 Code: 03 0f 8e ce 02 00 00 41 8b 5c 24 20 e9 c1 fc ff ff e8 0f e7 c7 fc 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fb e6 c7 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:ffff888055c17c40 EFLAGS: 00010293 RAX: ffff88807adca100 RBX: 0000000000000001 RCX: ffffffff84a35b57 RDX: 0000000000000000 RSI: ffffffff84a36085 RDI: 0000000000000005 RBP: ffff888055c17cb0 R08: ffff88807adca100 R09: ffffed10430c0d67 R10: ffffed10430c0d66 R11: ffff888218606b37 R12: ffff888218606b34 R13: ffff8882186068f0 R14: ffff888218606bd0 R15: ffff888218606bc8 vb2_core_streamoff+0x60/0x140 drivers/media/common/videobuf2/videobuf2-core.c:1796 __vb2_cleanup_fileio+0x78/0x170 drivers/media/common/videobuf2/videobuf2-core.c:2323 vb2_core_queue_release+0x20/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2050 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 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 v4l2_release+0xfb/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:448 __fput+0x2df/0x8b0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/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:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x412b61 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 1a 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:00007ffe13a805b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000412b61 RDX: 0000001b2c620000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 000000006bf79866 R09: 000000006bf7986a R10: 00007ffe13a80690 R11: 0000000000000293 R12: 000000000073c900 R13: 000000000073c900 R14: 0000000000046aaa R15: 000000000073bf0c Kernel Offset: disabled Rebooting in 86400 seconds..