Warning: Permanently added '10.128.0.170' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 70.490017][ T8001] WARNING: CPU: 0 PID: 8001 at drivers/media/common/videobuf2/videobuf2-core.c:1861 __vb2_queue_cancel+0x8bf/0xc80 [ 70.502386][ T8001] Kernel panic - not syncing: panic_on_warn set ... [ 70.509015][ T8001] CPU: 0 PID: 8001 Comm: syz-executor426 Not tainted 5.1.0-rc5-next-20190418 #28 [ 70.518140][ T8001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.528287][ T8001] Call Trace: [ 70.531756][ T8001] dump_stack+0x172/0x1f0 [ 70.536218][ T8001] ? __vb2_queue_cancel+0x8b0/0xc80 [ 70.541803][ T8001] panic+0x2cb/0x72b [ 70.545815][ T8001] ? __warn_printk+0xf3/0xf3 [ 70.550418][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.555647][ T8001] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.562070][ T8001] ? __warn.cold+0x5/0x46 [ 70.566442][ T8001] ? __warn+0xe8/0x1d0 [ 70.570527][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.575734][ T8001] __warn.cold+0x20/0x46 [ 70.579988][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.585214][ T8001] report_bug+0x263/0x2b0 [ 70.589589][ T8001] do_error_trap+0x11b/0x200 [ 70.594189][ T8001] do_invalid_op+0x37/0x50 [ 70.599487][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.604841][ T8001] invalid_op+0x14/0x20 [ 70.609017][ T8001] RIP: 0010:__vb2_queue_cancel+0x8bf/0xc80 [ 70.616389][ T8001] Code: 16 fb ff ff 48 89 df e8 9f b5 ee fc e9 09 fb ff ff e8 95 db b5 fc 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 81 db b5 fc <0f> 0b 48 8b 45 d0 48 05 28 02 00 00 48 89 c2 48 89 45 88 48 b8 00 [ 70.636441][ T8001] RSP: 0000:ffff88808ce4fac8 EFLAGS: 00010293 [ 70.642510][ T8001] RAX: ffff88808b568380 RBX: 0000000000000001 RCX: ffffffff84bae371 [ 70.657429][ T8001] RDX: 0000000000000000 RSI: ffffffff84baeb0f RDI: 0000000000000005 [ 70.665409][ T8001] RBP: ffff88808ce4fb40 R08: ffff88808b568380 R09: ffffed1013c9acc6 [ 70.673385][ T8001] R10: ffffed1013c9acc5 R11: ffff88809e4d662f R12: ffff88809e4d662c [ 70.681365][ T8001] R13: ffff88809e4d66c0 R14: ffff88809e4d63e8 R15: ffff88809e4d13e8 [ 70.689366][ T8001] ? __vb2_queue_cancel+0x121/0xc80 [ 70.694658][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.699984][ T8001] ? __vb2_queue_cancel+0x8bf/0xc80 [ 70.705226][ T8001] ? refcount_dec_and_test_checked+0x1b/0x20 [ 70.711397][ T8001] vb2_core_streamoff+0x60/0x140 [ 70.716347][ T8001] __vb2_cleanup_fileio+0x78/0x170 [ 70.721640][ T8001] vb2_core_queue_release+0x20/0x80 [ 70.726856][ T8001] _vb2_fop_release+0x1cf/0x2a0 [ 70.731722][ T8001] vb2_fop_release+0x75/0xc0 [ 70.736344][ T8001] vivid_fop_release+0x18e/0x430 [ 70.741401][ T8001] ? vidioc_querycap+0x2d0/0x2d0 [ 70.746356][ T8001] v4l2_release+0x224/0x3a0 [ 70.750866][ T8001] ? dev_debug_store+0x110/0x110 [ 70.755857][ T8001] __fput+0x2e5/0x8d0 [ 70.759862][ T8001] ____fput+0x16/0x20 [ 70.763854][ T8001] task_work_run+0x14a/0x1c0 [ 70.768450][ T8001] do_exit+0x90a/0x2fa0 [ 70.772619][ T8001] ? mm_update_next_owner+0x640/0x640 [ 70.778021][ T8001] ? kasan_check_write+0x14/0x20 [ 70.782964][ T8001] ? up_read+0x90/0x1c0 [ 70.787139][ T8001] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 70.792605][ T8001] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 70.798161][ T8001] do_group_exit+0x135/0x370 [ 70.802768][ T8001] __x64_sys_exit_group+0x44/0x50 [ 70.807812][ T8001] do_syscall_64+0x103/0x670 [ 70.812677][ T8001] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.818571][ T8001] RIP: 0033:0x443b78 [ 70.822553][ T8001] Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 [ 70.842159][ T8001] RSP: 002b:00007ffd0750a338 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 70.850846][ T8001] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443b78 [ 70.858826][ T8001] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 70.866807][ T8001] RBP: 00000000004c34f0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 70.874790][ T8001] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.882776][ T8001] R13: 00000000006d5180 R14: 0000000000000000 R15: 0000000000000000 [ 70.891982][ T8001] Kernel Offset: disabled [ 70.896624][ T8001] Rebooting in 86400 seconds..