Warning: Permanently added '10.128.0.97' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 39.809877] WARNING: CPU: 1 PID: 5722 at drivers/media/common/videobuf2/videobuf2-core.c:1667 __vb2_queue_cancel+0x89d/0xca0 [ 39.821378] Kernel panic - not syncing: panic_on_warn set ... [ 39.821378] [ 39.828761] CPU: 1 PID: 5722 Comm: syz-executor576 Not tainted 4.19.0+ #309 [ 39.835861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.845205] Call Trace: [ 39.847808] dump_stack+0x244/0x39d [ 39.851444] ? dump_stack_print_info.cold.1+0x20/0x20 [ 39.856666] panic+0x238/0x4e7 [ 39.859875] ? add_taint.cold.5+0x16/0x16 [ 39.864029] ? __warn.cold.8+0x5/0x4a [ 39.867828] ? __warn+0xe8/0x1d0 [ 39.871219] ? __vb2_queue_cancel+0x89d/0xca0 [ 39.875715] __warn.cold.8+0x20/0x4a [ 39.879430] ? rcu_softirq_qs+0x20/0x20 [ 39.883412] ? __vb2_queue_cancel+0x89d/0xca0 [ 39.887927] report_bug+0x254/0x2d0 [ 39.891565] do_error_trap+0x11b/0x200 [ 39.895456] do_invalid_op+0x36/0x40 [ 39.899182] ? __vb2_queue_cancel+0x89d/0xca0 [ 39.903681] invalid_op+0x14/0x20 [ 39.907130] RIP: 0010:__vb2_queue_cancel+0x89d/0xca0 [ 39.912249] Code: 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 88 03 00 00 48 81 c4 b0 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 83 9f 34 fc <0f> 0b 48 8b 85 70 fe ff ff 48 05 28 02 00 00 48 89 85 40 fe ff ff [ 39.931153] RSP: 0018:ffff8801d5a9f878 EFLAGS: 00010293 [ 39.936556] RAX: ffff8801d482c680 RBX: ffff8801d5a9fa28 RCX: ffffffff854abdf8 [ 39.943859] RDX: 0000000000000000 RSI: ffffffff854ac47d RDI: 0000000000000005 [ 39.951126] RBP: ffff8801d5a9fa50 R08: ffff8801d482c680 R09: ffffed003977abbf [ 39.958382] R10: ffffed003977abbf R11: ffff8801cbbd5dff R12: ffff8801cbbd5dfc [ 39.965635] R13: dffffc0000000000 R14: 0000000000000002 R15: ffff8801cbbd0d08 [ 39.972904] ? __vb2_queue_cancel+0x218/0xca0 [ 39.977381] ? __vb2_queue_cancel+0x89d/0xca0 [ 39.981862] ? __vb2_queue_cancel+0x89d/0xca0 [ 39.986352] ? lock_downgrade+0x900/0x900 [ 39.990491] ? debug_mutex_lock_common+0x130/0x130 [ 39.995404] ? __vb2_dqbuf.part.5+0x260/0x260 [ 39.999885] ? kasan_check_read+0x11/0x20 [ 40.004016] ? do_raw_spin_unlock+0xa7/0x330 [ 40.008411] ? do_raw_spin_trylock+0x270/0x270 [ 40.012978] ? kasan_check_write+0x14/0x20 [ 40.017198] ? wake_up_q+0xb3/0x100 [ 40.020811] ? __mutex_unlock_slowpath+0x43c/0x8c0 [ 40.025773] ? kasan_check_read+0x11/0x20 [ 40.029923] ? wait_for_completion+0x8a0/0x8a0 [ 40.034532] ? trace_hardirqs_off_caller+0x310/0x310 [ 40.039632] ? vfs_lock_file+0xe0/0xe0 [ 40.043548] ? zap_class+0x640/0x640 [ 40.047257] vb2_core_streamoff+0x60/0x140 [ 40.051479] __vb2_cleanup_fileio+0x73/0x160 [ 40.055873] vb2_core_queue_release+0x1e/0x80 [ 40.060361] _vb2_fop_release+0x1d2/0x2b0 [ 40.064499] vb2_fop_release+0x77/0xc0 [ 40.068420] vivid_fop_release+0x18e/0x440 [ 40.072687] ? vivid_remove+0x460/0x460 [ 40.076656] ? dev_debug_store+0x140/0x140 [ 40.080878] v4l2_release+0xfb/0x1a0 [ 40.084582] __fput+0x385/0xa30 [ 40.087899] ? get_max_files+0x20/0x20 [ 40.092176] ? trace_hardirqs_on+0xbd/0x310 [ 40.096500] ? kasan_check_read+0x11/0x20 [ 40.100643] ? task_work_run+0x1af/0x2a0 [ 40.104699] ? trace_hardirqs_off_caller+0x310/0x310 [ 40.109806] ? filp_close+0x1cd/0x250 [ 40.113599] ____fput+0x15/0x20 [ 40.116870] task_work_run+0x1e8/0x2a0 [ 40.120749] ? task_work_cancel+0x240/0x240 [ 40.125064] ? copy_fd_bitmaps+0x210/0x210 [ 40.129293] ? do_syscall_64+0x9a/0x820 [ 40.133268] exit_to_usermode_loop+0x318/0x380 [ 40.137850] ? __bpf_trace_sys_exit+0x30/0x30 [ 40.142347] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.147885] do_syscall_64+0x6be/0x820 [ 40.151764] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.157130] ? syscall_return_slowpath+0x5e0/0x5e0 [ 40.162051] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.166890] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.171904] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.176912] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.181925] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.186761] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.191937] RIP: 0033:0x405591 [ 40.195129] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 94 17 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 40.214022] RSP: 002b:00007ffd801e3640 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 40.221715] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000405591 [ 40.228975] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000003 [ 40.236228] RBP: 00000000000003e8 R08: 00000000000003e8 R09: 0000000000000000 [ 40.243484] R10: 00007ffd801e3650 R11: 0000000000000293 R12: 00000000006dbc2c [ 40.250740] R13: 000000000000002d R14: 0000000000000003 R15: 00000000006dbc20 [ 40.258974] Kernel Offset: disabled [ 40.262638] Rebooting in 86400 seconds..