Warning: Permanently added '10.128.0.2' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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: [ 27.795794] pm_qos_remove_request() called for unknown object [ 27.811768] ------------[ cut here ]------------ [ 27.816560] WARNING: CPU: 1 PID: 7993 at kernel/power/qos.c:534 pm_qos_remove_request.cold+0x11/0x18 [ 27.825830] Kernel panic - not syncing: panic_on_warn set ... [ 27.825830] [ 27.833196] CPU: 1 PID: 7993 Comm: syz-executor103 Not tainted 4.14.274-syzkaller #0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.841074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.850427] Call Trace: [ 27.853016] dump_stack+0x1b2/0x281 [ 27.856648] panic+0x1f9/0x42d [ 27.859837] ? add_taint.cold+0x16/0x16 [ 27.863988] ? pm_qos_remove_request.cold+0x11/0x18 [ 27.869010] ? pm_qos_remove_request.cold+0x11/0x18 [ 27.874022] __warn.cold+0x20/0x44 [ 27.877563] ? ist_end_non_atomic+0x10/0x10 [ 27.881881] ? pm_qos_remove_request.cold+0x11/0x18 [ 27.886894] report_bug+0x208/0x250 [ 27.890522] do_error_trap+0x195/0x2d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.894405] ? math_error+0x2d0/0x2d0 [ 27.898201] ? ___preempt_schedule+0x16/0x18 [ 27.902608] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.907448] invalid_op+0x1b/0x40 [ 27.910899] RIP: 0010:pm_qos_remove_request.cold+0x11/0x18 [ 27.916513] RSP: 0018:ffff888095d6fc58 EFLAGS: 00010282 [ 27.921869] RAX: 0000000000000031 RBX: ffff888235af65c0 RCX: 0000000000000000 [ 27.929133] RDX: 0000000000000000 RSI: ffffffff878bc440 RDI: ffffed1012badf81 [ 27.936396] RBP: ffff8880a55ed6c0 R08: 0000000000000031 R09: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.943655] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11012badf99 [ 27.950918] R13: 0000000000004112 R14: ffff8880a55ed6e8 R15: 0000000000000000 [ 27.958200] ? pm_qos_remove_request.cold+0x11/0x18 [ 27.963215] snd_pcm_common_ioctl+0x12da/0x2810 [ 27.967882] ? lock_downgrade+0x740/0x740 [ 27.972032] ? snd_pcm_status_user+0x120/0x120 [ 27.976611] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 27.981709] ? debug_check_no_obj_freed+0x2c0/0x680 [ 27.986726] snd_pcm_ioctl+0x6d/0xa0 [ 27.990437] ? snd_pcm_common_ioctl+0x2810/0x2810 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.995276] do_vfs_ioctl+0x75a/0xff0 [ 27.999074] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.004521] ? ioctl_preallocate+0x1a0/0x1a0 [ 28.008927] ? kmem_cache_free+0x23a/0x2b0 [ 28.013156] ? putname+0xcd/0x110 [ 28.016604] ? do_sys_open+0x208/0x410 [ 28.020483] ? filp_open+0x60/0x60 [ 28.024016] ? security_file_ioctl+0x83/0xb0 [ 28.028420] SyS_ioctl+0x7f/0xb0 [ 28.031779] ? do_vfs_ioctl+0xff0/0xff0 [ 28.035747] do_syscall_64+0x1d5/0x640 [ 28.039640] entry_SYSCALL_64_after_hwframe+0x46/0xbb executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.044819] RIP: 0033:0x7f160807a7a9 [ 28.048536] RSP: 002b:00007ffc0a71ed28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.056237] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f160807a7a9 [ 28.063760] RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000004 [ 28.071022] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 28.078283] R10: 000000000000ffff R11: 0000000000000246 R12: 0000000000006c9a [ 28.085653] R13: 00007ffc0a71ed3c R14: 00007ffc0a71ed50 R15: 00007ffc0a71ed40 [ 28.093236] Kernel Offset: disabled [ 28.096886] Rebooting in 86400 seconds..