[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.15' (ECDSA) to the list of known hosts. syzkaller login: [ 46.664122][ T8380] [ 46.666474][ T8380] ==================================== [ 46.672280][ T8380] WARNING: iou-sqp-8379/8380 still has locks held! [ 46.678933][ T8380] 5.12.0-rc5-syzkaller #0 Not tainted [ 46.684398][ T8380] ------------------------------------ [ 46.689838][ T8380] 1 lock held by iou-sqp-8379/8380: [ 46.695175][ T8380] #0: ffff88801242b070 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0xfba/0x13b0 [ 46.704458][ T8380] [ 46.704458][ T8380] stack backtrace: [ 46.710339][ T8380] CPU: 1 PID: 8380 Comm: iou-sqp-8379 Not tainted 5.12.0-rc5-syzkaller #0 [ 46.718848][ T8380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.728884][ T8380] Call Trace: [ 46.732205][ T8380] dump_stack+0x176/0x24e [ 46.736549][ T8380] get_signal+0x127/0x2030 [ 46.740943][ T8380] ? io_sq_thread+0x10bf/0x13b0 [ 46.745771][ T8380] ? rcu_read_lock_sched_held+0x41/0xb0 [ 46.751297][ T8380] ? _raw_spin_unlock_irqrestore+0x3f/0xc0 [ 46.757078][ T8380] ? lockdep_hardirqs_on+0x8d/0x130 [ 46.762255][ T8380] io_