[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 79.367001][ T37] audit: type=1400 audit(1616997916.007:8): avc: denied { execmem } for pid=8397 comm="syz-executor082" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 79.374409][ T8398] [ 79.390231][ T8398] ==================================== [ 79.395689][ T8398] WARNING: iou-sqp-8397/8398 still has locks held! [ 79.402394][ T8398] 5.12.0-rc4-syzkaller #0 Not tainted [ 79.408125][ T8398] ------------------------------------ [ 79.413579][ T8398] 1 lock held by iou-sqp-8397/8398: [ 79.418828][ T8398] #0: ffff88801e921070 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0x24c/0x13a0 [ 79.428010][ T8398] [ 79.428010][ T8398] stack backtrace: [ 79.433927][ T8398] CPU: 1 PID: 8398 Comm: iou-sqp-8397 Not tainted 5.12.0-rc4-syzkaller #0 [ 79.442432][ T8398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.452512][ T8398] Call Trace: [ 79.455795][ T8398] dump_stack+0x141/0x1d7 [ 79.460164][ T8398] get_signal+0x171a/0x2150 [ 79.464667][ T8398] ? affine_move_task+0x1000/0x1000 [ 79.469872][ T8398] ? _raw_spin_unlock+0x24/0x40 [ 79.474726][ T8398] io_sq_thread+0x8d2/0x13a0 [ 79.479320][ T8398] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 79.485147][ T8398] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 79.491136][ T8398] ? io_submit_sqes+0x63e0/0x63e0 [ 79.496169][ T8398] ? finish_wait+0x260/0x260 [ 79.500764][ T8398] ? find_held_lock+0x2d/0x110 [ 79.505533][ T8398] ? ret_from_fork+0x8/0x30 [ 79.510059][ T8398] ? lock_downgrade+0x6e0/0x6e0 [ 79.514919][ T8398] ? do_raw_