[ 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 '10.128.0.237' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 78.000017][ T37] audit: type=1400 audit(1616999384.681:8): avc: denied { execmem } for pid=8386 comm="syz-executor516" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.007388][ T8387] [ 78.022990][ T8387] ==================================== [ 78.028423][ T8387] WARNING: iou-sqp-8386/8387 still has locks held! [ 78.035091][ T8387] 5.12.0-rc4-syzkaller #0 Not tainted [ 78.040636][ T8387] ------------------------------------ [ 78.046085][ T8387] 1 lock held by iou-sqp-8386/8387: [ 78.051302][ T8387] #0: ffff88801e1d2470 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0x24c/0x13a0 [ 78.060431][ T8387] [ 78.060431][ T8387] stack backtrace: [ 78.066308][ T8387] CPU: 1 PID: 8387 Comm: iou-sqp-8386 Not tainted 5.12.0-rc4-syzkaller #0 [ 78.074788][ T8387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.084829][ T8387] Call Trace: [ 78.088093][ T8387] dump_stack+0x141/0x1d7 [ 78.092421][ T8387] get_signal+0x171a/0x2150 [ 78.096912][ T8387] ? affine_move_task+0x1000/0x1000 [ 78.102096][ T8387] ? _raw_spin_unlock+0x24/0x40 [ 78.106933][ T8387] io_sq_thread+0x8d2/0x13a0 [ 78.111509][ T8387] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 78.117297][ T8387] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 78.123273][ T8387] ? io_submit_sqes+0x63e0/0x63e0 [ 78.128315][ T8387] ? finish_wait+0x260/0x260 [ 78.132893][ T8387] ? find_held_lock+0x2d/0x110 [ 78.137645][ T8387] ? ret_from_fork+0x8/0x30 [ 78.142147][ T8387] ? lock_downgrade+0x6e0/0x6e0 [ 78.146985][ T8387] ? do_raw_spin_lock+0