[ 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. Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. Debian GNU/Linux 9 syzkaller ttyS0 executing program syzkaller login: [ 78.368967][ T37] audit: type=1400 audit(1617082036.334:8): avc: denied { execmem } for pid=8381 comm="syz-executor132" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.373261][ T8382] [ 78.392032][ T8382] ==================================== [ 78.397515][ T8382] WARNING: iou-sqp-8381/8382 still has locks held! [ 78.404045][ T8382] 5.12.0-rc5-syzkaller #0 Not tainted [ 78.409410][ T8382] ------------------------------------ [ 78.414960][ T8382] 1 lock held by iou-sqp-8381/8382: [ 78.420159][ T8382] #0: ffff888012bd8c70 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0x24c/0x13a0 [ 78.429239][ T8382] [ 78.429239][ T8382] stack backtrace: [ 78.435223][ T8382] CPU: 0 PID: 8382 Comm: iou-sqp-8381 Not tainted 5.12.0-rc5-syzkaller #0 [ 78.443731][ T8382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.453781][ T8382] Call Trace: [ 78.457156][ T8382] dump_stack+0x141/0x1d7 [ 78.461483][ T8382] get_signal+0x171a/0x2150 [ 78.465968][ T8382] ? affine_move_task+0x1000/0x1000 [ 78.471150][ T8382] ? _raw_spin_unlock+0x24/0x40 [ 78.475985][ T8382] io_sq_thread+0x8d2/0x13a0 [ 78.480557][ T8382] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 78.486362][ T8382] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 78.492326][ T8382] ? io_submit_sqes+0x63e0/0x63e0 [ 78.497331][ T8382] ? finish_wait+0x260/0x260 [ 78.501902][ T8382] ? find_held_lock+0x2d/0x110 [ 78.506645][ T8382] ? ret_from_fork+0x8/0x30 [ 78.511144][ T8382] ? lock_downgrade+0x6e0/0x6e0 [ 78.515990][ T8382] ? do_raw_spin_lock