[ 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 '10.128.1.99' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.079537][ T37] audit: type=1400 audit(1617228663.460:8): avc: denied { execmem } for pid=8404 comm="syz-executor607" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 76.085418][ T8405] [ 76.102855][ T8405] ==================================== [ 76.108285][ T8405] WARNING: iou-sqp-8404/8405 still has locks held! [ 76.114848][ T8405] 5.12.0-rc5-syzkaller #0 Not tainted [ 76.120253][ T8405] ------------------------------------ [ 76.125711][ T8405] 1 lock held by iou-sqp-8404/8405: [ 76.130987][ T8405] #0: ffff88802374c070 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0x24c/0x13a0 [ 76.140116][ T8405] [ 76.140116][ T8405] stack backtrace: [ 76.146001][ T8405] CPU: 1 PID: 8405 Comm: iou-sqp-8404 Not tainted 5.12.0-rc5-syzkaller #0 [ 76.154479][ T8405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.164518][ T8405] Call Trace: [ 76.167784][ T8405] dump_stack+0x141/0x1d7 [ 76.172130][ T8405] get_signal+0x171a/0x2150 [ 76.176620][ T8405] ? affine_move_task+0x1000/0x1000 [ 76.181828][ T8405] ? _raw_spin_unlock+0x24/0x40 [ 76.186668][ T8405] io_sq_thread+0x8d2/0x13a0 [ 76.191256][ T8405] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 76.197222][ T8405] ? io_submit_sqes+0x63e0/0x63e0 [ 76.202232][ T8405] ? finish_wait+0x260/0x260 [ 76.206808][ T8405] ? find_held_lock+0x2d/0x110 [ 76.211556][ T8405] ? ret_from_fork+0x8/0x30 [ 76.216044][ T8405] ? lock_downgrade+0x6e0/0x6e0 [ 76.220881][ T8405] ? do_raw_spin_lock+0x120/0x2b0 [ 76.225893][ T8405] ? rwlock_bug.part.0+0x90/0