[ 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... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 61.828146][ T2687] ------------[ cut here ]------------ [ 61.833808][ T2687] Unexpected user alpha2: B [ 61.840455][ T2687] WARNING: CPU: 0 PID: 2687 at net/wireless/reg.c:418 restore_regulatory_settings+0x218/0x1360 [ 61.850876][ T2687] Kernel panic - not syncing: panic_on_warn set ... [ 61.857444][ T2687] CPU: 0 PID: 2687 Comm: kworker/0:3 Not tainted 5.7.0-rc2-syzkaller #0 [ 61.865740][ T2687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.875778][ T2687] Workqueue: events_power_efficient crda_timeout_work [ 61.882510][ T2687] Call Trace: [ 61.885778][ T2687] dump_stack+0x188/0x20d [ 61.890145][ T2687] ? restore_regulatory_settings+0x170/0x1360 [ 61.896185][ T2687] panic+0x2e3/0x75c [ 61.900056][ T2687] ? add_taint.cold+0x16/0x16 [ 61.904710][ T2687] ? __probe_kernel_read+0x188/0x1d0 [ 61.909966][ T2687] ? __warn.cold+0x14/0x35 [ 61.914355][ T2687] ? __warn+0xd5/0x1c8 [ 61.918429][ T2687] ? restore_regulatory_settings+0x218/0x1360 [ 61.924468][ T2687] __warn.cold+0x2f/0x35 [ 61.928699][ T2687] ? restore_regulatory_settings+0x218/0x1360 [ 61.934751][ T2687] report_bug+0x27b/0x2f0 [ 61.939065][ T2687] do_error_trap+0x12b/0x220 [ 61.943636][ T2687] ? restore_regulatory_settings+0x218/0x1360 [ 61.949682][ T2687] do_invalid_op+0x32/0x40 [ 61.954073][ T2687] ? restore_regulatory_settings+0x218/0x1360 [ 61.960114][ T2687] invalid_op+0x23/0x30 [ 61.964246][ T2687] RIP: 0010:restore_regulatory_settings+0x218/0x1360 [ 61.970894][ T2687] Code: 03 44 89 ee e8 59 22 1f fa 45 84 ed 0f 85 7a 07 00 00 e8 1b 21 1f fa 41 0f be d4 0f be f3 48 c7 c7 c0 f7 f2 88 e8 20 5c f0 f9 <0f> 0b e8 01 21 1f fa 48 8b 1d 2a 7c 20 03 48 b8 00 00 00 00 00 fc [ 61.990499][ T2687] RSP: 0018:ffffc90007d3fc18 EFLAGS: 00010282 [ 61.996539][ T2687] RAX: 0000000000000000 RBX: 0000000000000042 RCX: 0000000000000000 [ 62.004487][ T2687] RDX: 0000000000000000 RSI: ffffffff815ce161 RDI: fffff52000fa7f75 [ 62.012434][ T2687] RBP: 0000000000000001 R08: ffff8880a0322340 R09: ffffed1015cc66a9 [ 62.020380][ T2687] R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: 0000000000000000 [ 62.028363][ T2687] R13: 0000000000000000 R14: ffff8880a0ee9300 R15: ffff8880ae637180 [ 62.036320][ T2687] ? vprintk_func+0x81/0x17e [ 62.040890][ T2687] ? restore_regulatory_settings+0x218/0x1360 [ 62.046935][ T2687] ? set_regdom+0xba0/0xba0 [ 62.051419][ T2687] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.056943][ T2687] crda_timeout_work+0x1d/0x30 [ 62.061681][ T2687] process_one_work+0x965/0x16a0 [ 62.066598][ T2687] ? lock_release+0x800/0x800 [ 62.071251][ T2687] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.076599][ T2687] ? rwlock_bug.part.0+0x90/0x90 [ 62.081518][ T2687] worker_thread+0x96/0xe20 [ 62.086001][ T2687] ? process_one_work+0x16a0/0x16a0 [ 62.091176][ T2687] kthread+0x388/0x470 [ 62.095230][ T2687] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.100926][ T2687] ret_from_fork+0x24/0x30 [ 62.106562][ T2687] Kernel Offset: disabled [ 62.110949][ T2687] Rebooting in 86400 seconds..