[ OK ] Started Update UTMP about System Runlevel Changes. [ 48.412915][ T4812] systemd-udevd (4812) used greatest stack depth: 22608 bytes left [ 48.443868][ T4794] systemd-udevd (4794) used greatest stack depth: 22272 bytes left Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.32' (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 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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: [ 64.623930][ T5] ------------[ cut here ]------------ [ 64.629651][ T5] Unexpected user alpha2: B [ 64.636717][ T5] WARNING: CPU: 0 PID: 5 at net/wireless/reg.c:418 restore_regulatory_settings+0x218/0x1360 [ 64.646794][ T5] Kernel panic - not syncing: panic_on_warn set ... [ 64.653445][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0 [ 64.662732][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program [ 64.672802][ T5] Workqueue: events_power_efficient crda_timeout_work [ 64.679562][ T5] Call Trace: [ 64.682860][ T5] dump_stack+0x18f/0x20d [ 64.687207][ T5] ? restore_regulatory_settings+0x130/0x1360 [ 64.693712][ T5] panic+0x2e3/0x75c [ 64.697793][ T5] ? __warn_printk+0xf3/0xf3 [ 64.702415][ T5] ? __probe_kernel_read+0x188/0x1d0 [ 64.707696][ T5] ? __warn.cold+0x14/0x3a [ 64.712245][ T5] ? __warn+0xd6/0x1b2 [ 64.718549][ T5] ? restore_regulatory_settings+0x218/0x1360 [ 64.724885][ T5] __warn.cold+0x2f/0x3a [ 64.729143][ T5] ? restore_regulatory_settings+0x218/0x1360 [ 64.735215][ T5] report_bug+0x27b/0x2f0 [ 64.739562][ T5] do_error_trap+0x153/0x2b0 [ 64.744247][ T5] ? restore_regulatory_settings+0x218/0x1360 [ 64.750322][ T5] exc_invalid_op+0x37/0x50 [ 64.754833][ T5] ? restore_regulatory_settings+0x218/0x1360 [ 64.760907][ T5] asm_exc_invalid_op+0x12/0x20 [ 64.765896][ T5] RIP: 0010:restore_regulatory_settings+0x218/0x1360 [ 64.772554][ T5] Code: 03 44 89 ee e8 39 6b 0f fa 45 84 ed 0f 85 7a 07 00 00 e8 cb 69 0f fa 41 0f be d4 0f be f3 48 c7 c7 20 a3 15 89 e8 4a 8b e0 f9 <0f> 0b e8 b1 69 0f fa 48 8b 1d ca b4 34 03 48 b8 00 00 00 00 00 fc [ 64.792155][ T5] RSP: 0018:ffffc90000cbfc18 EFLAGS: 00010282 [ 64.798311][ T5] RAX: 0000000000000000 RBX: 0000000000000042 RCX: 0000000000000000 [ 64.806276][ T5] RDX: 0000000000000000 RSI: ffffffff815c9bf7 RDI: fffff52000197f75 [ 64.814250][ T5] RBP: 0000000000000001 R08: ffff8880a959a140 R09: ffffed1015cc671d [ 64.822226][ T5] R10: ffff8880ae6338e7 R11: ffffed1015cc671c R12: 0000000000000000 [ 64.830203][ T5] R13: 0000000000000000 R14: ffff8880a9523100 R15: ffff8880ae637600 [ 64.838184][ T5] ? vprintk_func+0x97/0x1a6 [ 64.842803][ T5] ? restore_regulatory_settings+0x218/0x1360 [ 64.848930][ T5] ? set_regdom+0xba0/0xba0 [ 64.853436][ T5] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.859006][ T5] crda_timeout_work+0x1d/0x30 [ 64.863775][ T5] process_one_work+0x965/0x1690 [ 64.868727][ T5] ? lock_release+0x800/0x800 [ 64.873410][ T5] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.878795][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 64.883744][ T5] worker_thread+0x96/0xe20 [ 64.888250][ T5] ? process_one_work+0x1690/0x1690 [ 64.893444][ T5] kthread+0x3b5/0x4a0 [ 64.897512][ T5] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.903306][ T5] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.909109][ T5] ret_from_fork+0x1f/0x30 [ 64.915186][ T5] Kernel Offset: disabled [ 64.919628][ T5] Rebooting in 86400 seconds..