Unexpected user alpha2: A ------------[ cut here ]------------ WARNING: CPU: 0 PID: 24 at net/wireless/reg.c:414 is_user_regdom_saved net/wireless/reg.c:414 [inline] WARNING: CPU: 0 PID: 24 at net/wireless/reg.c:414 restore_alpha2 net/wireless/reg.c:2559 [inline] WARNING: CPU: 0 PID: 24 at net/wireless/reg.c:414 restore_regulatory_settings.cold+0x40/0x47 net/wireless/reg.c:2651 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.165-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient crda_timeout_work Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x2f/0x2f kernel/panic.c:547 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:is_user_regdom_saved net/wireless/reg.c:414 [inline] RIP: 0010:restore_alpha2 net/wireless/reg.c:2559 [inline] RIP: 0010:restore_regulatory_settings.cold+0x40/0x47 net/wireless/reg.c:2651 RSP: 0018:ffff8880a9edfc70 EFLAGS: 00010286 RAX: 000000000000001a RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86cc2fe0 RDI: ffffed10153dbf84 RBP: ffff8880a9edfd28 R08: 000000000000001a R09: ffff8880a9ec4f30 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000041 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880aec2acc0 crda_timeout_work+0x1f/0x30 net/wireless/reg.c:541 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Kernel Offset: disabled Rebooting in 86400 seconds..