Starting Load/Save RF Kill Switch Status...

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   60.107019][ T8509] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor021/8509
[   60.116474][ T8509] caller is lockdep_hardirqs_on_prepare+0x5e/0x410
[   60.122999][ T8509] CPU: 0 PID: 8509 Comm: syz-executor021 Not tainted 5.9.0-syzkaller #0
[   60.132308][ T8509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   60.142338][ T8509] Call Trace:
[   60.145612][ T8509]  dump_stack+0x107/0x163
[   60.157918][ T8509]  check_preemption_disabled+0x123/0x130
[   60.163533][ T8509]  lockdep_hardirqs_on_prepare+0x5e/0x410
[   60.169245][ T8509]  trace_hardirqs_on+0x5b/0x1c0
[   60.174087][ T8509]  __bad_area_nosemaphore+0xc6/0x400
[   60.179368][ T8509]  do_user_addr_fault+0x7d7/0xb40
[   60.184387][ T8509]  exc_page_fault+0x9e/0x180
[   60.188955][ T8509]  ? asm_exc_page_fault+0x8/0x30
[   60.193879][ T8509]  asm_exc_page_fault+0x1e/0x30
[   60.198704][ T8509] RIP: 0033:0x4242d0
[   60.202576][ T8509] Code: 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 74 48 83 e0 f0 <66> 0f 74 00 66 0f 74 48 10 66 0f 74 50 20 66 0f 74 58 30 66 0f d7
[   60.222157][ T8509] RSP: 002b:00007ffcb98795d8 EFLAGS: 00010246
[   60.228200][ T8509] RAX: 0000000000000000 RBX: 00007ffcb9879600 RCX: 0000000000000000
[   60.236149][ T8509] RDX: 0000000000000010 RSI: 000000000000000f RDI: 0000000000000000
[   60.244096][ T8509] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   60.252058][ T8509] R10: 0000000000000000 R11: 000000000000000f R12: 0000000000401e50
[   60.260009][ T8509] R13: 0000000000401ee0 R14: 0000000000000000 R15: 0000000000000000
[   60.268662][ T8509] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor021/8509
[   60.278071][ T8509] caller is lockdep_hardirqs_on+0x38/0x110
[   60.283856][ T8509] CPU: 0 PID: 8509 Comm: syz-executor021 Not tainted 5.9.0-syzkaller #0
[   60.292169][ T8509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   60.302208][ T8509] Call Trace:
[   60.305477][ T8509]  dump_stack+0x107/0x163
[   60.309884][ T8509]  check_preemption_disabled+0x123/0x130
[   60.315503][ T8509]  ? __bad_area_nosemaphore+0xc6/0x400
[   60.320937][ T8509]  lockdep_hardirqs_on+0x38/0x110
[   60.325941][ T8509]  __bad_area_nosemaphore+0xc6/0x400
[   60.331204][ T8509]  do_user_addr_fault+0x7d7/0xb40
[   60.336210][ T8509]  exc_page_fault+0x9e/0x180
[   60.340788][ T8509]  ? asm_exc_page_fault+0x8/0x30
[   60.345701][ T8509]  asm_exc_page_fault+0x1e/0x30
[   60.350544][ T8509] RIP: 0033:0x4242d0
[   60.354418][ T8509] Code: 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 74 48 83 e0 f0 <66> 0f 74 00 66 0f 74 48 10 66 0f 74 50 20 66 0f 74 58 30 66 0f d7
[   60.373997][ T8509] RSP: 002b:00007ffcb98795d8 EFLAGS: 00010246
[   60.380053][ T8509] RAX: 0000000000000000 RBX: 00007ffcb9879600 RCX: 0000000000000000
[   60.388007][ T8509] RDX: 0000000000000010 RSI: 000000000000000f RDI: 0000000000000000
[   60.395969][ T8509] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   60.403915][ T8509] R10: 0000000000000000 R11: 000000