Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.144' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   59.538378][ T6889] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor728/6889
[   59.547839][ T6889] caller is lockdep_hardirqs_on_prepare+0x5e/0x450
[   59.554318][ T6889] CPU: 0 PID: 6889 Comm: syz-executor728 Not tainted 5.9.0-syzkaller #0
[   59.562658][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   59.572734][ T6889] Call Trace:
[   59.576007][ T6889]  dump_stack+0x198/0x1fb
[   59.580323][ T6889]  check_preemption_disabled+0x128/0x130
[   59.586303][ T6889]  lockdep_hardirqs_on_prepare+0x5e/0x450
[   59.592188][ T6889]  trace_hardirqs_on+0x5b/0x1c0
[   59.597019][ T6889]  __bad_area_nosemaphore+0xc6/0x4f0
[   59.602283][ T6889]  do_user_addr_fault+0x852/0xbf0
[   59.608508][ T6889]  exc_page_fault+0xa8/0x190
[   59.613072][ T6889]  ? asm_exc_page_fault+0x8/0x30
[   59.617998][ T6889]  asm_exc_page_fault+0x1e/0x30
[   59.622824][ T6889] RIP: 0033:0x424260
[   59.626697][ T6889] 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
[   59.646278][ T6889] RSP: 002b:00007ffdbe948038 EFLAGS: 00010246
[   59.652323][ T6889] RAX: 0000000000000000 RBX: 00007ffdbe948060 RCX: 0000000000000000
[   59.660271][ T6889] RDX: 0000000000000010 RSI: 000000000000000f RDI: 0000000000000000
[   59.668219][ T6889] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   59.676169][ T6889] R10: 0000000000000000 R11: 000000000000000f R12: 0000000000401de0
[   59.684117][ T6889] R13: 0000000000401e70 R14: 0000000000000000 R15: 0000000000000000
[   59.692819][ T6889] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor728/6889
[   59.702279][ T6889] caller is lockdep_hardirqs_on+0x34/0x110
[   59.708173][ T6889] CPU: 0 PID: 6889 Comm: syz-executor728 Not tainted 5.9.0-syzkaller #0
[   59.716497][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   59.726533][ T6889] Call Trace:
[   59.729806][ T6889]  dump_stack+0x198/0x1fb
[   59.734149][ T6889]  check_preemption_disabled+0x128/0x130
[   59.739764][ T6889]  ? __bad_area_nosemaphore+0xc6/0x4f0
[   59.745204][ T6889]  lockdep_hardirqs_on+0x34/0x110
[   59.750212][ T6889]  __bad_area_nosemaphore+0xc6/0x4f0
[   59.755483][ T6889]  do_user_addr_fault+0x852/0xbf0
[   59.760491][ T6889]  exc_page_fault+0xa8/0x190
[   59.765059][ T6889]  ? asm_exc_page_fault+0x8/0x30
[   59.769985][ T6889]  asm_exc_page_fault+0x1e/0x30
[   59.774811][ T6889] RIP: 0033:0x424260
[   59.778701][ T6889] 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
[   59.798280][ T6889] RSP: 002b:00007ffdbe948038 EFLAGS: 00010246
[   59.804324][ T6889] RAX: 0000000000000000 RBX: 00007ffdbe948060 RCX: 0000000000000000
[   59.812272][ T6889] RDX: 0000000000000010 RSI: 000000000000000f RDI: 0000000000000000
[   59.820221][ T6889] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   59.828168][ T6889] R10: 0000000000000000 R11: 000000000000000f R12: 0000000000401de0
[   59.836114][ T6889] R13: 0000000000401e7