[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts.
executing program
executing program
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syzkaller login: [   64.888942][ T7038] general protection fault, probably for non-canonical address 0xdffffc001fffffe9: 0000 [#1] PREEMPT SMP KASAN
[   64.888952][ T7038] KASAN: probably user-memory-access in range [0x00000000ffffff48-0x00000000ffffff4f]
[   64.888965][ T7038] CPU: 0 PID: 7038 Comm: syz-executor944 Not tainted 5.7.0-rc3-syzkaller #0
[   64.888971][ T7038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.888988][ T7038] RIP: 0010:do_con_write.part.0+0x9a3/0x1dc0
[   64.888998][ T7038] Code: 24 ae 00 00 00 45 01 ef e8 9a ca 88 fd 48 8b 44 24 60 80 38 00 0f 85 af 11 00 00 49 8b 9c 24 f0 03 00 00 48 89 d8 48 c1 e8 03 <0f> b6 14 28 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 e6
[   64.889004][ T7038] RSP: 0018:ffffc90001667a58 EFLAGS: 00010202
[   64.889013][ T7038] RAX: 000000001fffffe9 RBX: 00000000ffffff48 RCX: ffffffff83ea63b6
[   64.889019][ T7038] RDX: 0000000000000000 RSI: ffffffff83ea6406 RDI: 0000000000000003
[   64.889026][ T7038] RBP: dffffc0000000000 R08: ffff8880a41a2600 R09: fffffbfff15129a9
[   64.889032][ T7038] R10: ffffffff8a894d47 R11: fffffbfff15129a8 R12: ffff888092cf8000
[   64.889039][ T7038] R13: 0000000000000000 R14: ffff888092cf83dc R15: 0000000000000778
[   64.889047][ T7038] FS:  0000000000cb6880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[   64.889054][ T7038] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.889059][ T7038] CR2: 00000000006cc090 CR3: 000000009571f000 CR4: 00000000001406f0
[   64.889069][ T7038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   64.889076][ T7038] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   64.889079][ T7038] Call Trace:
[   64.889100][ T7038]  ? do_con_trol+0x5d10/0x5d10
[   64.889111][ T7038]  ? rwlock_bug.part.0+0x90/0x90
[   64.889126][ T7038]  ? mark_held_locks+0x9f/0xe0
[   64.889138][ T7038]  con_write+0x41/0xe0
[   64.889150][ T7038]  n_tty_write+0x3f0/0xf90
[   64.889175][ T7038]  ? n_tty_read+0x1b30/0x1b30
[   64.889189][ T7038]  ? prepare_to_wait_exclusive+0x2c0/0x2c0
[   64.889202][ T7038]  ? __might_fault+0x190/0x1d0
[   64.889213][ T7038]  tty_write+0x495/0x800
[   64.889224][ T7038]  ? n_tty_read+0x1b30/0x1b30
[   64.889236][ T7038]  ? put_tty_driver+0x20/0x20
[   64.889247][ T7038]  __vfs_write+0x76/0x100
[   64.889259][ T7038]  vfs_write+0x268/0x5d0
[   64.889272][ T7038]  ksys_write+0x12d/0x250
[   64.889283][ T7038]  ? __ia32_sys_read+0xb0/0xb0
[   64.889295][ T7038]  ? trace_hardirqs_off_caller+0x55/0x230
[   64.889312][ T7038]  do_syscall_64+0xf6/0x7d0
[   64.889327][ T7038]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   64.889334][ T7038] RIP: 0033:0x441699
[   64.889345][ T7038] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   64.889351][ T7038] RSP: 002b:00007fffc9f80d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   64.889361][ T7038] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441699
[   64.889367][ T7038] RDX: 0000000000000320 RSI: 00000000200001c0 RDI: 0000000000000003
[   64.889374][ T7038] RBP: 00000000006cc018 R08: 000000000000000e R09: 00000000004002c8
[   64.889381][ T7038] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402410
[   64.889387][ T7038] R13: 00000000004024a0 R14: 0000000000000000 R15: 0000000000000000
[   64.889397][ T7038] Modules linked in:
[   64.889411][ T7038] ---[ end trace cdd4c2fedd666f5a ]---
[   64.889423][ T7038] RIP: 0010:do_con_write.part.0+0x9a3/0x1dc0
[   64.889433][ T7038] Code: 24 ae 00 00 00 45 01 ef e8 9a ca 88 fd 48 8b 44 24 60 80 38 00 0f 85 af 11 00 00 49 8b 9c 24 f0 03 00 00 48 89 d8 48 c1 e8 03 <0f> b6 14 28 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 e6
[   64.889439][ T7038] RSP: 0018:ffffc90001667a58 EFLAGS: 00010202
[   64.889448][ T7038] RAX: 000000001fffffe9 RBX: 00000000ffffff48 RCX: ffffffff83ea63b6
[   64.889455][ T7038] RDX: 0000000000000000 RSI: ffffffff83ea6406 RDI: 0000000000000003
[   64.889462][ T7038] RBP: dffffc0000000000 R08: ffff8880a41a2600 R09: fffffbfff15129a9
[   64.889470][ T7038] R10: ffffffff8a894d47 R11: fffffbfff15129a8 R12: ffff888092cf8000
[   64.889477][ T7038] R13: 0000000000000000 R14: ffff888092cf83dc R15: 0000000000000778
[   64.889486][ T7038] FS:  0000000000cb6880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[   64.889494][ T7038] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.889501][ T7038] CR2: 00000000006cc090 CR3: 000000009571f000 CR4: 00000000001406f0
[   64.889511][ T7038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   64.889518][ T7038] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   64.889524][ T7038] Kernel panic - not syncing: Fatal exception
[   64.890922][ T7038] Kernel Offset: disabled
[   65.333812][ T7038] Rebooting in 86400 seconds..