[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   66.234262][ T6788] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
[   66.246123][ T6788] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
[   66.254647][ T6788] CPU: 1 PID: 6788 Comm: syz-executor004 Not tainted 5.8.0-rc2-syzkaller #0
[   66.263462][ T6788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.273604][ T6788] RIP: 0010:qrtr_endpoint_post+0x92/0x1010
[   66.279387][ T6788] Code: 44 89 e6 e8 80 51 50 fe 48 85 c0 48 89 c5 0f 84 c4 0e 00 00 e8 ef 6b 96 f9 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 4a 0d 00 00
[   66.299068][ T6788] RSP: 0018:ffffc90001477c60 EFLAGS: 00010202
[   66.305108][ T6788] RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffffff862d38d2
[   66.313053][ T6788] RDX: 0000000000000002 RSI: ffffffff87dce501 RDI: ffff8880a7eb7bd0
[   66.321009][ T6788] RBP: ffff8880a7eb7bc0 R08: 0000000000000001 R09: ffff88808cf170e3
[   66.328969][ T6788] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   66.338591][ T6788] R13: ffff88809dd59f00 R14: ffffc90001477ec8 R15: 0000000000000000
[   66.346539][ T6788] FS:  0000000001e41880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[   66.355544][ T6788] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.362102][ T6788] CR2: 00000000004551d0 CR3: 00000000a7dac000 CR4: 00000000001406e0
[   66.370066][ T6788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.378026][ T6788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.386051][ T6788] Call Trace:
[   66.389438][ T6788]  ? __check_object_size+0x30/0x3e4
[   66.394688][ T6788]  qrtr_tun_write_iter+0xf5/0x180
[   66.399758][ T6788]  new_sync_write+0x422/0x650
[   66.404412][ T6788]  ? new_sync_read+0x6e0/0x6e0
[   66.409337][ T6788]  ? rcu_read_lock_sched_held+0x3a/0xb0
[   66.414897][ T6788]  ? security_file_permission+0x239/0x470
[   66.420629][ T6788]  __vfs_write+0xc9/0x100
[   66.425103][ T6788]  vfs_write+0x268/0x5d0
[   66.429321][ T6788]  ksys_write+0x12d/0x250
[   66.433725][ T6788]  ? __ia32_sys_read+0xb0/0xb0
[   66.438464][ T6788]  ? do_syscall_64+0x1c/0xe0
[   66.443036][ T6788]  ? lockdep_hardirqs_on_prepare+0x3a2/0x590
[   66.449019][ T6788]  do_syscall_64+0x60/0xe0
[   66.453428][ T6788]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   66.459315][ T6788] RIP: 0033:0x440269
[   66.463178][ T6788] Code: Bad RIP value.
[   66.467321][ T6788] RSP: 002b:00007ffd9e5b75f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   66.475810][ T6788] RAX: ffffffffffffffda RBX: 00007ffd9e5b7600 RCX: 0000000000440269
[   66.483982][ T6788] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[   66.491956][ T6788] RBP: 00000000006ca018 R08: 000000000000000f R09: 65732f636f72702f
[   66.500018][ T6788] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b50
[   66.508140][ T6788] R13: 0000000000401be0 R14: 0000000000000000 R15: 0000000000000000
[   66.516091][ T6788] Modules linked in:
[   66.520927][ T6788] ---[ end trace 1fa64dbc5005a6a8 ]---
[   66.526569][ T6788] RIP: 0010:qrtr_endpoint_post+0x92/0x1010
[   66.532392][ T6788] Code: 44 89 e6 e8 80 51 50 fe 48 85 c0 48 89 c5 0f 84 c4 0e 00 00 e8 ef 6b 96 f9 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 4a 0d 00 00
[   66.552058][ T6788] RSP: 0018:ffffc90001477c60 EFLAGS: 00010202
[   66.558187][ T6788] RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffffff862d38d2
[   66.566219][ T6788] RDX: 0000000000000002 RSI: ffffffff87dce501 RDI: ffff8880a7eb7bd0
[   66.574236][ T6788] RBP: ffff8880a7eb7bc0 R08: 0000000000000001 R09: ffff88808cf170e3
[   66.582223][ T6788] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   66.590600][ T6788] R13: ffff88809dd59f00 R14: ffffc90001477ec8 R15: 0000000000000000
[   66.598717][ T6788] FS:  0000000001e41880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[   66.607715][ T6788] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.614973][ T6788] CR2: 00000000004551d0 CR3: 00000000a7dac000 CR4: 00000000001406e0
[   66.622935][ T6788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.630982][ T6788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.638989][ T6788] Kernel panic - not syncing: Fatal exception
[   66.646511][ T6788] Kernel Offset: disabled
[   66.650826][ T6788] Rebooting in 86400 seconds..