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


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.191' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   44.786360][ T6770] general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#1] PREEMPT SMP KASAN
[   44.786368][ T6770] KASAN: probably user-memory-access in range [0x0000000100000008-0x000000010000000f]
[   44.786378][ T6770] CPU: 0 PID: 6770 Comm: syz-executor124 Not tainted 5.7.0-syzkaller #0
[   44.786383][ T6770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.786400][ T6770] RIP: 0010:do_con_write+0x1a6a/0xf2d0
[   44.786407][ T6770] Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 15 99 b4 fd 48 8b 7c 24 60 48 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c5 02 00 00 66 44 89 33 48 c7 c7 5c 4c
[   44.786412][ T6770] RSP: 0018:ffffc900015f78a0 EFLAGS: 00010203
[   44.786418][ T6770] RAX: 0000000020000001 RBX: 000000010000000e RCX: ffff888091aa20c0
[   44.786422][ T6770] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a68cf3f0
[   44.786426][ T6770] RBP: ffffc900015f7b90 R08: ffffffff83feea21 R09: ffffffff83fd1650
[   44.786431][ T6770] R10: 0000000000000006 R11: ffff888091aa20c0 R12: ffff8880a68cf000
[   44.786436][ T6770] R13: dffffc0000000000 R14: 000000000000075e R15: 1ffff11014d19e7e
[   44.786444][ T6770] FS:  00000000015d5880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   44.786450][ T6770] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.786454][ T6770] CR2: 00000000004553a0 CR3: 00000000a075a000 CR4: 00000000001406f0
[   44.786462][ T6770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.786467][ T6770] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.786470][ T6770] Call Trace:
[   44.786506][ T6770]  con_put_char+0x7d/0xc0
[   44.786515][ T6770]  ? con_write+0x40/0x40
[   44.786526][ T6770]  tty_put_char+0x97/0x110
[   44.786537][ T6770]  __process_echoes+0x45e/0x930
[   44.786549][ T6770]  n_tty_receive_buf_common+0x29fa/0x3100
[   44.786568][ T6770]  ? n_tty_poll+0x7a0/0x7a0
[   44.786578][ T6770]  tty_ioctl+0xd5b/0x15c0
[   44.786594][ T6770]  ? tty_do_resize+0x180/0x180
[   44.786603][ T6770]  __se_sys_ioctl+0xf9/0x160
[   44.786616][ T6770]  do_syscall_64+0xf3/0x1b0
[   44.786627][ T6770]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   44.786634][ T6770] RIP: 0033:0x440459
[   44.786641][ T6770] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   44.786646][ T6770] RSP: 002b:00007ffcfd1657f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   44.786653][ T6770] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440459
[   44.786658][ T6770] RDX: 00000000200000c0 RSI: 0000000000005412 RDI: 0000000000000004
[   44.786664][ T6770] RBP: 00000000006ca018 R08: 000000000000000e R09: 00000000004002c8
[   44.786669][ T6770] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401d40
[   44.786674][ T6770] R13: 0000000000401dd0 R14: 0000000000000000 R15: 0000000000000000
[   44.786683][ T6770] Modules linked in:
[   44.786697][ T6770] ---[ end trace 3e5740fb3d6790fd ]---
[   44.786707][ T6770] RIP: 0010:do_con_write+0x1a6a/0xf2d0
[   44.786713][ T6770] Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 15 99 b4 fd 48 8b 7c 24 60 48 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c5 02 00 00 66 44 89 33 48 c7 c7 5c 4c
[   44.786717][ T6770] RSP: 0018:ffffc900015f78a0 EFLAGS: 00010203
[   44.786724][ T6770] RAX: 0000000020000001 RBX: 000000010000000e RCX: ffff888091aa20c0
[   44.786728][ T6770] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a68cf3f0
[   44.786733][ T6770] RBP: ffffc900015f7b90 R08: ffffffff83feea21 R09: ffffffff83fd1650
[   44.786737][ T6770] R10: 0000000000000006 R11: ffff888091aa20c0 R12: ffff8880a68cf000
[   44.786742][ T6770] R13: dffffc0000000000 R14: 000000000000075e R15: 1ffff11014d19e7e
[   44.786749][ T6770] FS:  00000000015d5880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   44.786755][ T6770] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.786759][ T6770] CR2: 00000000004553a0 CR3: 00000000a075a000 CR4: 00000000001406f0
[   44.786764][ T6770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.786769][ T6770] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.786775][ T6770] Kernel panic - not syncing: Fatal exception
[   44.787469][ T6770] Kernel Offset: disabled
[   45.197905][ T6770] Rebooting in 86400 seconds..