[  OK  ] Started Getty on tty2.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Reached target Login Prompts.
[  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...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.12' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [   42.345748][ T7070] BUG: unable to handle page fault for address: fffffffff8778570
[   42.345756][ T7070] #PF: supervisor instruction fetch in kernel mode
[   42.345761][ T7070] #PF: error_code(0x0010) - not-present page
[   42.345766][ T7070] PGD 927c067 P4D 927c067 PUD 927e067 PMD 0 
[   42.345781][ T7070] Oops: 0010 [#1] PREEMPT SMP KASAN
[   42.345791][ T7070] CPU: 1 PID: 7070 Comm: syz-executor231 Not tainted 5.7.0-rc3-syzkaller #0
[   42.345795][ T7070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   42.345804][ T7070] RIP: 0010:0xfffffffff8778570
[   42.345811][ T7070] Code: Bad RIP value.
[   42.345815][ T7070] RSP: 0018:ffffc90001627f00 EFLAGS: 00010206
[   42.345822][ T7070] RAX: 0000000000000000 RBX: 0000000000004000 RCX: ffff888092d64280
[   42.345827][ T7070] RDX: ffff888092d64280 RSI: 0000000000000200 RDI: 0000000000000000
[   42.345832][ T7070] RBP: 0000000000000200 R08: ffffffff8100848d R09: fffffbfff16e6e11
[   42.345837][ T7070] R10: fffffbfff16e6e11 R11: 0000000000000000 R12: 1ffff110125ac850
[   42.345842][ T7070] R13: dffffc0000000000 R14: ffff888092d64280 R15: ffff888092d64280
[   42.345849][ T7070] FS:  0000000001be0880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   42.345854][ T7070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.345860][ T7070] CR2: fffffffff8778546 CR3: 00000000a82d6000 CR4: 00000000001406e0
[   42.345868][ T7070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   42.345873][ T7070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   42.345875][ T7070] Call Trace:
[   42.345891][ T7070]  ? syscall_return_slowpath+0x9b/0x420
[   42.345904][ T7070]  ? entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   42.345912][ T7070] Modules linked in:
[   42.345919][ T7070] CR2: fffffffff8778570
[   42.345930][ T7070] ---[ end trace 8e914c2fec746223 ]---
[   42.345937][ T7070] RIP: 0010:0xfffffffff8778570
[   42.345942][ T7070] Code: Bad RIP value.
[   42.345947][ T7070] RSP: 0018:ffffc90001627f00 EFLAGS: 00010206
[   42.345953][ T7070] RAX: 0000000000000000 RBX: 0000000000004000 RCX: ffff888092d64280
[   42.345958][ T7070] RDX: ffff888092d64280 RSI: 0000000000000200 RDI: 0000000000000000
[   42.345962][ T7070] RBP: 0000000000000200 R08: ffffffff8100848d R09: fffffbfff16e6e11
[   42.345967][ T7070] R10: fffffbfff16e6e11 R11: 0000000000000000 R12: 1ffff110125ac850
[   42.345973][ T7070] R13: dffffc0000000000 R14: ffff888092d64280 R15: ffff888092d64280
[   42.345979][ T7070] FS:  0000000001be0880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   42.345985][ T7070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.345989][ T7070] CR2: fffffffff8778546 CR3: 00000000a82d6000 CR4: 00000000001406e0
[   42.345994][ T7070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   42.345999][ T7070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   42.346004][ T7070] Kernel panic - not syncing: Fatal exception
[   42.347419][ T7070] Kernel Offset: disabled
[   42.624008][ T7070] Rebooting in 86400 seconds..