[  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...
[  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 '10.128.0.124' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   47.096459][ T7201] ==================================================================
[   47.104775][ T7201] BUG: KASAN: user-memory-access in put_page+0x110/0x1d0
[   47.111837][ T7201] Read of size 4 at addr 00003fbf7e8680b0 by task syz-executor574/7201
[   47.120063][ T7201] 
[   47.122374][ T7201] CPU: 0 PID: 7201 Comm: syz-executor574 Not tainted 5.6.0-syzkaller #0
[   47.130757][ T7201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.140815][ T7201] Call Trace:
[   47.144090][ T7201]  dump_stack+0x1e9/0x30e
[   47.148409][ T7201]  __kasan_report+0x122/0x190
[   47.153071][ T7201]  ? put_page+0x110/0x1d0
[   47.157377][ T7201]  ? put_page+0x110/0x1d0
[   47.161688][ T7201]  kasan_report+0x4d/0x80
[   47.166015][ T7201]  ? check_memory_region+0x2b5/0x2f0
[   47.171275][ T7201]  ? put_page+0x110/0x1d0
[   47.175579][ T7201]  ? trace_irq_disable_rcuidle+0x1f/0x1d0
[   47.181270][ T7201]  ? kernel_get_mempolicy+0x568/0xe10
[   47.186620][ T7201]  ? trace_irq_disable_rcuidle+0x1f/0x1d0
[   47.192400][ T7201]  ? __x64_sys_get_mempolicy+0xb1/0xc0
[   47.197836][ T7201]  ? do_syscall_64+0xf3/0x1b0
[   47.202488][ T7201]  ? entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   47.208539][ T7201] ==================================================================
[   47.216571][ T7201] Disabling lock debugging due to kernel taint
[   47.227568][ T7201] Kernel panic - not syncing: panic_on_warn set ...
[   47.234158][ T7201] CPU: 0 PID: 7201 Comm: syz-executor574 Tainted: G    B             5.6.0-syzkaller #0
[   47.243838][ T7201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.253865][ T7201] Call Trace:
[   47.257131][ T7201]  dump_stack+0x1e9/0x30e
[   47.261432][ T7201]  panic+0x264/0x7a0
[   47.265313][ T7201]  ? trace_hardirqs_on+0x30/0x70
[   47.270223][ T7201]  __kasan_report+0x187/0x190
[   47.274871][ T7201]  ? put_page+0x110/0x1d0
[   47.279171][ T7201]  ? put_page+0x110/0x1d0
[   47.283484][ T7201]  kasan_report+0x4d/0x80
[   47.287797][ T7201]  ? check_memory_region+0x2b5/0x2f0
[   47.293054][ T7201]  ? put_page+0x110/0x1d0
[   47.297355][ T7201]  ? trace_irq_disable_rcuidle+0x1f/0x1d0
[   47.303046][ T7201]  ? kernel_get_mempolicy+0x568/0xe10
[   47.308386][ T7201]  ? trace_irq_disable_rcuidle+0x1f/0x1d0
[   47.314077][ T7201]  ? __x64_sys_get_mempolicy+0xb1/0xc0
[   47.319604][ T7201]  ? do_syscall_64+0xf3/0x1b0
[   47.324251][ T7201]  ? entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   47.331542][ T7201] Kernel Offset: disabled
[   47.335858][ T7201] Rebooting in 86400 seconds..