[  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 '10.128.0.46' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   36.363694] MINIX-fs: mounting unchecked file system, running fsck is recommended
[   36.376617] ------------[ cut here ]------------
[   36.381689] WARNING: CPU: 1 PID: 6343 at fs/inode.c:342 inc_nlink+0x113/0x130
[   36.389133] Kernel panic - not syncing: panic_on_warn set ...
[   36.389133] 
[   36.396512] CPU: 1 PID: 6343 Comm: syz-executor209 Not tainted 4.14.175-syzkaller #0
[   36.404389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.413742] Call Trace:
[   36.416325]  dump_stack+0x13e/0x194
[   36.419954]  panic+0x1f9/0x42d
[   36.423145]  ? add_taint.cold+0x16/0x16
[   36.427242]  ? inc_nlink+0x113/0x130
[   36.430938]  ? inc_nlink+0x113/0x130
[   36.434634]  __warn.cold+0x2f/0x30
[   36.438265]  ? ist_end_non_atomic+0x10/0x10
[   36.442570]  ? inc_nlink+0x113/0x130
[   36.446338]  report_bug+0x20a/0x248
[   36.449954]  do_error_trap+0x195/0x2d0
[   36.453822]  ? math_error+0x2d0/0x2d0
[   36.457603]  ? avc_has_perm_noaudit+0x400/0x400
[   36.462261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   36.467144]  invalid_op+0x1b/0x40
[   36.470580] RIP: 0010:inc_nlink+0x113/0x130
[   36.474890] RSP: 0018:ffff88809822fdb0 EFLAGS: 00010297
[   36.480237] RAX: ffff88808dad6040 RBX: ffff888082abf970 RCX: 1ffff11011b5ad16
[   36.487487] RDX: 0000000000000000 RSI: ffff888083a03dc0 RDI: ffff888082abfa48
[   36.494736] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000002
[   36.501985] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888082abf9b8
[   36.509248] R13: ffff888083a03dc0 R14: ffff888083a03e18 R15: 0000000000000000
[   36.516514]  minix_mkdir+0x5a/0x160
[   36.520124]  ? minix_create+0x30/0x30
[   36.523991]  ? security_inode_mkdir+0xcc/0x100
[   36.528550]  vfs_mkdir+0x3af/0x620
[   36.532068]  SyS_mkdirat+0x1bc/0x210
[   36.535760]  ? SyS_mknod+0x390/0x390
[   36.539459]  ? __do_page_fault+0x35b/0xb40
[   36.543693]  ? do_syscall_64+0x4c/0x640
[   36.547645]  ? SyS_mknod+0x390/0x390
[   36.551338]  do_syscall_64+0x1d5/0x640
[   36.555205]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   36.560377] RIP: 0033:0x444a69
[   36.563556] RSP: 002b:00007fff850405a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[   36.571243] RAX: ffffffffffffffda RBX: 00007fff850405b0 RCX: 0000000000444a69
[   36.578503] RDX: 0000000000000050 RSI: 0000000020000040 RDI: 0000000000000003
[   36.585751] RBP: 0000000000000000 R08: 0000000000400e50 R09: 0000000000400e50
[   36.593003] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004026d0
[   36.600309] R13: 0000000000402760 R14: 0000000000000000 R15: 0000000000000000
[   36.609484] Kernel Offset: disabled
[   36.613161] Rebooting in 86400 seconds..