[  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 '10.128.0.138' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   51.259610][ T7231] MINIX-fs: mounting unchecked file system, running fsck is recommended
[   51.278117][ T7231] ------------[ cut here ]------------
[   51.283667][ T7231] WARNING: CPU: 1 PID: 7231 at fs/inode.c:360 inc_nlink+0x11e/0x130
[   51.291705][ T7231] Kernel panic - not syncing: panic_on_warn set ...
[   51.298274][ T7231] CPU: 1 PID: 7231 Comm: syz-executor375 Not tainted 5.7.0-rc1-syzkaller #0
[   51.306915][ T7231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.316963][ T7231] Call Trace:
[   51.320230][ T7231]  dump_stack+0x1e9/0x30e
[   51.324537][ T7231]  panic+0x264/0x7a0
[   51.328466][ T7231]  ? __warn+0x102/0x210
[   51.332600][ T7231]  ? inc_nlink+0x11e/0x130
[   51.336990][ T7231]  __warn+0x209/0x210
[   51.340973][ T7231]  ? inc_nlink+0x11e/0x130
[   51.345365][ T7231]  report_bug+0x1ac/0x2d0
[   51.349672][ T7231]  do_error_trap+0xca/0x1c0
[   51.354148][ T7231]  do_invalid_op+0x32/0x40
[   51.358544][ T7231]  ? inc_nlink+0x11e/0x130
[   51.362932][ T7231]  invalid_op+0x23/0x30
[   51.367111][ T7231] RIP: 0010:inc_nlink+0x11e/0x130
[   51.372190][ T7231] Code: ef ff e9 38 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 ef e8 7c 93 ef ff e9 3c ff ff ff e8 12 b6 b1 ff <0f> 0b eb 80 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56
[   51.392375][ T7231] RSP: 0018:ffffc90001637dc0 EFLAGS: 00010293
[   51.398412][ T7231] RAX: ffffffff81c1acbe RBX: 1ffff11010bf1749 RCX: ffff8880a1a58400
[   51.406460][ T7231] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   51.414408][ T7231] RBP: 0000000000000000 R08: ffffffff81c1ac38 R09: ffffc90001637db0
[   51.422354][ T7231] R10: fffff520002c6fba R11: 0000000000000000 R12: dffffc0000000000
[   51.430313][ T7231] R13: ffff888085f8ba48 R14: ffff888085f8ba00 R15: 0000000000000000
[   51.438263][ T7231]  ? inc_nlink+0x98/0x130
[   51.442574][ T7231]  ? inc_nlink+0x11e/0x130
[   51.446985][ T7231]  minix_mkdir+0x3b/0x200
[   51.451285][ T7231]  ? security_inode_mkdir+0xcf/0x120
[   51.456544][ T7231]  vfs_mkdir+0x42a/0x620
[   51.460763][ T7231]  do_mkdirat+0x1b9/0x310
[   51.465237][ T7231]  do_syscall_64+0xf3/0x1b0
[   51.469720][ T7231]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   51.475625][ T7231] RIP: 0033:0x444a69
[   51.479493][ T7231] Code: 0d d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
[   51.499071][ T7231] RSP: 002b:00007ffdc5ba7d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[   51.507458][ T7231] RAX: ffffffffffffffda RBX: 00007ffdc5ba7d10 RCX: 0000000000444a69
[   51.515411][ T7231] RDX: 0000000000000050 RSI: 0000000020000040 RDI: 0000000000000003
[   51.523370][ T7231] RBP: 0000000000000000 R08: 0000000000400e50 R09: 0000000000400e50
[   51.531340][ T7231] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004026d0
[   51.539325][ T7231] R13: 0000000000402760 R14: 0000000000000000 R15: 0000000000000000
[   51.548579][ T7231] Kernel Offset: disabled
[   51.552946][ T7231] Rebooting in 86400 seconds..