Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   45.546307] MINIX-fs: mounting unchecked file system, running fsck is recommended
[   45.555588] ------------[ cut here ]------------
[   45.561390] WARNING: CPU: 1 PID: 6443 at fs/inode.c:343 inc_nlink.cold+0x11/0x18
[   45.568941] Kernel panic - not syncing: panic_on_warn set ...
[   45.568941] 
[   45.576309] CPU: 1 PID: 6443 Comm: syz-executor932 Not tainted 4.19.114-syzkaller #0
[   45.584179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.593538] Call Trace:
[   45.596135]  dump_stack+0x188/0x20d
[   45.600187]  panic+0x26a/0x50e
[   45.603366]  ? __warn_printk+0xf3/0xf3
[   45.607239]  ? inc_nlink.cold+0x11/0x18
[   45.611243]  ? __probe_kernel_read+0x16c/0x1b0
[   45.615919]  ? __warn.cold+0x5/0x46
[   45.619550]  ? __warn+0xe4/0x1c0
[   45.623048]  ? inc_nlink.cold+0x11/0x18
[   45.627066]  __warn.cold+0x20/0x46
[   45.630610]  ? inc_nlink.cold+0x11/0x18
[   45.634582]  report_bug+0x262/0x2a0
[   45.638199]  do_error_trap+0x1d7/0x310
[   45.642085]  ? math_error+0x310/0x310
[   45.645873]  ? __irq_work_queue_local+0x101/0x160
[   45.650701]  ? irq_work_queue+0x2b/0x80
[   45.654696]  ? wake_up_klogd+0x8c/0xc0
[   45.658570]  ? trace_hardirqs_off_caller+0x55/0x210
[   45.663632]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.668467]  invalid_op+0x14/0x20
[   45.671909] RIP: 0010:inc_nlink.cold+0x11/0x18
[   45.676531] Code: c5 b9 ff 44 89 e0 5b 5d 41 5c c3 e8 c0 90 ef ff eb c3 e8 c9 90 ef ff eb 8e e8 c2 c5 b9 ff 48 c7 c7 40 cd 74 87 e8 ff e2 a4 ff <0f> 0b e9 28 86 ff ff e8 aa c5 b9 ff 48 8d 7b 40 b8 ff ff 37 00 48
[   45.695510] RSP: 0018:ffff8880a52ffd88 EFLAGS: 00010282
[   45.700859] RAX: 0000000000000024 RBX: ffff88807fc6e960 RCX: 0000000000000000
[   45.708112] RDX: 0000000000000000 RSI: ffffffff8152d3a1 RDI: ffffed1014a5ffa3
[   45.715365] RBP: 0000000000000000 R08: 0000000000000024 R09: ffffed1015ce5079
[   45.722620] R10: ffffed1015ce5078 R11: ffff8880ae7283c7 R12: ffff88807fc6e9a8
[   45.729888] R13: ffff888083b46880 R14: ffff888083b468d8 R15: 0000000000000000
[   45.737159]  ? vprintk_func+0x81/0x17e
[   45.741051]  ? inc_nlink.cold+0x11/0x18
[   45.745023]  minix_mkdir+0x71/0x1b0
[   45.748636]  ? minix_create+0x30/0x30
[   45.752440]  ? security_inode_mkdir+0xd9/0x110
[   45.757035]  vfs_mkdir+0x419/0x690
[   45.760573]  do_mkdirat+0x21e/0x280
[   45.764185]  ? __ia32_sys_mknod+0xb0/0xb0
[   45.768317]  ? filp_close+0x129/0x160
[   45.772114]  ? trace_hardirqs_off_caller+0x55/0x210
[   45.777115]  ? do_syscall_64+0x21/0x620
[   45.781074]  do_syscall_64+0xf9/0x620
[   45.784860]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   45.790039] RIP: 0033:0x444a69
[   45.793215] 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
[   45.812101] RSP: 002b:00007ffea2f8cab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[   45.819887] RAX: ffffffffffffffda RBX: 00007ffea2f8cac0 RCX: 0000000000444a69
[   45.827138] RDX: 00000000000001ff RSI: 0000000020000080 RDI: 0000000000000003
[   45.834406] RBP: 0000000000000000 R08: 0000000000400e50 R09: 0000000000400e50
[   45.841667] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004026d0
[   45.848931] R13: 0000000000402760 R14: 0000000000000000 R15: 0000000000000000
[   45.857976] Kernel Offset: disabled
[   45.861766] Rebooting in 86400 seconds..