Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   66.466877][ T7151] MINIX-fs: mounting unchecked file system, running fsck is recommended
[   66.496040][ T7151] ------------[ cut here ]------------
[   66.501696][ T7151] WARNING: CPU: 1 PID: 7151 at fs/inode.c:360 inc_nlink+0x144/0x160
[   66.509682][ T7151] Kernel panic - not syncing: panic_on_warn set ...
[   66.516277][ T7151] CPU: 1 PID: 7151 Comm: syz-executor403 Not tainted 5.7.0-rc1-next-20200415-syzkaller #0
[   66.526437][ T7151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.536624][ T7151] Call Trace:
[   66.540412][ T7151]  dump_stack+0x188/0x20d
[   66.544867][ T7151]  ? inc_nlink+0x140/0x160
[   66.549561][ T7151]  panic+0x2e3/0x75c
[   66.553473][ T7151]  ? add_taint.cold+0x16/0x16
[   66.558594][ T7151]  ? printk+0xba/0xed
[   66.562563][ T7151]  ? kmsg_dump_rewind_nolock+0xd9/0xd9
[   66.568029][ T7151]  ? __warn.cold+0x14/0x35
[   66.572437][ T7151]  ? __warn+0xd5/0x1c8
[   66.576514][ T7151]  ? inc_nlink+0x144/0x160
[   66.580937][ T7151]  __warn.cold+0x2f/0x35
[   66.585204][ T7151]  ? inc_nlink+0x144/0x160
[   66.589608][ T7151]  report_bug+0x27b/0x2f0
[   66.593935][ T7151]  do_error_trap+0x12b/0x220
[   66.598513][ T7151]  ? inc_nlink+0x144/0x160
[   66.602934][ T7151]  do_invalid_op+0x32/0x40
[   66.607373][ T7151]  ? inc_nlink+0x144/0x160
[   66.611785][ T7151]  invalid_op+0x23/0x30
[   66.615942][ T7151] RIP: 0010:inc_nlink+0x144/0x160
[   66.621322][ T7151] Code: ff 4c 89 e7 e8 dd a8 ee ff e9 42 ff ff ff 4c 89 e7 e8 60 a8 ee ff e9 fc fe ff ff 4c 89 e7 e8 53 a8 ee ff eb d4 e8 8c 87 b0 ff <0f> 0b e9 6e ff ff ff e8 50 a8 ee ff e9 44 ff ff ff e8 46 a8 ee ff
[   66.641887][ T7151] RSP: 0018:ffffc900015cfd88 EFLAGS: 00010293
[   66.648067][ T7151] RAX: ffff8880906304c0 RBX: ffff888089519a00 RCX: ffffffff81c2ac70
[   66.656556][ T7151] RDX: 0000000000000000 RSI: ffffffff81c2ad04 RDI: 0000000000000007
[   66.664789][ T7151] RBP: 0000000000000000 R08: ffff8880906304c0 R09: ffffed1015440757
[   66.672778][ T7151] R10: ffff8880aa203ab3 R11: ffffed1015440756 R12: ffff888089519a48
[   66.680770][ T7151] R13: ffff88808a7da170 R14: ffff88808a7da1d0 R15: 0000000000000000
[   66.688850][ T7151]  ? inc_nlink+0xb0/0x160
[   66.693166][ T7151]  ? inc_nlink+0x144/0x160
[   66.697578][ T7151]  ? inc_nlink+0x144/0x160
[   66.702005][ T7151]  minix_mkdir+0x71/0x1b0
[   66.706463][ T7151]  ? minix_create+0x30/0x30
[   66.710958][ T7151]  ? generic_permission+0x116/0x520
[   66.716167][ T7151]  ? security_inode_permission+0xc4/0xf0
[   66.721812][ T7151]  ? security_inode_mkdir+0xd9/0x110
[   66.727360][ T7151]  vfs_mkdir+0x419/0x690
[   66.731766][ T7151]  do_mkdirat+0x21e/0x280
[   66.736111][ T7151]  ? __ia32_sys_mknod+0xb0/0xb0
[   66.740960][ T7151]  ? fpregs_mark_activate+0x320/0x320
[   66.746441][ T7151]  ? trace_hardirqs_off_caller+0x55/0x230
[   66.752262][ T7151]  do_syscall_64+0xf6/0x7d0
[   66.756761][ T7151]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[   66.762674][ T7151] RIP: 0033:0x444ba9
[   66.766564][ T7151] Code: ad d7 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 7b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
[   66.786511][ T7151] RSP: 002b:00007ffe0f111ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[   66.794933][ T7151] RAX: ffffffffffffffda RBX: 00007ffe0f1120a0 RCX: 0000000000444ba9
[   66.802914][ T7151] RDX: 0000000000000050 RSI: 0000000020000040 RDI: 0000000000000003
[   66.811115][ T7151] RBP: 0000000000000000 R08: 0000000000400f30 R09: 0000000000400f30
[   66.819221][ T7151] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004027b0
[   66.827499][ T7151] R13: 0000000000402840 R14: 0000000000000000 R15: 0000000000000000
[   66.837741][ T7151] Kernel Offset: disabled
[   66.842144][ T7151] Rebooting in 86400 seconds..