loop4: detected capacity change from 0 to 4096
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3903 at fs/inode.c:364 inc_nlink+0x120/0x130
Modules linked in:
CPU: 0 PID: 3903 Comm: syz.4.56 Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:inc_nlink+0x120/0x130 fs/inode.c:364
Code: ed ff e9 37 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 ef e8 8a 9e ed ff e9 3c ff ff ff e8 c0 d4 a3 ff <0f> 0b eb 80 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 53 48
RSP: 0018:ffffc90003577c08 EFLAGS: 00010246
RAX: ffffffff81dc9e70 RBX: 1ffff1100bb92032 RCX: 0000000000040000
RDX: ffffc900053a3000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff81dc9dea R09: ffffed100bb92106
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88805dc90190 R14: ffff88805dc90148 R15: 0000000000000000
FS:  00007fa2152d96c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf918af58 CR3: 0000000065853000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 v9fs_vfs_mkdir_dotl+0x6c9/0x870 fs/9p/vfs_inode_dotl.c:458
 vfs_mkdir+0x3b6/0x590 fs/namei.c:4065
 do_mkdirat+0x260/0x520 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa216e5f897
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa2152d8e68 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fa2152d8ef0 RCX: 00007fa216e5f897
RDX: 00000000000001ff RSI: 0000000020001080 RDI: 00000000ffffff9c
RBP: 0000000020001040 R08: 0000000000000000 R09: 0000000000001023
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020001080
R13: 00007fa2152d8eb0 R14: 0000000000001029 R15: 00000000200002c0
 </TASK>