------------[ cut here ]------------
WARNING: CPU: 0 PID: 6655 at fs/inode.c:464 inc_nlink+0x126/0x150
Modules linked in:
CPU: 0 UID: 0 PID: 6655 Comm: syz.0.15 Not tainted 6.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:inc_nlink+0x126/0x150 fs/inode.c:464
Code: e8 ff e9 35 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 47 ff ff ff 4c 89 ef e8 04 1b e8 ff e9 3a ff ff ff e8 ea 32 80 ff <0f> 0b eb 80 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 4e ff ff ff 4c
RSP: 0018:ffffc90002e6fd50 EFLAGS: 00010293
RAX: ffffffff821376e6 RBX: 1ffff1100e559010 RCX: ffff8880249bbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82137660 R09: 1ffff110034c87a0
R10: dffffc0000000000 R11: ffffffff82b87430 R12: dffffc0000000000
R13: ffff888072ac8080 R14: ffff888072ac8038 R15: 0000000000000000
FS:  00007f0b340136c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38cf307980 CR3: 0000000033a2e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_inc_link_count include/linux/fs.h:2515 [inline]
 sysv_mkdir+0x21/0x130 fs/sysv/namei.c:119
 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4311
 do_mkdirat+0x264/0x3a0 fs/namei.c:4334
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f0b3317e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0b34013038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f0b33335fa0 RCX: 00007f0b3317e819
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f0b331f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0b33335fa0 R15: 00007ffd471effd8
 </TASK>