------------[ cut here ]------------ WARNING: CPU: 1 PID: 5856 at fs/inode.c:464 inc_nlink+0x127/0x150 fs/inode.c:464 Modules linked in: CPU: 1 UID: 0 PID: 5856 Comm: syz-executor140 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:inc_nlink+0x127/0x150 fs/inode.c:464 Code: 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 24 d1 e5 ff e9 3a ff ff ff e8 ba 40 7e ff 90 <0f> 0b 90 e9 7b ff ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 49 RSP: 0018:ffffc90003f5fd30 EFLAGS: 00010293 RAX: ffffffff82170b76 RBX: 1ffff1100e783810 RCX: ffff88807c05bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82170af0 R09: 0000000000000000 R10: ffffc90003f5fca8 R11: ffffffff82ba3d80 R12: dffffc0000000000 R13: ffff888073c1c080 R14: ffff888073c1c038 R15: 0000000000000000 FS: 000055556d11e380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556d1276f8 CR3: 000000007879a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8cbe44ccd9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff98077808 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8cbe44ccd9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 00000000ffffff9c RBP: 00007f8cbe4c95f0 R08: 0000000000009e7a R09: 000055556d11f4c0 R10: 00007fff980776d0 R11: 0000000000000246 R12: 00007fff98077830 R13: 00007fff98077a58 R14: 431bde82d7b634db R15: 00007f8cbe49503b