hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 28749 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Modules linked in:
CPU: 1 PID: 28749 Comm: syz-executor.1 Not tainted 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Code: 44 89 e6 e8 3c 40 e4 08 e9 78 fd ff ff e8 62 53 1c ff 4c 89 ff e8 7a 01 f2 08 48 c7 c7 80 f6 c0 8b 44 89 e6 e8 1b 40 e4 08 90 <0f> 0b 90 eb af 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 83 fc ff ff 48
RSP: 0018:ffffc90013dd7278 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88807c7c2500 RCX: 252a1ac728003600
RDX: ffffc9000926a000 RSI: 0000000000003823 RDI: 0000000000003824
RBP: 0000000000000000 R08: ffffffff81753e5c R09: 1ffff920027badf0
R10: dffffc0000000000 R11: fffff520027badf1 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802cfb6000 R15: ffff88802cfb60e0
FS:  00007f20203376c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110f2b80d0 CR3: 000000001f108000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x59a/0x640 fs/hfsplus/btree.c:415
 hfs_btree_inc_height+0x11e/0xdc0 fs/hfsplus/brec.c:475
 hfsplus_brec_insert+0x166/0xde0 fs/hfsplus/brec.c:75
 hfsplus_create_attr+0x4a2/0x640 fs/hfsplus/attributes.c:252
 __hfsplus_setxattr+0x6fe/0x22d0 fs/hfsplus/xattr.c:354
 hfsplus_initxattrs+0x158/0x220 fs/hfsplus/xattr_security.c:59
 security_inode_init_security+0x2b1/0x480 security/security.c:1753
 hfsplus_mknod+0x1c6/0x2a0 fs/hfsplus/dir.c:498
 vfs_mkdir+0x2f9/0x4b0 fs/namei.c:4126
 do_mkdirat+0x264/0x3a0 fs/namei.c:4149
 __do_sys_mkdirat fs/namei.c:4164 [inline]
 __se_sys_mkdirat fs/namei.c:4162 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4162
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f201f67c8a7
Code: 73 01 c3 48 c7 c1 b0 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2020336ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f2020336f80 RCX: 00007f201f67c8a7
RDX: 00000000000001ff RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 0000000020000000 R08: 0000000020000600 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000020000040
R13: 00007f2020336f40 R14: 0000000000000000 R15: 0000000020000440
 </TASK>