hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7306 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Modules linked in:
CPU: 1 PID: 7306 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #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 2c 5c e4 08 e9 78 fd ff ff e8 52 4f 1c ff 4c 89 ff e8 6a 1d f2 08 48 c7 c7 80 f6 c0 8b 44 89 e6 e8 0b 5c 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:ffffc900129aee18 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888029b1c550 RCX: 7215393ef6438c00
RDX: ffffc90009b89000 RSI: 0000000000017242 RDI: 0000000000017243
RBP: 0000000000000000 R08: ffffffff81753e5c R09: 1ffff92002535d64
R10: dffffc0000000000 R11: fffff52002535d65 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88803395c000 R15: ffff88803395c0e0
FS:  00007f64be5666c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7733d94000 CR3: 000000001110e000 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
 lookup_open fs/namei.c:3500 [inline]
 open_last_lookups fs/namei.c:3569 [inline]
 path_openat+0x1424/0x3240 fs/namei.c:3799
 do_filp_open+0x234/0x490 fs/namei.c:3829
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_creat fs/open.c:1495 [inline]
 __se_sys_creat fs/open.c:1489 [inline]
 __x64_sys_creat+0x123/0x170 fs/open.c:1489
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f64bd87dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f64be5660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f64bd9ac050 RCX: 00007f64bd87dda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f64bd8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f64bd9ac050 R15: 00007ffe8d4c0a78
 </TASK>