hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15175 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Modules linked in:
CPU: 0 PID: 15175 Comm: syz-executor.4 Not tainted 6.8.0-rc5-syzkaller #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 5c ea e3 08 e9 78 fd ff ff e8 22 5d 1c ff 4c 89 ff e8 8a ab f1 08 48 c7 c7 80 f5 c0 8b 44 89 e6 e8 3b ea e3 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:ffffc9000af96df8 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888033312cc0 RCX: 8d9fa68270af5700
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81753dfc R09: 1ffff920015f2d14
R10: dffffc0000000000 R11: fffff520015f2d15 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802dde0000 R15: ffff88802dde00e0
FS:  00007fd641c846c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe792334000 CR3: 000000002142a000 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:3496 [inline]
 open_last_lookups fs/namei.c:3565 [inline]
 path_openat+0x1424/0x3240 fs/namei.c:3795
 do_filp_open+0x234/0x490 fs/namei.c:3825
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_open fs/open.c:1427 [inline]
 __se_sys_open fs/open.c:1423 [inline]
 __x64_sys_open+0x225/0x270 fs/open.c:1423
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fd640e7dda9
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:00007fd641c840c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fd640fac050 RCX: 00007fd640e7dda9
RDX: 0000000000000000 RSI: 0000000000060142 RDI: 0000000020000000
RBP: 00007fd640eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd640fac050 R15: 00007ffc80a37fa8
 </TASK>