hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 15019 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Modules linked in:
CPU: 1 UID: 0 PID: 15019 Comm: syz.3.2189 Not tainted 6.11.0-rc1-syzkaller-00233-g948752d2e010 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:hfsplus_bnode_create+0x3b6/0x440 fs/hfsplus/bnode.c:573
Code: 44 89 e6 e8 1c 48 32 09 e9 78 fd ff ff e8 72 19 13 ff 4c 89 ff e8 ca 60 3f 09 48 c7 c7 00 cd 21 8c 44 89 e6 e8 fb 47 32 09 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:ffffc900030cef58 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88801f44ca00 RCX: 09676ece1d86f100
RDX: ffffc9001b07c000 RSI: 00000000000126aa RDI: 00000000000126ab
RBP: 0000000000000000 R08: ffffffff8173dfac R09: 1ffff92000619d8c
R10: dffffc0000000000 R11: fffff52000619d8d R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802d30a000 R15: ffff88802d30a0e0
FS:  00007f5f259b46c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31f08ff8 CR3: 00000000651be000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x59a/0x640 fs/hfsplus/btree.c:415
 hfs_bnode_split+0xde/0x1110 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x3a6/0xde0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x49f/0x1b70 fs/hfsplus/catalog.c:292
 hfsplus_fill_super+0x13ee/0x1ca0 fs/hfsplus/super.c:566
 mount_bdev+0x20c/0x2d0 fs/super.c:1679
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:662
 vfs_get_tree+0x92/0x2a0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 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: 0033:0x7f5f24b790fa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f5f259b3e78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5f259b3f00 RCX: 00007f5f24b790fa
RDX: 0000000020000000 RSI: 0000000020000080 RDI: 00007f5f259b3ec0
RBP: 0000000020000000 R08: 00007f5f259b3f00 R09: 0000000002000010
R10: 0000000002000010 R11: 0000000000000202 R12: 0000000020000080
R13: 00007f5f259b3ec0 R14: 00000000000006a8 R15: 00000000200013c0
 </TASK>