loop2: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: fs/hfsplus/bnode.c:631 at hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631, CPU#0: syz.2.253/9015
Modules linked in:
CPU: 0 UID: 0 PID: 9015 Comm: syz.2.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631
Code: 02 8b 89 ee e8 80 5b 91 fe e9 cf fc ff ff e8 26 6b 2a ff 4c 89 ef e8 6e e8 3f 08 48 c7 c7 40 10 02 8b 89 ee e8 60 5b 91 fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c d6 fb ff ff
RSP: 0018:ffffc900053ef4e0 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88805ce34000 RCX: 82359a57baff7e00
RDX: ffffc90017e91000 RSI: 0000000000000d6f RDI: 0000000000000d70
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000a7de41 R12: 0000000000000000
R13: ffff88805ce340d0 R14: ffff888026d12600 R15: dffffc0000000000
FS:  00007f74fbcae6c0(0000) GS:ffff888126d03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f74f3874c00 CR3: 000000003a1c6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x746/0xaf0 fs/hfsplus/btree.c:421
 hfs_bnode_split+0xcc/0x1080 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x3b6/0xd70 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x9bb/0x10e0 fs/hfsplus/catalog.c:308
 hfsplus_mknod+0x16a/0x290 fs/hfsplus/dir.c:494
 hfsplus_mkdir+0x2c/0x40 fs/hfsplus/dir.c:529
 vfs_mkdir+0x52d/0x5d0 fs/namei.c:5130
 do_mkdirat+0x27a/0x4b0 fs/namei.c:5164
 __do_sys_mkdirat fs/namei.c:5186 [inline]
 __se_sys_mkdirat fs/namei.c:5184 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:5184
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74fda4de97
Code: 73 01 c3 48 c7 c1 a8 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74fbcade68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f74fbcadef0 RCX: 00007f74fda4de97
RDX: 00000000000001ff RSI: 0000200000000880 RDI: 00000000ffffff9c
RBP: 0000200000000980 R08: 00002000000008c0 R09: 0000000000000000
R10: 0000200000000980 R11: 0000000000000246 R12: 0000200000000880
R13: 00007f74fbcadeb0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>