loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5321 at fs/hfsplus/bnode.c:630 hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:630
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:630
Code: 82 8b 89 ee e8 00 d4 89 fe e9 cf fc ff ff e8 26 56 22 ff 4c 89 ef e8 4e e8 ac 08 48 c7 c7 00 13 82 8b 89 ee e8 e0 d3 89 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:ffffc9000ed47500 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888000ba4000 RCX: e8937ab47a633b00
RDX: ffffc9000dd3a000 RSI: 0000000000003134 RDI: 0000000000003135
RBP: 0000000000000000 R08: ffffc9000ed47227 R09: 1ffff92001da8e44
R10: dffffc0000000000 R11: fffff52001da8e45 R12: 0000000000000000
R13: ffff888000ba40e0 R14: ffff88801e937800 R15: dffffc0000000000
FS:  00007fca8955b6c0(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f82236a7432 CR3: 000000003eb5f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x71a/0xad0 fs/hfsplus/btree.c:421
 hfs_bnode_split+0xcc/0x1060 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x3b6/0xd30 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x3c5/0x1120 fs/hfsplus/catalog.c:292
 hfsplus_mknod+0x16a/0x290 fs/hfsplus/dir.c:494
 vfs_create+0x24e/0x400 fs/namei.c:3493
 do_mknodat+0x3c6/0x4d0 fs/namei.c:4372
 __do_sys_mknod fs/namei.c:4405 [inline]
 __se_sys_mknod fs/namei.c:4403 [inline]
 __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4403
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca8878efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fca8955b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fca889e5fa0 RCX: 00007fca8878efc9
RDX: 0000000000000701 RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007fca88811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fca889e6038 R14: 00007fca889e5fa0 R15: 00007fffb18f6368
 </TASK>