loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
1
WARNING: fs/hfsplus/bnode.c:631 at hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631, CPU#0: syz.0.0/5333
Modules linked in:
CPU: 0 UID: 0 PID: 5333 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 04/01/2014
RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:631
Code: a7 8b 89 ee e8 00 c4 82 fe e9 cf fc ff ff e8 06 c3 1d ff 4c 89 ef e8 ce 41 d8 08 48 c7 c7 00 6d a7 8b 89 ee e8 e0 c3 82 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:ffffc9000e53f2e0 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff8880380c6000 RCX: 687d88cf15ca6700
RDX: ffffc900219a3000 RSI: 0000000000000eab RDI: 0000000000000eac
RBP: 0000000000000000 R08: ffffc9000e53f067 R09: 1ffff92001ca7e0c
R10: dffffc0000000000 R11: fffff52001ca7e0d R12: 0000000000000000
R13: ffff8880380c60e0 R14: ffff888023168100 R15: dffffc0000000000
FS:  00007ff62365d6c0(0000) GS:ffff88808cf1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000101c CR3: 0000000012194000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x747/0xb00 fs/hfsplus/btree.c:421
 hfs_bnode_split+0xd4/0x1090 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x3bc/0xd70 fs/hfsplus/brec.c:100
 hfsplus_rename_cat+0x5a8/0x1000 fs/hfsplus/catalog.c:491
 hfsplus_rename+0x135/0x1f0 fs/hfsplus/dir.c:552
 vfs_rename+0xa96/0xeb0 fs/namei.c:5938
 do_renameat2+0x548/0x900 fs/namei.c:6056
 __do_sys_rename fs/namei.c:6099 [inline]
 __se_sys_rename fs/namei.c:6097 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:6097
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff62279acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff62365d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007ff622a16090 RCX: 00007ff62279acb9
RDX: 0000000000000000 RSI: 0000200000000340 RDI: 0000200000000000
RBP: 00007ff622808bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff622a16128 R14: 00007ff622a16090 R15: 00007fffe8bb4638
 </TASK>