loop1: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6015 at fs/hfsplus/bnode.c:671 hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:671
Modules linked in:
CPU: 1 UID: 0 PID: 6015 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:671
Code: a1 8b 89 ee e8 40 6d 8f fe e9 cf fc ff ff e8 26 79 27 ff 4c 89 ef e8 9e 0a e4 08 48 c7 c7 00 b8 a1 8b 89 ee e8 20 6d 8f 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:ffffc9000285f500 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88810cfe4000 RCX: 39b1d18d00469c00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000285f227 R09: 1ffff9200050be44
R10: dffffc0000000000 R11: fffff5200050be45 R12: 0000000000000000
R13: ffff88810cfe40e0 R14: ffff8881096d4a00 R15: dffffc0000000000
FS:  00007f729f7746c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010ef7a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x5af/0x640 fs/hfsplus/btree.c:415
 hfs_bnode_split+0xcc/0xef0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x38f/0xcc0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x9e9/0x1000 fs/hfsplus/catalog.c:308
 hfsplus_mknod+0x16a/0x290 fs/hfsplus/dir.c:494
 vfs_mknod+0x37f/0x3c0 fs/namei.c:4235
 do_mknodat+0x385/0x4d0 fs/namei.c:-1
 __do_sys_mknod fs/namei.c:4318 [inline]
 __se_sys_mknod fs/namei.c:4316 [inline]
 __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4316
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f729e98ebe9
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:00007f729f774038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f729ebb5fa0 RCX: 00007f729e98ebe9
RDX: 0000000000000703 RSI: 0000000000002000 RDI: 00002000000009c0
RBP: 00007f729ea11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f729ebb6038 R14: 00007f729ebb5fa0 R15: 00007ffc74f53cd8
 </TASK>
