loop3: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: fs/hfsplus/bnode.c:671 at hfsplus_bnode_create+0x461/0x4f0, CPU#1: syz.3.1594/15258
Modules linked in:
CPU: 1 UID: 0 PID: 15258 Comm: syz.3.1594 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
Code: c1 8b 89 ee e8 00 77 8b fe e9 cf fc ff ff e8 06 33 24 ff 4c 89 ef e8 1e 0e e6 08 48 c7 c7 80 e3 c1 8b 89 ee e8 e0 76 8b 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:ffffc900031e6e00 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff88803a7a4000 RCX: 6da571651e90d900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc900031e6b27 R09: 1ffff9200063cd64
R10: dffffc0000000000 R11: fffff5200063cd65 R12: 0000000000000000
R13: ffff88803a7a40e0 R14: ffff8881080a9200 R15: dffffc0000000000
FS:  00007fe941dd56c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe941db3fc8 CR3: 0000000108de2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x5af/0x640
 hfs_btree_inc_height+0xf6/0xb60
 hfsplus_brec_insert+0x12d/0xcc0
 __hfsplus_ext_write_extent+0x353/0x5b0
 __hfsplus_ext_cache_extent+0x89/0xe30
 hfsplus_file_extend+0x444/0x1990
 hfsplus_get_block+0x411/0x1530
 __block_write_begin_int+0x6b5/0x1900
 cont_write_begin+0x789/0xb50
 hfsplus_write_begin+0x66/0xb0
 generic_perform_write+0x2c5/0x900
 generic_file_write_iter+0x117/0x550
 vfs_write+0x5c9/0xb30
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe943b8ec29
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:00007fe941dd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe943dd6090 RCX: 00007fe943b8ec29
RDX: 000000000000fdec RSI: 0000200000000280 RDI: 0000000000000005
RBP: 00007fe943c11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe943dd6128 R14: 00007fe943dd6090 R15: 00007ffccc394ed8
 </TASK>
