loop8: detected capacity change from 0 to 64
hfs: new node 0 already hashed?
------------[ cut here ]------------
1
WARNING: fs/hfs/bnode.c:520 at hfs_bnode_create+0x461/0x4f0 fs/hfs/bnode.c:520, CPU#0: syz.8.253/8005
Modules linked in:
CPU: 0 UID: 0 PID: 8005 Comm: syz.8.253 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:hfs_bnode_create+0x461/0x4f0 fs/hfs/bnode.c:520
Code: 67 8b 89 ee e8 c0 b0 81 fe e9 cf fc ff ff e8 d6 d0 1e ff 4c 89 ef e8 1e 7e 79 08 48 c7 c7 60 8e 67 8b 89 ee e8 a0 b0 81 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:ffffc90005d5f2c0 EFLAGS: 00010246
RAX: 000000000000001f RBX: ffff888061c24000 RCX: e9027b8c93e6a900
RDX: ffffc90004cd2000 RSI: 0000000000000a08 RDI: 0000000000000a09
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000babe09 R12: 0000000000000000
R13: ffff888061c240d0 R14: ffff88802a446800 R15: dffffc0000000000
FS:  00007fc28c1ce6c0(0000) GS:ffff888126176000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc283f8c000 CR3: 0000000029b58000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_bmap_alloc+0x5c1/0x650 fs/hfs/btree.c:326
 hfs_bnode_split+0xd4/0x1090 fs/hfsplus/brec.c:-1
 hfs_brec_insert+0x3a1/0xc90 fs/hfs/brec.c:102
 hfs_cat_create+0x3af/0x800 fs/hfs/catalog.c:118
 hfs_create+0x75/0xe0 fs/hfs/dir.c:202
 lookup_open fs/namei.c:4511 [inline]
 open_last_lookups fs/namei.c:4611 [inline]
 path_openat+0x13b4/0x38a0 fs/namei.c:4855
 do_file_open+0x23e/0x4a0 fs/namei.c:4887
 do_sys_openat2+0x113/0x200 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_open fs/open.c:1378 [inline]
 __se_sys_open fs/open.c:1374 [inline]
 __x64_sys_open+0x11e/0x150 fs/open.c:1374
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc28df7cdd9
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:00007fc28c1ce028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fc28e1f5fa0 RCX: 00007fc28df7cdd9
RDX: 1df2a23c5997fa5f RSI: 0000000000080242 RDI: 0000200000000580
RBP: 00007fc28e012d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc28e1f6038 R14: 00007fc28e1f5fa0 R15: 00007ffdcee18b68
 </TASK>