Kernel bug: kernel BUG in hfs_new_inode
Subsystem: hfs
Status: fixed

Crash report:
loop0: detected capacity change from 0 to 64
hfs: unable to loca[  123.243188][ T5988] hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:222!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5988 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:hfs_new_inode+0xbc4/0xbd0 fs/hfs/inode.c:222
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 15 fa ff ff 4c 89 f7 e8 0f 6f 8b ff e9 08 fa ff ff e8 b5 b7 29 ff 90 0f 0b e8 ad b7 29 ff 90 <0f> 0b e8 a5 b7 29 ff 90 0f 0b 66 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900040af848 EFLAGS: 00010293
RAX: ffffffff829555d3 RBX: ffff8880335088c8 RCX: ffff888026d23c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1005214608 R12: ffff8880290a3000
R13: 1ffff110073d90f3 R14: 0000000100000000 R15: ffff8880335088c8
FS:  00007f6c84dde6c0(0000) GS:ffff888126cc2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e263fff CR3: 000000003276a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_create+0x2a/0xe0 fs/hfs/dir.c:198
 lookup_open fs/namei.c:3796 [inline]
 open_last_lookups fs/namei.c:3895 [inline]
 path_openat+0x1500/0x3840 fs/namei.c:4131
 do_filp_open+0x1fa/0x410 fs/namei.c:4161
 do_sys_openat2+0x121/0x1c0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1463
 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: 0033:0x7f6c8576efc9
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:00007f6c84dde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6c859c5fa0 RCX: 00007f6c8576efc9
RDX: 0000000000000042 RSI: 00002000000002c0 RDI: ffffffffffffff9c
RBP: 00007f6c857f1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000058 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6c859c6038 R14: 00007f6c859c5fa0 R15: 00007fffc4216518
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_new_inode+0xbc4/0xbd0 fs/hfs/inode.c:222
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 15 fa ff ff 4c 89 f7 e8 0f 6f 8b ff e9 08 fa ff ff e8 b5 b7 29 ff 90 0f 0b e8 ad b7 29 ff 90 <0f> 0b e8 a5 b7 29 ff 90 0f 0b 66 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900040af848 EFLAGS: 00010293
RAX: ffffffff829555d3 RBX: ffff8880335088c8 RCX: ffff888026d23c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1005214608 R12: ffff8880290a3000
R13: 1ffff110073d90f3 R14: 0000000100000000 R15: ffff8880335088c8
FS:  00007f6c84dde6c0(0000) GS:ffff888126cc2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e263fff CR3: 000000003276a000 CR4: 00000000003526f0