loop4: detected capacity change from 0 to 8192
loop4: detected capacity change from 0 to 128
vfat: Unknown parameter 'msdos'
loop4: detected capacity change from 0 to 64
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:223!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6333 Comm: syz.4.67 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:hfs_new_inode+0xbc8/0xbe0 fs/hfs/inode.c:223
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 09 fa ff ff 4c 89 f7 e8 2b fb 89 ff e9 fc f9 ff ff e8 41 c4 27 ff 90 0f 0b e8 39 c4 27 ff 90 <0f> 0b e8 31 c4 27 ff 90 0f 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc9000c88f868 EFLAGS: 00010287
RAX: ffffffff8297e7f7 RBX: ffff888028701748 RCX: 0000000000080000
RDX: ffffc9000ec83000 RSI: 00000000000006d0 RDI: 00000000000006d1
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1007b3aa08 R12: ffff888028701748
R13: 1ffff110061cd8f3 R14: 0000000100000000 R15: ffff88803d9d5000
FS:  00007ff780d166c0(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7788fdc00 CR3: 0000000027358000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfs_create+0x2a/0xe0 fs/hfs/dir.c:198
 lookup_open fs/namei.c:4440 [inline]
 open_last_lookups fs/namei.c:4540 [inline]
 path_openat+0x18d1/0x3df0 fs/namei.c:4784
 do_filp_open+0x1fa/0x410 fs/namei.c:4814
 do_sys_openat2+0x121/0x200 fs/open.c:1430
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_creat fs/open.c:1514 [inline]
 __se_sys_creat fs/open.c:1508 [inline]
 __x64_sys_creat+0x8f/0xc0 fs/open.c:1508
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff782aaf749
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:00007ff780d16038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007ff782d05fa0 RCX: 00007ff782aaf749
RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000200000000180
RBP: 00007ff782b33f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff782d06038 R14: 00007ff782d05fa0 R15: 00007ffd392176a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_new_inode+0xbc8/0xbe0 fs/hfs/inode.c:223
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 09 fa ff ff 4c 89 f7 e8 2b fb 89 ff e9 fc f9 ff ff e8 41 c4 27 ff 90 0f 0b e8 39 c4 27 ff 90 <0f> 0b e8 31 c4 27 ff 90 0f 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc9000c88f868 EFLAGS: 00010287
RAX: ffffffff8297e7f7 RBX: ffff888028701748 RCX: 0000000000080000
RDX: ffffc9000ec83000 RSI: 00000000000006d0 RDI: 00000000000006d1
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1007b3aa08 R12: ffff888028701748
R13: 1ffff110061cd8f3 R14: 0000000100000000 R15: ffff88803d9d5000
FS:  00007ff780d166c0(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7788fdc00 CR3: 0000000027358000 CR4: 00000000003526f0