syzbot

loop4: detected capacity change from 0 to 1024
------------[ cut here ]------------
kernel BUG at fs/hfsplus/bnode.c:624!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7597 Comm: syz-executor416 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:hfsplus_bnode_put+0x537/0x540 fs/hfsplus/bnode.c:624
Code: 97 8b ff e9 b2 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c f0 fe ff ff 48 89 df e8 b3 96 8b ff e9 e3 fe ff ff e8 f9 1d 3a ff <0f> 0b e8 f2 1d 3a ff 0f 0b 55 41 57 41 56 41 54 53 89 f3 49 89 fe
RSP: 0018:ffffc9000cd673a8 EFLAGS: 00010293
RAX: ffffffff8246b877 RBX: ffff88801fa75600 RCX: ffff888026c28000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1003f4ead1
R10: ffffed1003f4ead1 R11: 1ffff11003f4ead0 R12: ffff88801fa75680
R13: 1ffff920019ace88 R14: dffffc0000000000 R15: ffff88806c9c8000
FS:  0000555565f28380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5116958000 CR3: 000000001cb30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x521/0x5b0 fs/hfsplus/btree.c:414
 hfs_bnode_split+0xc9/0xee0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x38b/0xcc0 fs/hfsplus/brec.c:100
 hfsplus_rename_cat+0x513/0xdf0 fs/hfsplus/catalog.c:491
 hfsplus_link+0x357/0x700 fs/hfsplus/dir.c:323
 vfs_link+0x615/0x7c0 fs/namei.c:4599
 do_linkat+0x274/0x550 fs/namei.c:4670
 __do_sys_link fs/namei.c:4704 [inline]
 __se_sys_link fs/namei.c:4702 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4702
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa887bec319
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca5b2f328 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fa887c35858 RCX: 00007fa887bec319
RDX: 0000000000000000 RSI: 00002000000007c0 RDI: 0000200000001240
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000671 R11: 0000000000000246 R12: 0000000000080000
R13: 00007ffca5b2f3c0 R14: 0000200000000600 R15: 0000000000000003
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfsplus_bnode_put+0x537/0x540 fs/hfsplus/bnode.c:624
Code: 97 8b ff e9 b2 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c f0 fe ff ff 48 89 df e8 b3 96 8b ff e9 e3 fe ff ff e8 f9 1d 3a ff <0f> 0b e8 f2 1d 3a ff 0f 0b 55 41 57 41 56 41 54 53 89 f3 49 89 fe
RSP: 0018:ffffc9000cd673a8 EFLAGS: 00010293
RAX: ffffffff8246b877 RBX: ffff88801fa75600 RCX: ffff888026c28000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1003f4ead1
R10: ffffed1003f4ead1 R11: 1ffff11003f4ead0 R12: ffff88801fa75680
R13: 1ffff920019ace88 R14: dffffc0000000000 R15: ffff88806c9c8000
FS:  0000555565f28380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f511695b000 CR3: 000000001cb30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400