loop3: detected capacity change from 0 to 1024
general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 0 PID: 7539 Comm: syz-executor.3 Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 fs/hfsplus/catalog.c:480
Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 d5 60 7b ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 a9 60 7b ff 48 8b
RSP: 0000:ffffc90003497720 EFLAGS: 00010202
RAX: 0000000000000008 RBX: 0000000000000040 RCX: 0000000000040000
RDX: ffff8880526e8000 RSI: 000000000001cc73 RDI: ffffc90003497840
RBP: ffffc90003497b90 R08: ffffffff827c26b4 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc9000349780c R14: ffffc900034978a0 R15: 1ffff92000692ef8
FS:  00007f151c8bb6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5e9a1c000 CR3: 000000006ab4e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hfsplus_link+0x3ab/0x800 fs/hfsplus/dir.c:323
 vfs_link+0x4f5/0x690 fs/namei.c:4605
 do_linkat+0x356/0x760 fs/namei.c:4676
 __do_sys_link fs/namei.c:4710 [inline]
 __se_sys_link fs/namei.c:4708 [inline]
 __x64_sys_link+0x86/0xa0 fs/namei.c:4708
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f151ba7dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f151c8bb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007f151bbabf80 RCX: 00007f151ba7dea9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000020000200
RBP: 00007f151baca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f151bbabf80 R15: 00007fffd7838f88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 fs/hfsplus/catalog.c:480
Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 d5 60 7b ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 a9 60 7b ff 48 8b
RSP: 0000:ffffc90003497720 EFLAGS: 00010202
RAX: 0000000000000008 RBX: 0000000000000040 RCX: 0000000000040000
RDX: ffff8880526e8000 RSI: 000000000001cc73 RDI: ffffc90003497840
RBP: ffffc90003497b90 R08: ffffffff827c26b4 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc9000349780c R14: ffffc900034978a0 R15: 1ffff92000692ef8
FS:  00007f151c8bb6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4d3f7c038 CR3: 000000006ab4e000 CR4: 00000000003506f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
   5:	48 8b 5c 24 20       	mov    0x20(%rsp),%rbx
   a:	74 05                	je     0x11
   c:	e8 d5 60 7b ff       	call   0xff7b60e6
  11:	48 8b 94 24 20 01 00 	mov    0x120(%rsp),%rdx
  18:	00
  19:	48 83 c3 40          	add    $0x40,%rbx
  1d:	48 89 d8             	mov    %rbx,%rax
  20:	48 c1 e8 03          	shr    $0x3,%rax
  24:	48 89 44 24 68       	mov    %rax,0x68(%rsp)
* 29:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2e:	48 89 54 24 08       	mov    %rdx,0x8(%rsp)
  33:	74 0d                	je     0x42
  35:	48 89 df             	mov    %rbx,%rdi
  38:	e8 a9 60 7b ff       	call   0xff7b60e6
  3d:	48                   	rex.W
  3e:	8b                   	.byte 0x8b