loop0: detected capacity change from 0 to 1024 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] CPU: 1 PID: 4430 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:hfsplus_rename_cat+0x3ab/0xdf0 fs/hfsplus/catalog.c:480 Code: 0f b7 84 24 40 01 00 00 66 89 44 24 08 48 8b 9c 24 e0 00 00 00 48 8b 44 24 18 4c 8d 70 40 4c 89 f0 48 c1 e8 03 48 89 44 24 40 <42> 80 3c 20 00 74 08 4c 89 f7 e8 66 1f 8c ff 4c 89 74 24 48 45 8b RSP: 0018:ffffc90003377820 EFLAGS: 00010202 RAX: 0000000000000008 RBX: ffff88805b85c000 RCX: ffff888018578000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003377c50 R08: dffffc0000000000 R09: fffff5200066ef4b R10: 0000000000000000 R11: 0000000000000018 R12: dffffc0000000000 R13: 1ffff9200066ef10 R14: 0000000000000040 R15: 0000000000000000 FS: 00005555756fc500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc111d000 CR3: 00000000275ff000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_unlink+0x2d4/0x760 fs/hfsplus/dir.c:376 vfs_unlink+0x385/0x600 fs/namei.c:4322 do_unlinkat+0x324/0x560 fs/namei.c:4390 __do_sys_unlink fs/namei.c:4438 [inline] __se_sys_unlink fs/namei.c:4436 [inline] __x64_sys_unlink+0x45/0x50 fs/namei.c:4436 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: 0033:0x7faa8af8eec9 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:00007ffcc111c5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007faa8b1e5fa0 RCX: 00007faa8af8eec9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000000c0 RBP: 00007faa8b011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faa8b1e5fa0 R14: 00007faa8b1e5fa0 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfsplus_rename_cat+0x3ab/0xdf0 fs/hfsplus/catalog.c:480 Code: 0f b7 84 24 40 01 00 00 66 89 44 24 08 48 8b 9c 24 e0 00 00 00 48 8b 44 24 18 4c 8d 70 40 4c 89 f0 48 c1 e8 03 48 89 44 24 40 <42> 80 3c 20 00 74 08 4c 89 f7 e8 66 1f 8c ff 4c 89 74 24 48 45 8b RSP: 0018:ffffc90003377820 EFLAGS: 00010202 RAX: 0000000000000008 RBX: ffff88805b85c000 RCX: ffff888018578000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003377c50 R08: dffffc0000000000 R09: fffff5200066ef4b R10: 0000000000000000 R11: 0000000000000018 R12: dffffc0000000000 R13: 1ffff9200066ef10 R14: 0000000000000040 R15: 0000000000000000 FS: 00005555756fc500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbab9150000 CR3: 00000000275ff000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f b7 84 24 40 01 00 movzwl 0x140(%rsp),%eax 7: 00 8: 66 89 44 24 08 mov %ax,0x8(%rsp) d: 48 8b 9c 24 e0 00 00 mov 0xe0(%rsp),%rbx 14: 00 15: 48 8b 44 24 18 mov 0x18(%rsp),%rax 1a: 4c 8d 70 40 lea 0x40(%rax),%r14 1e: 4c 89 f0 mov %r14,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 48 89 44 24 40 mov %rax,0x40(%rsp) * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 66 1f 8c ff call 0xff8c1f9f 39: 4c 89 74 24 48 mov %r14,0x48(%rsp) 3e: 45 rex.RB 3f: 8b .byte 0x8b