# lua_8972.sys-lua_9168.sys Diff # TOC * [Visual Chart Diff](#visual-chart-diff) * [Metadata](#metadata) * [Ghidra Diff Engine](#ghidra-diff-engine) * [Command Line](#command-line) * [Binary Metadata Diff](#binary-metadata-diff) * [Program Options](#program-options) * [Diff Stats](#diff-stats) * [Strings](#strings) * [Deleted](#deleted) * [Added](#added) * [Feature_285200698__private_IsEnabledDeviceUsageNoInline](#feature_285200698__private_isenableddeviceusagenoinline) * [Feature_285200698__private_IsEnabledFallback](#feature_285200698__private_isenabledfallback) * [Modified](#modified) * [UpdateTableNode](#updatetablenode) * [Modified (No Code Changes)](#modified-no-code-changes) * [RemoveFileIdTableNode](#removefileidtablenode) * [wil_details_IsEnabledFallback](#wil_details_isenabledfallback) * [NTOSKRNL.EXE::ExAllocatePool2](#ntoskrnlexeexallocatepool2) * [LuafvAllocatePool](#luafvallocatepool) # Visual Chart Diff ```mermaid flowchart LR UpdateTableNode-4-old<--Match 27%-->UpdateTableNode-4-new subgraph lua_9168.sys UpdateTableNode-4-new subgraph Added direction LR Feature_285200698__private_IsEnabledDeviceUsageNoInline Feature_285200698__private_IsEnabledFallback end end subgraph lua_8972.sys UpdateTableNode-4-old end ``` ```mermaid pie showData title Function Matches - 99.7868% "unmatched_funcs_len" : 2 "matched_funcs_len" : 936 ``` ```mermaid pie showData title Matched Function Similarity - 99.4658% "matched_funcs_with_code_changes_len" : 1 "matched_funcs_with_non_code_changes_len" : 4 "matched_funcs_no_changes_len" : 931 ``` # Metadata ## Ghidra Diff Engine ### Command Line #### Captured Command Line ``` ghidriff --project-location ghidra_projects --project-name ghidriff --symbols-path symbols --gzfs-path gzfs --threaded --log-level INFO --file-log-level INFO --log-path ghidriff.log --min-func-len 10 --gdt [] --bsim --max-ram-percent 60.0 --max-section-funcs 200 lua_8972.sys lua_9168.sys ``` #### Verbose Args

``` --old ['lua_8972.sys'] --new [['lua_9168.sys']] --engine VersionTrackingDiff --output-path lua_out --summary False --project-location ghidra_projects --project-name ghidriff --symbols-path symbols --gzfs-path gzfs --base-address None --program-options None --threaded True --force-analysis False --force-diff False --no-symbols False --log-level INFO --file-log-level INFO --log-path ghidriff.log --va False --min-func-len 10 --use-calling-counts False --gdt [] --bsim True --bsim-full False --max-ram-percent 60.0 --print-flags False --jvm-args None --side-by-side False --max-section-funcs 200 --md-title None ```

#### Download Original PEs ``` wget https://msdl.microsoft.com/download/symbols/luafv.sys/AE86B6DE34000/luafv.sys -O luafv.sys.x64.10.0.26100.8972 wget https://msdl.microsoft.com/download/symbols/luafv.sys/CFF309E634000/luafv.sys -O luafv.sys.x64.10.0.26100.9168 ``` ## Binary Metadata Diff ```diff --- lua_8972.sys Meta +++ lua_9168.sys Meta @@ -1,44 +1,44 @@ -Program Name: lua_8972.sys +Program Name: lua_9168.sys Language ID: x86:LE:64:default (4.6) Compiler ID: windows Processor: x86 Endian: Little Address Size: 64 Minimum Address: 140000000 Maximum Address: ff0000184f -# of Bytes: 216136 +# of Bytes: 216144 # of Memory Blocks: 15 -# of Instructions: 26229 -# of Defined Data: 2285 -# of Functions: 468 -# of Symbols: 4158 +# of Instructions: 26235 +# of Defined Data: 2293 +# of Functions: 470 +# of Symbols: 4168 # of Data Types: 136 # of Data Type Categories: 11 Analyzed: true Compiler: visualstudio:unknown Created With Ghidra Version: 12.0.4 -Date Created: Fri Aug 21 23:22:23 SGT 2026 +Date Created: Fri Aug 21 23:22:27 SGT 2026 Executable Format: Portable Executable (PE) -Executable Location: /tmp/luafv/lua_8972.sys -Executable MD5: 8eb1eca2c81086de25571ada20c4d86c -Executable SHA256: d0d5b2ebc6f13ade30cf326a11b4a5cdae61c4c8c69e22dc7becc5498a3e2560 -FSRL: file:///tmp/luafv/lua_8972.sys?MD5=8eb1eca2c81086de25571ada20c4d86c +Executable Location: /tmp/luafv/lua_9168.sys +Executable MD5: 6a8e9b4b62fe108f5f1e4d2a5f14a6e5 +Executable SHA256: ad892825ec54bb5e431e5b1626a98767949c8ed86c50b752b9799ec520d3e96e +FSRL: file:///tmp/luafv/lua_9168.sys?MD5=6a8e9b4b62fe108f5f1e4d2a5f14a6e5 PDB Age: 1 PDB File: luafv.pdb -PDB GUID: 0bdfda96-0af8-4fee-4a95-078f5fb3ffea +PDB GUID: 79294690-c03d-3843-866a-8a9df75524b5 PDB Loaded: true PDB Version: RSDS PE Property[CompanyName]: Microsoft Corporation PE Property[FileDescription]: LUA File Virtualization Filter Driver -PE Property[FileVersion]: 10.0.26100.8972 (WinBuild.160101.0800) +PE Property[FileVersion]: 10.0.26100.9168 (WinBuild.160101.0800) PE Property[InternalName]: luafv.sys PE Property[LegalCopyright]: © Microsoft Corporation. All rights reserved. PE Property[OriginalFilename]: luafv.sys PE Property[ProductName]: Microsoft® Windows® Operating System -PE Property[ProductVersion]: 10.0.26100.8972 +PE Property[ProductVersion]: 10.0.26100.9168 PE Property[Translation]: 4b00409 Preferred Root Namespace Category: RTTI Found: false Relocatable: true SectionAlignment: 4096 Should Ask To Analyze: false ``` ## Program Options

Ghidra lua_8972.sys Decompiler Options

Ghidra lua_8972.sys Specification extensions Options

|Specification extensions Option|Value| | :---: | :---: | |FormatVersion|0| |VersionCounter|0|

Ghidra lua_8972.sys Analyzers Options

|Analyzers Option|Value| | :---: | :---: | |ASCII Strings|true| |ASCII Strings.Create Strings Containing Existing Strings|true| |ASCII Strings.Create Strings Containing References|true| |ASCII Strings.Force Model Reload|false| |ASCII Strings.Minimum String Length|LEN_5| |ASCII Strings.Model File|StringModel.sng| |ASCII Strings.Require Null Termination for String|true| |ASCII Strings.Search Only in Accessible Memory Blocks|true| |ASCII Strings.String Start Alignment|ALIGN_1| |ASCII Strings.String end alignment|4| |Aggressive Instruction Finder|false| |Aggressive Instruction Finder.Create Analysis Bookmarks|true| |Apply Data Archives|true| |Apply Data Archives.Archive Chooser|[Auto-Detect]| |Apply Data Archives.Create Analysis Bookmarks|true| |Apply Data Archives.GDT User File Archive Path|None| |Apply Data Archives.User Project Archive Path|None| |Call Convention ID|true| |Call Convention ID.Analysis Decompiler Timeout (sec)|60| |Call-Fixup Installer|true| |Condense Filler Bytes|false| |Condense Filler Bytes.Filler Value|Auto| |Condense Filler Bytes.Minimum number of sequential bytes|1| |Create Address Tables|true| |Create Address Tables.Allow Offcut References|false| |Create Address Tables.Auto Label Table|false| |Create Address Tables.Create Analysis Bookmarks|true| |Create Address Tables.Maxmimum Pointer Distance|16777215| |Create Address Tables.Minimum Pointer Address|4132| |Create Address Tables.Minimum Table Size|2| |Create Address Tables.Pointer Alignment|1| |Create Address Tables.Relocation Table Guide|true| |Create Address Tables.Table Alignment|4| |Data Reference|true| |Data Reference.Address Table Alignment|1| |Data Reference.Address Table Minimum Size|2| |Data Reference.Align End of Strings|false| |Data Reference.Ascii String References|true| |Data Reference.Create Address Tables|true| |Data Reference.Minimum String Length|5| |Data Reference.References to Pointers|true| |Data Reference.Relocation Table Guide|true| |Data Reference.Respect Execute Flag|true| |Data Reference.Subroutine References|true| |Data Reference.Switch Table References|false| |Data Reference.Unicode String References|true| |Decompiler Parameter ID|true| |Decompiler Parameter ID.Analysis Clear Level|ANALYSIS| |Decompiler Parameter ID.Analysis Decompiler Timeout (sec)|60| |Decompiler Parameter ID.Commit Data Types|true| |Decompiler Parameter ID.Commit Void Return Values|false| |Decompiler Parameter ID.Prototype Evaluation|__fastcall| |Decompiler Switch Analysis|true| |Decompiler Switch Analysis.Analysis Decompiler Timeout (sec)|60| |Demangler Microsoft|true| |Demangler Microsoft.Apply Function Calling Conventions|true| |Demangler Microsoft.Apply Function Signatures|true| |Demangler Microsoft.C-Style Symbol Interpretation|FUNCTION_IF_EXISTS| |Demangler Microsoft.Demangle Only Known Mangled Symbols|false| |Disassemble Entry Points|true| |Disassemble Entry Points.Respect Execute Flag|true| |Embedded Media|true| |Embedded Media.Create Analysis Bookmarks|true| |External Entry References|true| |Function ID|true| |Function ID.Always Apply FID Labels|false| |Function ID.Create Analysis Bookmarks|true| |Function ID.Instruction Count Threshold|14.6| |Function ID.Multiple Match Threshold|30.0| |Function Start Search|true| |Function Start Search.Bookmark Functions|false| |Function Start Search.Search Data Blocks|false| |Non-Returning Functions - Discovered|true| |Non-Returning Functions - Discovered.Create Analysis Bookmarks|true| |Non-Returning Functions - Discovered.Function Non-return Threshold|3| |Non-Returning Functions - Discovered.Repair Flow Damage|true| |Non-Returning Functions - Known|true| |Non-Returning Functions - Known.Create Analysis Bookmarks|true| |PDB MSDIA|false| |PDB MSDIA.Search untrusted symbol servers|false| |PDB Universal|true| |PDB Universal.Import Source Line Info|true| |PDB Universal.Search untrusted symbol servers|false| |Reference|true| |Reference.Address Table Alignment|1| |Reference.Address Table Minimum Size|2| |Reference.Align End of Strings|false| |Reference.Ascii String References|true| |Reference.Create Address Tables|true| |Reference.Minimum String Length|5| |Reference.References to Pointers|true| |Reference.Relocation Table Guide|true| |Reference.Respect Execute Flag|true| |Reference.Subroutine References|true| |Reference.Switch Table References|false| |Reference.Unicode String References|true| |Scalar Operand References|true| |Scalar Operand References.Relocation Table Guide|true| |Shared Return Calls|true| |Shared Return Calls.Allow Conditional Jumps|false| |Shared Return Calls.Assume Contiguous Functions Only|true| |Stack|true| |Stack.Create Local Variables|true| |Stack.Create Param Variables|false| |Stack.Max Threads|2| |Subroutine References|true| |Subroutine References.Create Thunks Early|true| |Variadic Function Signature Override|false| |Variadic Function Signature Override.Create Analysis Bookmarks|false| |Windows x86 PE Exception Handling|true| |Windows x86 PE RTTI Analyzer|true| |Windows x86 Thread Environment Block (TEB) Analyzer|true| |Windows x86 Thread Environment Block (TEB) Analyzer.Starting Address of the TEB|| |Windows x86 Thread Environment Block (TEB) Analyzer.Windows OS Version|Windows 7| |WindowsPE x86 Propagate External Parameters|false| |WindowsResourceReference|true| |WindowsResourceReference.Create Analysis Bookmarks|true| |x86 Constant Reference Analyzer|true| |x86 Constant Reference Analyzer.Create Data from pointer|false| |x86 Constant Reference Analyzer.Function parameter/return Pointer analysis|true| |x86 Constant Reference Analyzer.Max Threads|2| |x86 Constant Reference Analyzer.Min absolute reference|4| |x86 Constant Reference Analyzer.Require pointer param data type|false| |x86 Constant Reference Analyzer.Speculative reference max|256| |x86 Constant Reference Analyzer.Speculative reference min|1024| |x86 Constant Reference Analyzer.Stored Value Pointer analysis|true| |x86 Constant Reference Analyzer.Trust values read from writable memory|true|

Ghidra lua_9168.sys Decompiler Options

Ghidra lua_9168.sys Specification extensions Options

|Specification extensions Option|Value| | :---: | :---: | |FormatVersion|0| |VersionCounter|0|

Ghidra lua_9168.sys Analyzers Options

## Diff Stats |Stat|Value| | :---: | :---: | |added_funcs_len|2| |deleted_funcs_len|0| |modified_funcs_len|5| |added_symbols_len|3| |deleted_symbols_len|0| |diff_time|2.686414957046509| |deleted_strings_len|0| |added_strings_len|0| |match_types|Counter({'SymbolsHash': 467, 'ExternalsName': 177})| |items_to_process|10| |diff_types|Counter({'refcount': 4, 'calling': 3, 'address': 2, 'code': 1, 'length': 1, 'called': 1})| |unmatched_funcs_len|2| |total_funcs_len|938| |matched_funcs_len|936| |matched_funcs_with_code_changes_len|1| |matched_funcs_with_non_code_changes_len|4| |matched_funcs_no_changes_len|931| |match_func_similarity_percent|99.4658%| |func_match_overall_percent|99.7868%| |first_matches|Counter({'SymbolsHash': 467})| ```mermaid pie showData title All Matches "SymbolsHash" : 467 "ExternalsName" : 177 ``` ```mermaid pie showData title First Matches "SymbolsHash" : 467 ``` ```mermaid pie showData title Diff Stats "added_funcs_len" : 2 "deleted_funcs_len" : 0 "modified_funcs_len" : 5 ``` ```mermaid pie showData title Symbols "added_symbols_len" : 3 "deleted_symbols_len" : 0 ``` ## Strings *No string differences found* # Deleted # Added ## Feature_285200698__private_IsEnabledDeviceUsageNoInline ### Function Meta |Key|lua_9168.sys| | :---: | :---: | |name|Feature_285200698__private_IsEnabledDeviceUsageNoInline| |fullname|Feature_285200698__private_IsEnabledDeviceUsageNoInline| |refcount|3| |length|49| |called|Feature_285200698__private_IsEnabledFallback| |calling|UpdateTableNode| |paramcount|0| |address|140002d00| |sig|ulonglong __fastcall Feature_285200698__private_IsEnabledDeviceUsageNoInline(void)| |sym_type|Function| |sym_source|IMPORTED| |external|False| ```diff --- Feature_285200698__private_IsEnabledDeviceUsageNoInline +++ Feature_285200698__private_IsEnabledDeviceUsageNoInline @@ -0,0 +1,17 @@ + +ulonglong Feature_285200698__private_IsEnabledDeviceUsageNoInline(void) + +{ + ulonglong uVar1; + undefined8 local_res8; + + local_res8 = (ulonglong)Feature_285200698__private_featureState; + if ((Feature_285200698__private_featureState & 0x10) == 0) { + uVar1 = Feature_285200698__private_IsEnabledFallback(local_res8,3); + } + else { + uVar1 = (ulonglong)(Feature_285200698__private_featureState & 1); + } + return uVar1; +} + ``` ## Feature_285200698__private_IsEnabledFallback ### Function Meta |Key|lua_9168.sys| | :---: | :---: | |name|Feature_285200698__private_IsEnabledFallback| |fullname|Feature_285200698__private_IsEnabledFallback| |refcount|2| |length|21| |called|wil_details_IsEnabledFallback| |calling|Feature_285200698__private_IsEnabledDeviceUsageNoInline| |paramcount|2| |address|140002d38| |sig|undefined __fastcall Feature_285200698__private_IsEnabledFallback(ulonglong param_1, int param_2)| |sym_type|Function| |sym_source|IMPORTED| |external|False| ```diff --- Feature_285200698__private_IsEnabledFallback +++ Feature_285200698__private_IsEnabledFallback @@ -0,0 +1,8 @@ + +void Feature_285200698__private_IsEnabledFallback(ulonglong param_1,int param_2) + +{ + wil_details_IsEnabledFallback(param_1,param_2,&Feature_285200698__private_descriptor); + return; +} + ``` # Modified *Modified functions contain code changes* ## UpdateTableNode ### Match Info |Key|lua_8972.sys - lua_9168.sys| | :---: | :---: | |diff_type|code,length,called| |ratio|0.72| |i_ratio|0.26| |m_ratio|0.98| |b_ratio|0.27| |match_types|SymbolsHash| ### Function Meta Diff |Key|lua_8972.sys|lua_9168.sys| | :---: | :---: | :---: | |name|UpdateTableNode|UpdateTableNode| |fullname|UpdateTableNode|UpdateTableNode| |refcount|6|6| |`length`|1700|1564| |`called`|

Expand for full list:
FLTMGR.SYS::FltAcquirePushLockExclusiveEx
FLTMGR.SYS::FltReleasePushLockEx
GetFileInformation
GetVolumeRootFileId
InsertFileIdTableNode
LuafvDeleteElementTable
LuafvFreePool
LuafvInsertElementTable
LuafvIsExcludedName
LuafvLookupElementTableFull
NTOSKRNL.EXE::ExAllocatePool2

NTOSKRNL.EXE::RtlCompareUnicodeString
NTOSKRNL.EXE::RtlCopyUnicodeString
RemoveFileIdTableNode
ResolveTableNodeConflict
__security_check_cookie
memset

Expand for full list:
FLTMGR.SYS::FltAcquirePushLockExclusiveEx
FLTMGR.SYS::FltReleasePushLockEx
Feature_285200698__private_IsEnabledDeviceUsageNoInline
GetFileInformation
GetVolumeRootFileId
InsertFileIdTableNode
LuafvAllocatePool
LuafvDeleteElementTable
LuafvFreePool
LuafvInsertElementTable
LuafvIsExcludedName

LuafvLookupElementTableFull
NTOSKRNL.EXE::RtlCompareUnicodeString
NTOSKRNL.EXE::RtlCopyUnicodeString
RemoveFileIdTableNode
ResolveTableNodeConflict
__security_check_cookie
memset

| |calling|CreateTableNode
LuafvFindTableNode
LuafvInitializeFileTableForVolume|CreateTableNode
LuafvFindTableNode
LuafvInitializeFileTableForVolume| |paramcount|4|4| |address|140019ad0|140019ad0| |sig|longlong __fastcall UpdateTableNode(longlong param_1, uint * param_2, ulonglong * param_3, undefined8 param_4)|longlong __fastcall UpdateTableNode(longlong param_1, uint * param_2, ulonglong * param_3, undefined8 param_4)| |sym_type|Function|Function| |sym_source|IMPORTED|IMPORTED| |external|False|False| ### UpdateTableNode Called Diff ```diff --- UpdateTableNode called +++ UpdateTableNode called @@ -2,0 +3 @@ +Feature_285200698__private_IsEnabledDeviceUsageNoInline @@ -5,0 +7 @@ +LuafvAllocatePool @@ -11 +12,0 @@ -NTOSKRNL.EXE::ExAllocatePool2 ``` ### UpdateTableNode Diff ```diff --- UpdateTableNode +++ UpdateTableNode @@ -1,261 +1,254 @@ /* WARNING: Function: __security_check_cookie replaced with injection: security_check_cookie */ longlong UpdateTableNode(longlong param_1,uint *param_2,ulonglong *param_3,undefined8 param_4) { longlong lVar1; ushort uVar2; int iVar3; ulonglong uVar4; longlong lVar5; uint *puVar6; longlong lVar7; uint uVar8; longlong lVar9; uint *puVar10; longlong lVar11; bool bVar12; bool bVar13; undefined4 uVar14; undefined4 uVar15; undefined1 auStackY_1a8 [32]; - undefined1 local_168 [4]; + undefined1 local_167 [3]; uint local_164; undefined4 local_160 [2]; uint *local_158; undefined8 local_150; undefined8 uStack_148; int local_140; - undefined8 local_138; - undefined8 uStack_130; - longlong *local_128; - longlong local_120 [2]; + uint *local_138; + undefined8 local_130; + undefined8 uStack_128; + longlong *local_120; + ulonglong local_118; undefined8 uStack_110; undefined4 local_108; undefined4 uStack_104; uint *local_100; uint local_f8 [24]; undefined8 local_98 [10]; ulonglong local_48; local_48 = __security_cookie ^ (ulonglong)auStackY_1a8; local_158 = (uint *)0x0; - local_168[0] = 0; + local_167[0] = 0; local_108 = 0; - local_138 = 0; - uStack_130 = (uint *)0x0; + local_130 = 0; + uStack_128 = (uint *)0x0; local_150 = 0; uStack_148 = 0; - local_120[1] = 0; + local_118 = 0; uStack_110 = 0; local_100 = param_2; memset(local_f8,0,0xb0); - lVar5 = param_1 + 0x50; + lVar11 = param_1 + 0x80; lVar1 = *(longlong *)(param_1 + 0x20); - lVar11 = param_1 + 0x80; if (*(int *)(param_1 + 0x100) == 2) { uVar4 = GetVolumeRootFileId(param_1,local_98); if ((int)uVar4 < 0) { return param_1; } puVar10 = local_f8; local_158 = puVar10; } else { puVar10 = (uint *)0x0; puVar6 = local_158; if (((((*(byte *)(lVar1 + 0x1e) & 1) != 0) && (puVar10 = (uint *)0x0, (*(uint *)(lVar1 + 0x18) & 0x410) == 0x10)) && (puVar10 = param_2, puVar6 = param_2, param_2 == (uint *)0x0)) && - (uVar4 = GetFileInformation(lVar1,lVar5,local_f8,param_4,&local_158,0,param_3), + (uVar4 = GetFileInformation(lVar1,param_1 + 0x50,local_f8,param_4,&local_158,0,param_3), puVar10 = local_158, puVar6 = local_158, (int)uVar4 < 0)) { return param_1; } local_158 = puVar6; if (puVar10 == (uint *)0x0) { if ((*(byte *)(param_1 + 0x1e) & 0x10) != 0) { - RemoveFileIdTableNode(param_1); + uVar4 = Feature_285200698__private_IsEnabledDeviceUsageNoInline(); + if ((int)uVar4 == 0) { + RemoveFileIdTableNode(param_1); + } + else { + FltAcquirePushLockExclusiveEx(&DAT_0,0); + RemoveFileIdTableNode(param_1); + FltReleasePushLockEx(&DAT_0,0); + } } uVar2 = *(ushort *)(param_1 + 0x1e); if ((uVar2 & 8) != 0) { LuafvDeleteElementTable(*(longlong *)(lVar1 + 0x28),param_1 + 0x60); uVar2 = *(ushort *)(param_1 + 0x1e) & 0xfff7; } *(undefined4 *)(param_1 + 0x18) = 0; *(ushort *)(param_1 + 0x1e) = uVar2 & 0xff7e; return param_1; } } if (*(uint *)(param_1 + 0x100) < 3) { uVar8 = *(uint *)(param_1 + 0x18); } else { + local_130._0_4_ = CONCAT22((short)puVar10[0xf],(short)puVar10[0xf]); bVar13 = true; - local_138._0_4_ = CONCAT22((short)puVar10[0xf],(short)puVar10[0xf]); - uStack_130 = puVar10 + 0x1a; + uStack_128 = puVar10 + 0x1a; local_150._0_4_ = CONCAT22((short)(char)puVar10[0x11],(short)(char)puVar10[0x11]); uStack_148 = (longlong)puVar10 + 0x46; local_164 = puVar10[0xe]; - local_140 = RtlCompareUnicodeString(&local_138,lVar5,1); + local_140 = RtlCompareUnicodeString(&local_130,param_1 + 0x50,1); bVar12 = local_140 != 0; if ((ushort)local_150 == 0) { bVar13 = false; } else if ((*(byte *)(param_1 + 0x1e) & 8) != 0) { iVar3 = RtlCompareUnicodeString(lVar11,&local_150,1); bVar13 = iVar3 != 0; } if (local_140 == 0) { if (bVar13) { uVar14 = (undefined4)local_150; uVar15 = local_150._4_4_; local_108 = (undefined4)uStack_148; uStack_104 = uStack_148._4_4_; - goto LAB_0; - } - local_128 = (longlong *)(lVar1 + 0x28); + goto LAB_1; + } + local_120 = (longlong *)(lVar1 + 0x28); } else { - uVar14 = (undefined4)local_138; - uVar15 = local_138._4_4_; - local_108 = (undefined4)uStack_130; - uStack_104 = uStack_130._4_4_; -LAB_0: - local_128 = (longlong *)(lVar1 + 0x28); - local_120[0] = 0; + uVar14 = (undefined4)local_130; + uVar15 = local_130._4_4_; + local_108 = (undefined4)uStack_128; + uStack_104 = uStack_128._4_4_; +LAB_1: + local_120 = (longlong *)(lVar1 + 0x28); + local_138 = (uint *)0x0; local_160[0] = 0; uStack_110 = CONCAT44(uVar15,uVar14); lVar5 = LuafvLookupElementTableFull - ((longlong *)*local_128,(ulonglong *)(local_120 + 1),local_120,local_160); - if (lVar5 == 0) { - lVar5 = param_1 + 0x50; - } - else { + ((longlong *)*local_120,&local_118,(longlong *)&local_138,local_160); + if (lVar5 != 0) { lVar5 = lVar5 - ((ulonglong)(-(uint)((*(byte *)(lVar5 + 0x18) & 7) != 0) & 0x30) + 0x30); if (*(void **)(lVar5 + 8) == SystemReserved1[0xf]) { *(int *)(lVar5 + 0x10) = *(int *)(lVar5 + 0x10) + 1; } else { FltAcquirePushLockExclusiveEx(lVar5); *(void **)(lVar5 + 8) = SystemReserved1[0xf]; *(undefined4 *)(lVar5 + 0x10) = 1; } lVar7 = lVar5; lVar9 = param_1; if (local_140 == 0) { lVar7 = param_1; lVar9 = lVar5; } - lVar7 = ResolveTableNodeConflict(lVar7,lVar9); - if (lVar7 == param_1) { - lVar5 = param_1 + 0x50; - puVar10 = local_158; - } - else { - lVar5 = lVar7 + 0x50; + lVar5 = ResolveTableNodeConflict(lVar7,lVar9); + puVar10 = local_158; + if (lVar5 != param_1) { bVar13 = true; - lVar11 = lVar7 + 0x80; - iVar3 = RtlCompareUnicodeString(&local_138,lVar5,1); + lVar11 = lVar5 + 0x80; + iVar3 = RtlCompareUnicodeString(&local_130,lVar5 + 0x50,1); bVar12 = iVar3 != 0; if ((ushort)local_150 == 0) { bVar13 = false; } - else if ((*(byte *)(lVar7 + 0x1e) & 8) != 0) { + else if ((*(byte *)(lVar5 + 0x1e) & 8) != 0) { iVar3 = RtlCompareUnicodeString(lVar11,&local_150,1); bVar13 = iVar3 != 0; } - *(ushort *)(lVar7 + 0x1e) = *(ushort *)(lVar7 + 0x1e) | 0x80; - param_1 = lVar7; + *(ushort *)(lVar5 + 0x1e) = *(ushort *)(lVar5 + 0x1e) | 0x80; + param_1 = lVar5; puVar10 = local_158; } } } if (((*(byte *)(param_1 + 0x1e) & 8) != 0) && ((bVar13 || ((ushort)local_150 == 0)))) { LuafvDeleteElementTable(*(longlong *)(lVar1 + 0x28),param_1 + 0x60); *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) & 0xfff7; } if (bVar12) { - uVar2 = (ushort)local_138; - if (((ushort)local_138 + 8 < 8) || - (puVar6 = (uint *)ExAllocatePool2(0x100,(ushort)local_138 + 8,0x6661754c), - puVar6 == (uint *)0x0)) goto LAB_1; - *puVar6 = (uint)uVar2; - *(undefined1 *)(puVar6 + 1) = 0xff; - FltAcquirePushLockExclusiveEx(&PoolLock,0); - DAT_2 = DAT_2 + (uint)uVar2; - FltReleasePushLockEx(&PoolLock,0); - if (puVar6 + 2 == (uint *)0x0) goto LAB_1; - LuafvDeleteElementTable(*local_128,param_1 + 0x30); + local_138 = LuafvAllocatePool(1,(uint)(ushort)local_130,'\x12'); + if (local_138 == (uint *)0x0) goto LAB_2; + LuafvDeleteElementTable(*local_120,param_1 + 0x30); FltAcquirePushLockExclusiveEx(&DAT_3,0); if ((*(byte *)(param_1 + 0x1e) & 0x20) != 0) { LuafvFreePool(*(longlong *)(param_1 + 0x58)); *(undefined8 *)(param_1 + 0x58) = 0; *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) & 0xffdf; } - *(ushort *)(param_1 + 0x52) = (ushort)local_138; - *(uint **)(param_1 + 0x58) = puVar6 + 2; - RtlCopyUnicodeString(param_1 + 0x50,&local_138); + *(ushort *)(param_1 + 0x52) = (ushort)local_130; + *(uint **)(param_1 + 0x58) = local_138; + RtlCopyUnicodeString(param_1 + 0x50,&local_130); FltReleasePushLockEx(&DAT_3,0); LuafvInsertElementTable - (*(longlong **)(lVar1 + 0x28),(longlong *)(param_1 + 0x30),(longlong)local_168); + (*(longlong **)(lVar1 + 0x28),(longlong *)(param_1 + 0x30),(longlong)local_167); *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) | 0x20; - uVar4 = LuafvIsExcludedName((ushort *)&local_138); + uVar4 = LuafvIsExcludedName((ushort *)&local_130); *(byte *)(param_1 + 0x1d) = (*(byte *)(param_1 + 0x1d) ^ (byte)uVar4) & 1 ^ *(byte *)(param_1 + 0x1d); } else { - RtlCopyUnicodeString(lVar5,&local_138); + RtlCopyUnicodeString(param_1 + 0x50,&local_130); } if (bVar13) { - uVar2 = (ushort)local_150; - if (((ushort)local_150 + 8 < 8) || - (puVar6 = (uint *)ExAllocatePool2(0x100,(ushort)local_150 + 8,0x6661754c), - puVar6 == (uint *)0x0)) goto LAB_1; - *puVar6 = (uint)uVar2; - *(undefined1 *)(puVar6 + 1) = 0xff; - FltAcquirePushLockExclusiveEx(&PoolLock,0); - DAT_2 = DAT_2 + (uint)uVar2; - FltReleasePushLockEx(&PoolLock,0); - if (puVar6 + 2 == (uint *)0x0) goto LAB_1; + puVar6 = LuafvAllocatePool(1,(uint)(ushort)local_150,'\x12'); + if (puVar6 == (uint *)0x0) goto LAB_2; if ((*(byte *)(param_1 + 0x1e) & 0x40) != 0) { LuafvFreePool(*(longlong *)(lVar11 + 8)); *(undefined8 *)(lVar11 + 8) = 0; *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) & 0xffbf; } *(ushort *)(lVar11 + 2) = (ushort)local_150; - *(uint **)(lVar11 + 8) = puVar6 + 2; + *(uint **)(lVar11 + 8) = puVar6; RtlCopyUnicodeString(lVar11,&local_150); LuafvInsertElementTable - (*(longlong **)(lVar1 + 0x28),(longlong *)(param_1 + 0x60),(longlong)local_168); + (*(longlong **)(lVar1 + 0x28),(longlong *)(param_1 + 0x60),(longlong)local_167); *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) | 0x48; uVar8 = local_164; } else { uVar8 = local_164; if ((*(byte *)(param_1 + 0x1e) & 8) != 0) { RtlCopyUnicodeString(lVar11,&local_150); uVar8 = local_164; } } } if ((*(byte *)(param_1 + 0x1e) & 0x10) == 0) { LAB_4: *(undefined8 *)(param_1 + 0xb0) = *(undefined8 *)(puVar10 + 0x18); InsertFileIdTableNode(param_1); } else { if (*(longlong *)(param_1 + 0xb0) != *(longlong *)(puVar10 + 0x18)) { - RemoveFileIdTableNode(param_1); + uVar4 = Feature_285200698__private_IsEnabledDeviceUsageNoInline(); + if ((int)uVar4 == 0) { + RemoveFileIdTableNode(param_1); + } + else { + FltAcquirePushLockExclusiveEx(&DAT_0,0); + RemoveFileIdTableNode(param_1); + FltReleasePushLockEx(&DAT_0,0); + } } if ((*(byte *)(param_1 + 0x1e) & 0x10) == 0) goto LAB_4; } *(uint *)(param_1 + 0x18) = uVar8; *(ushort *)(param_1 + 0x1e) = *(ushort *)(param_1 + 0x1e) & 0xff7f | 1; -LAB_1: +LAB_2: if ((puVar10 != local_100) && (puVar10 != local_f8)) { LuafvFreePool((longlong)puVar10); } return param_1; } ``` # Modified (No Code Changes) *Slightly modified functions have no code changes, rather differnces in:* - refcount - length - called - calling - name - fullname ## RemoveFileIdTableNode ### Match Info |Key|lua_8972.sys - lua_9168.sys| | :---: | :---: | |diff_type|refcount,address| |ratio|1.0| |i_ratio|0.78| |m_ratio|1.0| |b_ratio|1.0| |match_types|SymbolsHash| ### Function Meta Diff |Key|lua_8972.sys|lua_9168.sys| | :---: | :---: | :---: | |name|RemoveFileIdTableNode|RemoveFileIdTableNode| |fullname|RemoveFileIdTableNode|RemoveFileIdTableNode| |`refcount`|5|7| |length|171|171| |called|LuafvDeleteElementTable
LuafvReplaceElementTable|LuafvDeleteElementTable
LuafvReplaceElementTable| |calling|InitializeFileTableForVolumePreWorker
RemoveTableNode
UpdateTableNode|InitializeFileTableForVolumePreWorker
RemoveTableNode
UpdateTableNode| |paramcount|1|1| |`address`|14001c534|14001c4b4| |sig|undefined __fastcall RemoveFileIdTableNode(longlong param_1)|undefined __fastcall RemoveFileIdTableNode(longlong param_1)| |sym_type|Function|Function| |sym_source|IMPORTED|IMPORTED| |external|False|False| ## wil_details_IsEnabledFallback ### Match Info |Key|lua_8972.sys - lua_9168.sys| | :---: | :---: | |diff_type|refcount,calling| |ratio|1.0| |i_ratio|1.0| |m_ratio|1.0| |b_ratio|1.0| |match_types|SymbolsHash| ### Function Meta Diff |Key|lua_8972.sys|lua_9168.sys| | :---: | :---: | :---: | |name|wil_details_IsEnabledFallback|wil_details_IsEnabledFallback| |fullname|wil_details_IsEnabledFallback|wil_details_IsEnabledFallback| |`refcount`|7|8| |length|140|140| |called|wil_details_FeatureReporting_ReportUsageToService
wil_details_FeatureStateCache_ReevaluateCachedFeatureEnabledState
wil_details_FeatureStateCache_TryEnableDeviceUsageFastPath|wil_details_FeatureReporting_ReportUsageToService
wil_details_FeatureStateCache_ReevaluateCachedFeatureEnabledState
wil_details_FeatureStateCache_TryEnableDeviceUsageFastPath| |`calling`|Feature_3287483706__private_IsEnabledFallback
Feature_3614170424__private_IsEnabledFallback
Feature_Bugfix_LuafvStreamRename__private_IsEnabledFallback
Feature_Bugfix_LuafvTableNode__private_IsEnabledFallback
Feature_Bugfix_LuafvUMA__private_IsEnabledFallback
Feature_ShadowAdminAppCompat__private_IsEnabledFallback|Feature_285200698__private_IsEnabledFallback
Feature_3287483706__private_IsEnabledFallback
Feature_3614170424__private_IsEnabledFallback
Feature_Bugfix_LuafvStreamRename__private_IsEnabledFallback
Feature_Bugfix_LuafvTableNode__private_IsEnabledFallback
Feature_Bugfix_LuafvUMA__private_IsEnabledFallback
Feature_ShadowAdminAppCompat__private_IsEnabledFallback| |paramcount|3|3| |address|140002bb4|140002bb4| |sig|uint __fastcall wil_details_IsEnabledFallback(ulonglong param_1, int param_2, undefined8 * param_3)|uint __fastcall wil_details_IsEnabledFallback(ulonglong param_1, int param_2, undefined8 * param_3)| |sym_type|Function|Function| |sym_source|IMPORTED|IMPORTED| |external|False|False| ### wil_details_IsEnabledFallback Calling Diff ```diff --- wil_details_IsEnabledFallback calling +++ wil_details_IsEnabledFallback calling @@ -0,0 +1 @@ +Feature_285200698__private_IsEnabledFallback ``` ## NTOSKRNL.EXE::ExAllocatePool2 ### Match Info |Key|lua_8972.sys - lua_9168.sys| | :---: | :---: | |diff_type|refcount,calling| |ratio|1.0| |i_ratio|1.0| |m_ratio|1.0| |b_ratio|1.0| |match_types|SymbolsHash,ExternalsName| ### Function Meta Diff |Key|lua_8972.sys|lua_9168.sys| | :---: | :---: | :---: | |name|ExAllocatePool2|ExAllocatePool2| |fullname|NTOSKRNL.EXE::ExAllocatePool2|NTOSKRNL.EXE::ExAllocatePool2| |`refcount`|22|20| |length|0|0| |called||| |`calling`|

Expand for full list:
AllocateDataBuffer
CreateChildTable
CreateTableNode
FindUser
GetLocalAppDataStorePath
LuafvAllocatePool
LuafvBuildAdminInformation
LuafvBuildTableNodeName
LuafvFindUserStore
LuafvGetVolumeProperties
LuafvInitializeUsn

LuafvIsInProfile
LuafvIsTargetWRP
LuafvOpenDirectory
LuafvPerformRename
LuafvPreCreate
LuafvReadAndCacheSecurityDescriptor
LuafvReparse
UpdateTableNode

LuafvIsInProfile
LuafvIsTargetWRP
LuafvOpenDirectory
LuafvPerformRename
LuafvPreCreate
LuafvReadAndCacheSecurityDescriptor
LuafvReparse

Expand for full list:
AllocateTraversalNode
BuildExcludedExtensionsList
BuildNormalizedPathFromFileName
ConvertDosPathToNtPath
FindOrCreateDvfcb
FindUserWithToken
GetFileInformation
GetLocalAppDataStorePath
GetMirrorFileName
GetStaticEntryRoots
GetUserDesktopPath

GrowQueryBuffer
LuafvAllocateAndBuildString
LuafvBuildSecurityDescriptor
LuafvBuildTableNodeName2
LuafvCheckAndCreateAdminDirectoryTree
LuafvCopyFile
LuafvCopySaclWithAudit
LuafvCreateAdminDirectoryTree
LuafvCreateTrustedInstallerSid
LuafvFindTableNodeEx
LuafvGetMirrorRenameInformation
LuafvGetNameFileObject
LuafvInitializeSecurity
LuafvIsFileInSystemManagedAdminAppData
LuafvPrepareDelayedVirtualization
LuafvQueryStoreDirectory
LuafvQueryStoreFile
LuafvSupplyFullPath
NormalizeFullPath
QueryProfilePaths
TranslatePath

| |paramcount|3|3| |`address`|14001a440|14001a3c0| |sig|uint * __fastcall LuafvAllocatePool(int param_1, uint param_2, char param_3)|uint * __fastcall LuafvAllocatePool(int param_1, uint param_2, char param_3)| |sym_type|Function|Function| |sym_source|IMPORTED|IMPORTED| |external|False|False| ### LuafvAllocatePool Calling Diff ```diff --- LuafvAllocatePool calling +++ LuafvAllocatePool calling @@ -32,0 +33 @@ +UpdateTableNode ``` _{Generated with `ghidriff` version: 1.0.0 on 2026-08-21T23:22:53}