From 3ed77e0115adb910b6e678ee38b17587266ae923 Mon Sep 17 00:00:00 2001
From: "Stephan T. Lavavej" <stl@microsoft.com>
Date: Mon, 23 Mar 2026 14:09:27 -0700
Subject: [PATCH 1/2] Suppress CodeQL warnings.

---
 stl/inc/xlocinfo    | 1 +
 stl/src/locale0.cpp | 1 +
 2 files changed, 2 insertions(+)

diff --git a/stl/inc/xlocinfo b/stl/inc/xlocinfo
index 290596d8bd..1f0195f029 100644
--- a/stl/inc/xlocinfo
+++ b/stl/inc/xlocinfo
@@ -183,6 +183,7 @@ public:
 
     template <class _Elem2 = _Elem, enable_if_t<is_same_v<_Elem2, char>, int> = 0>
     void _From_wide(const wchar_t* const _Right) noexcept {
+        // CodeQL [SM02986] We are intentionally storing `wchar_t*` as `char*` due to ABI, see GH-5781
         if (reinterpret_cast<wchar_t*>(_Myptr) != _Right) { // new value, discard old and copy new
             _Tidy();
 
diff --git a/stl/src/locale0.cpp b/stl/src/locale0.cpp
index e47b4e9094..7b176a1edc 100644
--- a/stl/src/locale0.cpp
+++ b/stl/src/locale0.cpp
@@ -236,6 +236,7 @@ void __CLRCALL_PURE_OR_CDECL _Locinfo::_Locinfo_dtor(_Locinfo* pLocinfo) { // de
         // so reinterpret_cast is not reliable.
         _wsetlocale(LC_ALL, L"");
     } else {
+        // CodeQL [SM02986] We are intentionally storing `wchar_t*` as `char*` due to ABI, see GH-5781
         _wsetlocale(LC_ALL, reinterpret_cast<const wchar_t*>(pLocinfo->_Oldlocname._C_str()));
     }
 }

From 0d8d58049c83ec531ef656b1f20f35c52f8687de Mon Sep 17 00:00:00 2001
From: "Stephan T. Lavavej" <stl@microsoft.com>
Date: Mon, 23 Mar 2026 14:15:25 -0700
Subject: [PATCH 2/2] Suppress an additional line, just in case.

---
 stl/inc/xlocinfo | 1 +
 1 file changed, 1 insertion(+)

diff --git a/stl/inc/xlocinfo b/stl/inc/xlocinfo
index 1f0195f029..e71846c183 100644
--- a/stl/inc/xlocinfo
+++ b/stl/inc/xlocinfo
@@ -188,6 +188,7 @@ public:
             _Tidy();
 
             if (_Right) { // new is not empty, copy it
+                // CodeQL [SM02986] We are intentionally storing `wchar_t*` as `char*` due to ABI, see GH-5781
                 _Myptr = reinterpret_cast<char*>(_STD _Ntcts_dup_dbg(_Right));
             }
         }