diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index a9d5d3901..6675cc860 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -1171,6 +1171,11 @@
     <alloc>CoTaskMemAlloc</alloc>
     <dealloc>CoTaskMemFree</dealloc>
   </memory>
+  <memory>
+    <alloc>_malloca</alloc>
+    <!-- Do not add _alloca here. It is automatically freed! -->
+    <dealloc>_freea</dealloc>
+  </memory>
   <function name="RtlCompareMemory">
     <noreturn>false</noreturn>
     <leak-ignore/>
@@ -4132,6 +4137,35 @@ HFONT CreateFont(
       <not-bool/>
     </arg>
   </function>
+  <!--void *_malloca(
+  size_t size);-->
+  <function name="_malloca">
+    <returnValue type="void *"/>
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+  </function>
+  <!--void *_alloca(
+  size_t size);-->
+  <function name="_alloca">
+    <returnValue type="void *"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <arg nr="1">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+  </function>
+  <!--void _freea(
+  void *memblock);-->
+  <function name="_freea">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+  </function>
   <podtype name="LARGE_INTEGER" sign="s" size="8"/>
   <podtype name="POINTER_SIGNED" sign="s"/>
   <podtype name="POINTER_UNSIGNED" sign="u"/>
diff --git a/test/cfg/windows.cpp b/test/cfg/windows.cpp
index e5b028c65..71bcacd8a 100644
--- a/test/cfg/windows.cpp
+++ b/test/cfg/windows.cpp
@@ -78,6 +78,12 @@ void validCode()
         ResetEvent(event);
         CloseHandle(event);
     }
+
+    void *pMem1 = _malloca(1);
+    _freea(pMem1);
+    // Memory from _alloca must not be freed
+    void *pMem2 = _alloca(10);
+    memset(pMem2, 0, 10);
 }
 
 void bufferAccessOutOfBounds()
@@ -134,6 +140,13 @@ void nullPointer()
     SetEvent(hEvent);
 }
 
+void memleak_malloca()
+{
+    // cppcheck-suppress unreadVariable
+    void *pMem = _malloca(10);
+    // cppcheck-suppress memleak
+}
+
 void resourceLeak_CreateSemaphoreA()
 {
     HANDLE hSemaphore;
@@ -248,6 +261,11 @@ void ignoredReturnValue()
     OpenEvent(EVENT_ALL_ACCESS, FALSE, L"testevent");
     // cppcheck-suppress leakReturnValNotUsed
     CreateEventEx(NULL, L"test", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
+
+    // cppcheck-suppress leakReturnValNotUsed
+    _malloca(10);
+    // cppcheck-suppress ignoredReturnValue
+    _alloca(5);
 }
 
 void invalidFunctionArg()
@@ -281,6 +299,13 @@ void invalidFunctionArg()
     // cppcheck-suppress invalidFunctionArg
     HINSTANCE hInstLib = LoadLibraryEx(L"My.dll", 1, 0);
     FreeLibrary(hInstLib);
+
+    // cppcheck-suppress invalidFunctionArg
+    void *pMem = _malloca(-1);
+    _freea(pMem);
+    // cppcheck-suppress unreadVariable
+    // cppcheck-suppress invalidFunctionArg
+    pMem = _alloca(-5);
 }
 
 void uninitvar()