RtlGetReturnAddressHijackTarget (dotnet#102021)

kouvel · May 8, 2024 · 214ea9c · 214ea9c
1 parent cdef0dd
commit 214ea9c
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/coreclr/vm/threadsuspend.cpp b/src/coreclr/vm/threadsuspend.cpp
@@ -6060,7 +6060,13 @@ void ThreadSuspend::Initialize()
         HMODULE hModNtdll = WszLoadLibrary(W("ntdll.dll"));
         if (hModNtdll != NULL)
         {
-            g_returnAddressHijackTarget = (void*)GetProcAddress(hModNtdll, "RtlGetReturnAddressHijackTarget");
+            typedef void* (*PFN_RtlGetReturnAddressHijackTarget)(void);
+
+            void* rtlGetReturnAddressHijackTarget = GetProcAddress(hModNtdll, "RtlGetReturnAddressHijackTarget");
+            if (rtlGetReturnAddressHijackTarget != NULL)
+            {
+                g_returnAddressHijackTarget = ((PFN_RtlGetReturnAddressHijackTarget)rtlGetReturnAddressHijackTarget)();
+            }
         }
         if (g_returnAddressHijackTarget == NULL)
         {