Fix OOPStackUnwinderX86::Unwind crash when Eip is invalid

diff --git a/src/unwinder/i386/unwinder_i386.cpp b/src/unwinder/i386/unwinder_i386.cpp
index 42c19cb..8cd8f48 100644 (file)
--- a/src/unwinder/i386/unwinder_i386.cpp
+++ b/src/unwinder/i386/unwinder_i386.cpp
@@ -30,7 +30,7 @@ BOOL OOPStackUnwinderX86::Unwind(T_CONTEXT* pContextRecord, T_KNONVOLATILE_CONTE
     EECodeInfo codeInfo;
     codeInfo.Init((PCODE) ControlPc);
 
-    if (!UnwindStackFrame(&rd, &codeInfo, UpdateAllRegs, &codeManState, NULL))
+    if (!codeInfo.IsValid() || !UnwindStackFrame(&rd, &codeInfo, UpdateAllRegs, &codeManState, NULL))
     {
         return FALSE;
     }