[jgardou] 53482: [KERNEL32] - do not access memory that might have been freed

Author: jgardou
Date: Sun Aug 28 17:30:25 2011
New Revision: 53482
URL: http://svn.reactos.org/svn/reactos?rev=53482&view=rev
Log:
[KERNEL32]
- do not access memory that might have been freed
Modified:
    trunk/reactos/dll/win32/kernel32/client/debugger.c
Modified: trunk/reactos/dll/win32/kernel32/client/debugger.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/debugger.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/debugger.c [iso-8859-1] Sun Aug 28 17:30:25
2011
@@ -305,7 +305,8 @@
     /* Loop all thread data events */
     ThreadData = (PDBGSS_THREAD_DATA*)NtCurrentTeb()->DbgSsReserved;
-    for (ThisData = *ThreadData; ThisData; ThisData = ThisData->Next)
+    ThisData = *ThreadData;
+    while(ThisData)
     {
         /* Check if this one matches */
         if ((ThisData->HandleMarked) &&
@@ -326,6 +327,7 @@
             /* Move to the next one */
             ThreadData = &ThisData->Next;
         }
+        ThisData = *ThreadData;
     }
 }
@@ -338,7 +340,8 @@
     /* Loop all thread data events */
     ThreadData = (PDBGSS_THREAD_DATA*)NtCurrentTeb()->DbgSsReserved;
-    for (ThisData = *ThreadData; ThisData; ThisData = ThisData->Next)
+    ThisData = *ThreadData;
+    while(ThisData)
     {
         /* Check if this one matches */
         if (ThisData->ProcessId == dwProcessId)
@@ -358,6 +361,7 @@
             /* Move to the next one */
             ThreadData = &ThisData->Next;
         }
+        ThisData = *ThreadData;
     }
 }