Andrey Turkin : ntdll: Handle invalid pointers in NtQueryInformationProcess (ProcessDebugObjectHandle).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f2432a8bc2dddaa34cfca0abbaf8b0d1ac19b44b
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f2432a8bc2dddaa34cfca0abba...

Author: Andrey Turkin <andrey.turkin(a)gmail.com>
Date:   Tue Oct  6 13:34:21 2009 +0400

ntdll: Handle invalid pointers in NtQueryInformationProcess(ProcessDebugObjectHandle).

---

 dlls/ntdll/process.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/dlls/ntdll/process.c b/dlls/ntdll/process.c
index cae3f79..ba51df5 100644
--- a/dlls/ntdll/process.c
+++ b/dlls/ntdll/process.c
@@ -304,7 +304,14 @@ NTSTATUS WINAPI NtQueryInformationProcess(
          * set it to 0 aka "no debugger" to satisfy copy protections */
         len = sizeof(HANDLE);
         if (ProcessInformationLength == len)
-            memset(ProcessInformation, 0, ProcessInformationLength);
+        {
+            if (!ProcessInformation)
+                ret = STATUS_ACCESS_VIOLATION;
+            else if (!ProcessHandle)
+                ret = STATUS_INVALID_HANDLE;
+            else
+                memset(ProcessInformation, 0, ProcessInformationLength);
+        }
         else
             ret = STATUS_INFO_LENGTH_MISMATCH;
         break;