Marcus Meissner : crypt32: Handle NULL ptr leak in CryptDecodeObjectEx ( Coverity).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 896be411438f961503478843fc7e2ddda8c28f75
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=896be411438f961503478843fc7e2ddda8c28f75

Author: Marcus Meissner <marcus at jet.franken.de>
Date:   Fri Dec 31 12:50:36 2010 +0100

crypt32: Handle NULL ptr leak in CryptDecodeObjectEx (Coverity).

---

 dlls/crypt32/decode.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/dlls/crypt32/decode.c b/dlls/crypt32/decode.c
index a1431fb..dd0064d 100644
--- a/dlls/crypt32/decode.c
+++ b/dlls/crypt32/decode.c
@@ -5976,8 +5976,15 @@ BOOL WINAPI CryptDecodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
     }
 
     SetLastError(NOERROR);
-    if (dwFlags & CRYPT_DECODE_ALLOC_FLAG && pvStructInfo)
+    if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+    {
+        if (!pvStructInfo)
+        {
+            SetLastError(ERROR_INVALID_PARAMETER);
+            return FALSE;
+        }
         *(BYTE **)pvStructInfo = NULL;
+    }
     decodeFunc = CRYPT_GetBuiltinDecoder(dwCertEncodingType, lpszStructType);
     if (!decodeFunc)
     {