From: Rafał Wojdyła <omeg@invisiblethingslab.com>
Date: Tue, 12 Dec 2023 09:38:45 +0000 (+0100)
Subject: __CaptureUserBuffer(): zero CapturedBuffer on failure in all cases
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=e9802940f00aba180f48f15b5d7ea6877dc3bc44;p=pvdrivers%2Fwin%2Fxeniface.git

__CaptureUserBuffer(): zero CapturedBuffer on failure in all cases

Signed-off-by: Rafał Wojdyła <omeg@invisiblethingslab.com>
---

diff --git a/src/xeniface/ioctls.c b/src/xeniface/ioctls.c
index 6298fef..479f0f6 100644
--- a/src/xeniface/ioctls.c
+++ b/src/xeniface/ioctls.c
@@ -56,8 +56,10 @@ __CaptureUserBuffer(
 
     Status = STATUS_NO_MEMORY;
     TempBuffer = __AllocatePoolWithTag(NonPagedPool, Length, XENIFACE_POOL_TAG);
-    if (TempBuffer == NULL)
+    if (TempBuffer == NULL) {
+        *CapturedBuffer = NULL;
         return STATUS_INSUFFICIENT_RESOURCES;
+    }
 
     Status = STATUS_SUCCESS;