Changeset 40032 in vbox for trunk/src/VBox/Storage

Timestamp:

Feb 7, 2012 11:28:44 PM (13 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

76156

Message:

Storage/VDI: Fix possible corruption when compacting an image with differencing images on a 32bit system caused by an integer overflow

File:

• trunk/src/VBox/Storage/VDI.cpp (modified) (1 diff)

trunk/src/VBox/Storage/VDI.cpp

@@ -2509 +2509 @@
                 else if (pfnParentRead)
                 {
-                    rc = pfnParentRead(pvParent, i * cbBlock, pvBuf, cbBlock);
+                    rc = pfnParentRead(pvParent, (uint64_t)i * cbBlock, pvBuf, cbBlock);
                     if (RT_FAILURE(rc))
                         break;