Changeset 79084 in vbox

Timestamp:

Jun 11, 2019 10:40:04 AM (6 years ago)

Author:

vboxsync

Message:

VMM/HMVMXR0: Nested VMX: bugref:9180 Fix off-by-one bug while merging MSR bitmaps.

File:

• trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp

@@ -10033 +10033 @@
      * nested-guest using hardware-assisted VMX.
      */
-    uint32_t const cbFrag = sizeof(uint64_t);
-    uint32_t const cFrags = X86_PAGE_4K_SIZE / cbFrag;
-    for (uint32_t i = 0; i <= cFrags; i++)
+    uint32_t const cFrags = X86_PAGE_4K_SIZE / sizeof(uint64_t);
+    for (uint32_t i = 0; i < cFrags; i++)
         pu64MsrBitmap[i] = pu64MsrBitmapNstGst[i] | pu64MsrBitmapGst[i];
 }