Changeset 100828 in vbox for trunk

Timestamp:

Aug 9, 2023 12:03:53 PM (19 months ago)

Author:

vboxsync

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

158727

Message:

VMM/IEM: Corrected BODY_CHECK_CS_LIM calc was off by one. Untested. bugref:10369

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllThrdFuncsBltIn.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllThrdFuncsBltIn.cpp

@@ -166 +166 @@
  *        test, since it would require replacing the default firmware. */
 #define BODY_CHECK_CS_LIM(a_cbInstr) do { \
-        if (RT_LIKELY((uint32_t)(pVCpu->cpum.GstCtx.eip + cbInstr) <= pVCpu->cpum.GstCtx.cs.u32Limit)) \
+        if (RT_LIKELY((uint32_t)(pVCpu->cpum.GstCtx.eip + cbInstr - 1U) <= pVCpu->cpum.GstCtx.cs.u32Limit)) \
         { /* likely */ } \
         else \