Changeset 74856 in vbox for trunk/src/VBox/Runtime/common/ldr/ldrMachO.cpp

Timestamp:

Oct 16, 2018 12:49:25 AM (6 years ago)

Author:

vboxsync

Message:

IPRT/ldr: Must check that JmpStubsRVA isn't NIL and not use it blindly now that everything isn't MH_OBJECT. Return VERR_LDR_ADDRESS_OVERFLOW if nil. bugref:9232

File:

• trunk/src/VBox/Runtime/common/ldr/ldrMachO.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/common/ldr/ldrMachO.cpp

@@ -3636 +3636 @@
                                        + UINT64_C(0x80000000)
                                     >= UINT64_C(0xffffff20))
+                            {
+                                RTLDRMODMACHO_CHECK_RETURN(pThis->JmpStubsRVA != NIL_RTLDRADDR, VERR_LDR_ADDRESS_OVERFLOW);
                                 SymAddr += pThis->cbJmpStub * Fixup.r.r_symbolnum + pThis->JmpStubsRVA + NewBaseAddress;
+                            }
                             else
                                 SymAddr += pSym->n_value;