tree c6f80a9ec56dc205c803779f35822deea7f0a587
parent d4da360082e8eadcd12b5030f42a9ba598332471
author Anestis Bechtsoudis <anestis@census-labs.com> 1436723495 -0500
committer Anestis Bechtsoudis <anestis@census-labs.com> 1436803859 -0500

ART: Fix DexFileVerifier try_items OoO validation

DexFileVerifier::CheckIntraCodeItem() implements an out of order
validation for CodeItem try_items.  try_items_size is validated for
sanity via CheckListSize() at dex_file_verifier.cc:800, although
handlers_size ULEB128 read (offset calculated from tries_size_) occurs
before at lines 797-798.

An out of bounds (wild) read will occur for invalid try_items_size at
parsed DEX file.

handlers_size read has been moved after try_items validation to resolve
this OoO issue.

Bug: 21307613
Bug: https://code.google.com/p/android/issues/detail?id=178592
Change-Id: I94d00819ee9a465f57ba9a1fdfdd356979e35ed7