[all-commits] [llvm/llvm-project] 957a5e: [lldb] Fix nullptr dereference in AppleObjCRuntimeV2

[Jonas Devlieghere via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 957a5e987444d3193575d6ad8afe6c75da00d794
      https://github.com/llvm/llvm-project/commit/957a5e987444d3193575d6ad8afe6c75da00d794
  Author: Jonas Devlieghere <jonas at devlieghere.com>
  Date:   2021-10-18 (Mon, 18 Oct 2021)

  Changed paths:
    M lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp

  Log Message:
  -----------
  [lldb] Fix nullptr dereference in AppleObjCRuntimeV2

Fix a potential nullptr dereference in AppleObjCRuntimeV2 by checking
the result of GetClassInfoUtilityFunction and returning a failure if
it's null.

The DynamicClassInfoExtractor was already doign the right thing, but the
SharedCacheClassInfoExtractor was missing this check.