[all-commits] [llvm/llvm-project] ac385c: Fix null dereference in yaml::Document::skip

[Don Hinton via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ac385ca63fe8bc283d7f5be213319cc3b930b4cc
      https://github.com/llvm/llvm-project/commit/ac385ca63fe8bc283d7f5be213319cc3b930b4cc
  Author: Thomas Finch <tfinch at apple.com>
  Date:   2019-11-11 (Mon, 11 Nov 2019)

  Changed paths:
    M llvm/lib/Support/YAMLParser.cpp
    M llvm/unittests/Support/YAMLParserTest.cpp

  Log Message:
  -----------
  Fix null dereference in yaml::Document::skip

Summary: The attached test case replicates a null dereference crash in
`yaml::Document::skip()`. This was fixed by adding a check and early
return in the method.

Reviewers: Bigcheese, hintonda, beanz

Reviewed By: hintonda

Subscribers: hiraditya, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69974