[PATCH] D124915: Check for resource exhaustion when recursively parsing declarators

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman created this revision.
aaron.ballman added reviewers: erichkeane, rsmith, rjmccall.
Herald added a project: All.
aaron.ballman requested review of this revision.
Herald added a project: clang.

With sufficiently tortured code, it's possible to cause a stack overflow when parsing declarators. Thus, we now check for resource exhaustion when recursively parsing declarators so that we can at least warn the user we're about to crash before we actually crash.

This fixes https://github.com/llvm/llvm-project/issues/51642.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124915

Files:
  clang/docs/ReleaseNotes.rst
  clang/include/clang/Parse/Parser.h
  clang/lib/Parse/ParseDecl.cpp
  clang/lib/Parse/Parser.cpp
  clang/test/Parser/declarators-recursion-crash.c

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