[PATCH] D97699: [analyzer] Add InvalidPtrChecker

[Zurab Tsinadze via Phabricator via cfe-commits]

zukatsinadze created this revision.
zukatsinadze added reviewers: NoQ, vsavchenko, Charusso, Szelethus, martong.
zukatsinadze added a project: clang.
Herald added subscribers: steakhal, ASDenysPetrov, ormris, dkrupp, donat.nagy, mikhail.ramalho, a.sidorin, rnkovacs, szepet, baloghadamsoftware, xazax.hun, mgorny.
zukatsinadze requested review of this revision.
Herald added a subscriber: cfe-commits.

This patch introduces a new checker: `alpha.security.cert.env.InvalidPtr`

Checker finds usage of invalidated pointers.

Based on the following SEI CERT Rules:
ENV31-C: https://wiki.sei.cmu.edu/confluence/x/8tYxBQ
ENV34-C: https://wiki.sei.cmu.edu/confluence/x/5NUxBQ


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97699

Files:
  clang/docs/analyzer/checkers.rst
  clang/include/clang/StaticAnalyzer/Checkers/Checkers.td
  clang/lib/StaticAnalyzer/Checkers/CMakeLists.txt
  clang/lib/StaticAnalyzer/Checkers/cert/InvalidPtrChecker.cpp
  clang/test/Analysis/cert/env31-c/_putenv_s.c
  clang/test/Analysis/cert/env31-c/_wputenv_s.c
  clang/test/Analysis/cert/env31-c/putenv.c
  clang/test/Analysis/cert/env31-c/setenv.c
  clang/test/Analysis/cert/env31-c/unsetenv.c
  clang/test/Analysis/cert/env34-c-cert-examples.c
  clang/test/Analysis/cert/env34-c.c

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