[all-commits] [llvm/llvm-project] 745722: [llvm-nm] Fix heap-use-after-free while executing ...

[chbessonova via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 745722862951ce029ac41bb490183e7fdef2b2e3
      https://github.com/llvm/llvm-project/commit/745722862951ce029ac41bb490183e7fdef2b2e3
  Author: chbessonova <ch.bessonova at gmail.com>
  Date:   2023-09-13 (Wed, 13 Sep 2023)

  Changed paths:
    M llvm/tools/llvm-nm/llvm-nm.cpp

  Log Message:
  -----------
  [llvm-nm] Fix heap-use-after-free while executing 'llvm-nm -n --export-symbols' (#65668)

Use symbol's flags saved in `NMSymbol::SymFlags` inside
`NMSymbol::isDefined()` since `BasicSymbolRef::getFlags()` requires the
symbol's containing entity object to exist (which doesn't, causing
llvm-nm to crash).