[all-commits] [llvm/llvm-project] 58cda6: [flang][CodeGen] Fix use-after-free in BoxedProced...

[Krzysztof Parzyszek via All-commits]

  Branch: refs/heads/users/kparzysz/spr/uaf-04
  Home:   https://github.com/llvm/llvm-project
  Commit: 58cda6db7030e178fbd861312dcee372e1558611
      https://github.com/llvm/llvm-project/commit/58cda6db7030e178fbd861312dcee372e1558611
  Author: Krzysztof Parzyszek <Krzysztof.Parzyszek at amd.com>
  Date:   2024-03-07 (Thu, 07 Mar 2024)

  Changed paths:
    M flang/lib/Optimizer/CodeGen/BoxedProcedure.cpp

  Log Message:
  -----------
  [flang][CodeGen] Fix use-after-free in BoxedProcedurePass

Replacing an element of an operation range while traversing the range
can make the range invalid. Store the operations in a separate list,
and traverse the list instead.
Additionally, avoid inspecting an operation that has been replaced.

This was detected by address sanitizer.



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