[all-commits] [llvm/llvm-project] 744660: [-Wunsafe-buffer-usage] Fix a potential overflow b...

[Ziqing Luo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7446601c6a9b71945fdc9d7434d8347789708858
      https://github.com/llvm/llvm-project/commit/7446601c6a9b71945fdc9d7434d8347789708858
  Author: Ziqing Luo <ziqing at udel.edu>
  Date:   2025-02-28 (Fri, 28 Feb 2025)

  Changed paths:
    M clang/lib/Analysis/UnsafeBufferUsage.cpp

  Log Message:
  -----------
  [-Wunsafe-buffer-usage] Fix a potential overflow bug reported by #126334 (#129169)

`MeasureTokenLength` may return an unsigned 0 representing failure in
obtaining length of a token. The analysis now gives up on such cases.
Otherwise, there might be issues caused by unsigned integer "overflow".



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