[all-commits] [llvm/llvm-project] 4a49d0: [DebugInfo] Fix overflow in DWARFDebugLine::Sectio...

[Jonas Devlieghere via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4a49d09c3358c6ac54362d9a8ef8075a4b121114
      https://github.com/llvm/llvm-project/commit/4a49d09c3358c6ac54362d9a8ef8075a4b121114
  Author: Jonas Devlieghere <jonas at devlieghere.com>
  Date:   2026-09-21 (Mon, 21 Sep 2026)

  Changed paths:
    M llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp
    M llvm/unittests/DebugInfo/DWARF/DWARFDebugLineTest.cpp

  Log Message:
  -----------
  [DebugInfo] Fix overflow in DWARFDebugLine::SectionParser (#224770)

Adding a DWARF64 unit length can overflow and wrap back into the
section, causing an infinite loop. Saturate the addition so an
overflowing offset fails the bounds check.

rdar://186810393



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