[Midnightbsd-cvs] [MidnightBSD/src] 6d1d19: LLVM: avoid gc.relocate diagnostic crash

[Lucas Holt]

  Branch: refs/heads/stable/4.1
  Home:   https://github.com/MidnightBSD/src
  Commit: 6d1d19bb5547e39bf648a9b97f43fbc176dd0a6c
      https://github.com/MidnightBSD/src/commit/6d1d19bb5547e39bf648a9b97f43fbc176dd0a6c
  Author: Lucas Holt <luke at foolishgames.com>
  Date:   2026-07-01 (Wed, 01 Jul 2026)

  Changed paths:
    M UPDATING
    M contrib/llvm-project/llvm/lib/IR/AsmWriter.cpp
    M contrib/llvm-project/llvm/lib/IR/Verifier.cpp

  Log Message:
  -----------
  LLVM: avoid gc.relocate diagnostic crash

Reject malformed gc.relocate indexes before verifier diagnostics call accessors that assume valid statepoint operands.

This fixes CVE-2026-13574 for malformed bitcode handled by LLVM.

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