[Lldb-commits] [lldb] [lldb] Oversized DW_OP_piece triggers an unbounded allocation and aborts LLDB (PR #209397)

[Alexsander Borges Damaceno via lldb-commits]

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@@ -1107,6 +1107,15 @@ static llvm::Error Evaluate_DW_OP_piece(EvalContext &eval_ctx,
   if (piece_byte_size == 0)
     return llvm::Error::success();
 
+  // A single piece of a variable's location can never legitimately be
+  // this large.
+  constexpr uint64_t kMaxDWARFPieceByteSize = 1024 * 1024 * 1024; // 1GB
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AlexsanderDamaceno wrote:

thanks for review, but as there a pr open related to this bug before((https://github.com/llvm/llvm-project/pull/207009), I will close this one

https://github.com/llvm/llvm-project/pull/209397