From 64ed1789afb3286cdb638bf34676f7d770032a84 Mon Sep 17 00:00:00 2001 From: wang_yue111 <648774160@qq.com> Date: Tue, 6 Apr 2021 10:24:35 +0800 Subject: [PATCH] double-check unpackedBuffer created in DWA uncompress Signed-off-by: Peter Hillman --- IlmImf/ImfDwaCompressor.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/IlmImf/ImfDwaCompressor.cpp b/IlmImf/ImfDwaCompressor.cpp index 2ef8878..c6518bb 100644 --- a/IlmImf/ImfDwaCompressor.cpp +++ b/IlmImf/ImfDwaCompressor.cpp @@ -2524,7 +2524,7 @@ DwaCompressor::uncompress if (acCompressedSize > 0) { - if (totalAcUncompressedCount*sizeof(unsigned short) > _packedAcBufferSize) + if ( !_packedAcBuffer || totalAcUncompressedCount*sizeof(unsigned short) > _packedAcBufferSize) { throw Iex::InputExc("Error uncompressing DWA data" "(corrupt header)."); -- 2.23.0