diff options
| -rw-r--r-- | core/fxcodec/jbig2/JBig2_Context.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/core/fxcodec/jbig2/JBig2_Context.cpp b/core/fxcodec/jbig2/JBig2_Context.cpp index eaaed312d6..778db1c591 100644 --- a/core/fxcodec/jbig2/JBig2_Context.cpp +++ b/core/fxcodec/jbig2/JBig2_Context.cpp @@ -7,6 +7,7 @@ #include "core/fxcodec/jbig2/JBig2_Context.h" #include <algorithm> +#include <limits> #include <list> #include <utility> #include <vector> @@ -1254,8 +1255,10 @@ std::vector<JBig2HuffmanCode> CJBig2_Context::decodeSymbolIDHuffmanTable( int32_t nBits = 0; uint32_t nTemp; while (true) { - if (pStream->read1Bit(&nTemp) != 0) + if (nVal > std::numeric_limits<int32_t>::max() / 2 || + pStream->read1Bit(&nTemp) != 0) { return std::vector<JBig2HuffmanCode>(); + } nVal = (nVal << 1) | nTemp; ++nBits; |