diff options
| -rw-r--r-- | libqpdf/Pl_PNGFilter.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libqpdf/Pl_PNGFilter.cc b/libqpdf/Pl_PNGFilter.cc index 4b79e6b1..1566c8a5 100644 --- a/libqpdf/Pl_PNGFilter.cc +++ b/libqpdf/Pl_PNGFilter.cc @@ -14,6 +14,10 @@ Pl_PNGFilter::Pl_PNGFilter(char const* identifier, Pipeline* next, buf2(0), pos(0) { + if (columns == 0) + { + throw std::runtime_error("PNGFilter created with columns = 0"); + } this->buf1 = new unsigned char[columns + 1]; this->buf2 = new unsigned char[columns + 1]; this->cur_row = buf1; |