Make sure that read is complete to prevent infinite loop.

(cherry picked from commit ffe5eb517dad93845e62144d8e53f52b17420ecd)
4 years ago · 07225c05ee
parent bc0f4f5bd0
commit 07225c05ee
1 changed files with 1 additions and 1 deletions
--- a/src/jpgimage.cpp
+++ b/src/jpgimage.cpp
@ -637,7 +637,7 @@ namespace Exiv2 {
                // Read size and signature
                std::memset(buf.pData_, 0x0, buf.size_);
                bufRead = io_->read(buf.pData_, bufMinSize);
-                if (io_->error())
+                if (io_->error() || bufRead != bufMinSize)
                    throw Error(kerFailedToReadImageData);
                if (bufRead < 2)
                    throw Error(kerNotAJpeg);