SixLabors/ImageSharp

Image.Load throws DivideByZeroException

Metalnem opened this issue · 0 comments

Prerequisites

  • I have written a descriptive issue title
  • I have verified that I am running the latest version of ImageSharp
  • I have verified if the problem exist in both DEBUG and RELEASE mode
  • I have searched open and closed issues to ensure it has not already been reported

Description

Image.Load throws DivideByZeroException when loading malformed JPG file.

Steps to Reproduce

Run the following code snippet with the path variable containing the path to the file from the attached archive:

Image.Load(path);

You will get the following stack trace:

System.DivideByZeroException: Attempted to divide by zero.
   at SixLabors.ImageSharp.Formats.Jpeg.Components.SizeExtensions.DivideBy(Size a, Size b)
   at SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.JpegComponent.Init()
   at SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.JpegFrame.InitComponents()
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoderCore.ProcessStartOfFrameMarker(Int32 remaining, JpegFileMarker& frameMarker, Boolean metadataOnly)
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoderCore.ParseStream(Stream stream, Boolean metadataOnly)
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoderCore.Decode[TPixel](Stream stream)
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoder.Decode[TPixel](Configuration configuration, Stream stream)
   at SixLabors.ImageSharp.Image.Decode[TPixel](Stream stream, Configuration config)
   at SixLabors.ImageSharp.Image.WithSeekableStream[T](Configuration config, Stream stream, Func`2 action)
   at SixLabors.ImageSharp.Image.Load[TPixel](Configuration config, Stream stream, IImageFormat& format)
   at SixLabors.ImageSharp.Image.Load[TPixel](Configuration config, Byte[] data)

System Configuration

  • ImageSharp version: Beta 6
  • Environment (Operating system, version and so on): Windows 10 Pro 1803
  • .NET Framework version: .NET Core 2.2.102

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