Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Make DrawImage processor more robust to bad input. #2673

Merged
merged 1 commit into from
Feb 24, 2024
Merged

Make DrawImage processor more robust to bad input. #2673

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions src/ImageSharp/Processing/Processors/Drawing/DrawImageProcessor{TPixelBg,TPixelFg}.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -98,9 +98,10 @@ protected override void OnFrameApply(ImageFrame<TPixelBg> source)
top = 0;
}

// clamp the height/width to the availible space left to prevent overflowing
// Clamp the height/width to the available space left to prevent overflowing
foregroundRectangle.Width = Math.Min(source.Width - left, foregroundRectangle.Width);
foregroundRectangle.Height = Math.Min(source.Height - top, foregroundRectangle.Height);
foregroundRectangle = Rectangle.Intersect(foregroundRectangle, this.ForegroundImage.Bounds);

int width = foregroundRectangle.Width;
int height = foregroundRectangle.Height;
Expand All @@ -111,7 +112,6 @@ protected override void OnFrameApply(ImageFrame<TPixelBg> source)
}

// Sanitize the dimensions so that we don't try and sample outside the image.
foregroundRectangle = Rectangle.Intersect(foregroundRectangle, this.ForegroundImage.Bounds);
Rectangle backgroundRectangle = Rectangle.Intersect(new(left, top, width, height), this.SourceRectangle);
Configuration configuration = this.Configuration;

Expand Down
Loading