BIT-PILLOW-2026-112397 Pillow: Out-of-bounds access in _imagingmorph on a zero-width image

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's ImageMorph.MorphOp.apply can access memory before a row buffer for a zero-width image. PPM and PGM input can create an image with width zero, and the native morphology routine indexes outrowwidth - 1 without rejecting that geometry. An...