CVE-2026-82324 Gimp: heap out-of-bounds reads in iff/ilbm loader from ham row size mismatch and nplanes=0

A flaw was found in the file-iff IFF/ILBM plugin in GIMP. When processing a specially crafted IFF/ILBM image file, the plugin does not properly validate the HAM row size and improperly handles cases where the number of color planes nPlanes is zero. This causes a row size mismatch that bypasses...