CLSA-2026-1777541021 gd: Fix of CVE-2021-40145

CVE-2021-40145: Fix a double free in gdImageGd2Ptr in gdgd2.c in the GD Graphics Library...

UBUNTU-CVE-2021-40145

gdImageGd2Ptr in gdgd2.c in the GD Graphics Library aka LibGD through 2.3.2 has a double free. NOTE: the vendor's position is "The GD2 image format is a proprietary image format of libgd. It has to be regarded as being obsolete, and should only be used for development and testing purposes...