GHSA-qp59-x883-77qv: ImageMagick has a Memory Leak in LoadOpenCLDeviceBenchmark() when parsing malformed XML

A memory leak vulnerability exists in the LoadOpenCLDeviceBenchmark() function in MagickCore/opencl.c. When parsing a malformed OpenCL device profile XML file that contains <device elements without proper /> closing tags, the function fails to release allocated memory for string members (platform_name, vendor_name, name, version), leading to memory leaks that could result in resource exhaustion.

Affected Version: ImageMagick 7.1.2-12 and possibly earlier versions