Internet Bug Bounty: Uninitialized Thumbail Data Leads To Memory Leakage in exif_process_IFD_in_TIFF

I found other code chunk that leads to memory leakage. exifprocessIFDinTIFFImageInfo, entryoffset, subsectionindex; if sectionindex!=SECTIONTHUMBNAIL && entrytag==TAGSUBIFD if ImageInfo-Thumbnail.filetype != IMAGEFILETYPEUNKNOWN && ImageInfo-Thumbnail.size && ImageInfo-Thumbnail.offset &&...