CVE-2026-71267 [CRITICAL] – microtar’s mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) cop

microtar’s mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.