heap-buffer-overflow in check glyph property

heap-buffer-overflow in check glyph property: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). AddressSanitizer: heap-buffer-overflow in function check glyph property in file harfbuzz/src/hb-ot-layout-gsubgpos.hh