SEGV in mpack load u8

SEGV in mpack load u8: a task in MiMo-V2.6-RL-harbor-cyber: MiMo-V2.6-RL Cyber (Harbor) (Harbor dataset). UndefinedBehaviorSanitizer: SEGV in function mpack load u8 in file fluent-bit/lib/mpack-amalgamation-1.1/src/mpack/mpack.h