CVE-2022-49961 bpf: Do mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO

In the Linux kernel, the following vulnerability has been resolved: bpf: Do markchainprecision for ARGCONSTALLOCSIZEORZERO Precision markers need to be propagated whenever we have an ARGCONST style argument, as the verifier cannot consider imprecise scalars to be equivalent for the purposes of...