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    Subjectincrease AT_VECTOR_SIZE to terminate saved_auxv properly
    include/asm-powerpc/elf.h has 6 entries in ARCH_DLINFO.
    fs/binfmt_elf.c has 14 unconditional NEW_AUX_ENT entries and 2
    conditional NEW_AUX_ENT entries.
    So in the worst case, saved_auxv does not get an AT_NULL entry at the
    end.

    Is an AT_NULL entry required or must userspace use the AT_VECTOR_SIZE
    to not loop past the end of the array?
    If AT_NULL is required, AT_VECTOR_SIZE should be changed from 44 to 46.

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