Comment 1 for bug 2045968

This issue can be fixed by this commit upstream:
commit 6c4bf3a75f4ba17503bc2d8ba91a7514fdae995e
Author: Avinesh Kumar <email address hidden>
Date: Wed Jan 24 14:26:02 2024 +0100

    mmap04.c: Avoid vma merging

    We hit a scenario where new mapping was merged with existing mapping of
    same permission and the return address from the mmap was hidden in the
    merged mapping in /proc/self/maps, causing the test to fail.
    To avoid this, we first create a 2-page mapping with the different
    permissions, and then remap the 2nd page with the perms being tested.

    Link: https://<email address hidden>/
    Reported-by: Martin Doucha <email address hidden>
    Reviewed-by: Martin Doucha <email address hidden>
    Reviewed-by: Petr Vorel <email address hidden>
    Signed-off-by: Avinesh Kumar <email address hidden>