[LTP] [PATCH] Modify the test logic of mincore.

[Cyril Hrubis]

Hi!
> The test was passed before the cve patch was applied, and the test
> failed after the patch was applied, and the test results were the same
> on both the x86 and mips architectures.
>
> This cve patch changes mincore() to count "mapped" pages instead of 
> "cached" pages.

I've looked at at the mincore code and found what is your problem. The
initiall patch that fixed the CVE was wrong and later reverted and
replaced with a different fix:

commit 134fca9063ad4851de767d1768180e5dede9a881
Author: Jiri Kosina <jkosina@suse.cz>
Date:   Tue May 14 15:41:38 2019 -0700

    mm/mincore.c: make mincore() more conservative


So it's your kernel that is broken and the test is fine.

-- 
Cyril Hrubis
chrubis@suse.cz