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SubjectRe: 2.6.6-mm1
Valdis.Kletnieks@vt.edu wrote:
>
> On Mon, 10 May 2004 15:02:03 PDT, Andrew Morton said:
>
> > > These two just introduced a subtile behaviour change during stable series,
> > > possibly (not likely) leading to DoS opportunities from applications running
> > > as gid 0.
> >
> > mlock_group is likely to go away.
> >
> > Is an unprivileged user likely to have gid 0? Easy enough to fix, anyway.
>
> Equally important, is gid 0 (with its other possible overloadings) something that we
> want to put on a user just because they have a need for mlock??

You misread the code. The sysctl, when non-zero, specifies the group which is
allowed to allocate hugetlb-backed shm segments.
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