Re: 2.6.6-mm1

[Andrew Morton]

Valdis.Kletnieks@xxxxxx 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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