ZFS .zfs DoS

[krichy at cflinux.hu]

Dear users,

I've worked out a patch for my known issues, please somebody test them, 
and give recommendations, fixes.

Regards,

2014-01-17 03:11 időpontban Richard Kojedzinszky ezt írta:
> Dear users,
> 
> For a long time now I've been investigating problems relating FreeBSD
> ZFS .zfs handling, and found that I am not enough to fix issues. Until
> fixes arrive, unfortunately a regular user can DoS a FreeBSD system
> which has ZFS filesystems with the attached script. While the script
> expects a snapshot argument to be given, actually the first test case
> does not need that, only a mounted zfs filesystem is enough. For more
> of the tests a snapshot may be needed, and later ones need root
> account also.
> 
> I would recommend that until this gets rewritten or fixed at all, one
> should disable access to .zfs at all with someting like I've attached.
> 
> Regards,
> Kojedzinszky Richard
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