Messages in this thread | | | Date | Tue, 22 Apr 2014 14:44:24 +0200 | From | Florian Weimer <> | Subject | Re: [PATCH 0/6] File Sealing & memfd_create() |
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On 04/22/2014 01:55 PM, David Herrmann wrote: > Hi > > On Tue, Apr 22, 2014 at 11:10 AM, Florian Weimer <fweimer@redhat.com> wrote: >> Ah. What do you recommend for recipient to recognize such descriptors? >> Would they just try to seal them and reject them if this fails? > > This highly depends on your use-case. Please see the initial email in > this thread. It describes 2 example use-cases. In both cases, the > recipients read the current set of seals and verify that a given set > of seals is set.
I didn't find that very convincing. But in v2, seals are monotonic, so checking them should be reliable enough.
What happens when you create a loop device on a write-sealed descriptor?
-- Florian Weimer / Red Hat Product Security Team
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