Messages in this thread |  | | Date | Fri, 20 Feb 2015 13:52:52 +0000 | From | David Vrabel <> | Subject | Re: [Xen-devel] [PATCH V2 1/3] xen: mark pvscsi frontend request consumed only after last read |
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On 17/02/15 07:02, Juergen Gross wrote: > A request in the ring buffer mustn't be read after it has been marked > as consumed. Otherwise it might already have been reused by the > frontend without violating the ring protocol. > > To avoid inconsistencies in the backend only work on a private copy > of the request. This will ensure a malicious guest not being able to > bypass consistency checks of the backend by modifying an active > request.
Applied to stable/for-linus-3.20 and tagged for stable, thanks.
David
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