On Mon, Feb 01, 2016 at 09:50:53AM -0500, Konrad Rzeszutek Wilk wrote: > > The second bullet looks at first pretty interesting from this PoV, > > see http://xenbits.xen.org/xsa/advisory-157.html for info on the XSA and > > the various patches. Konrad is on the CC already so hopefully he has some > > ideas. > > Thanks. I will try to reproduce this with the upstream kernel first as > those patches are there.
According to one Qubes OS user report[1], the bug was introduced between version, which differs only by XSA-155 patches (including one for pciback), especially not XSA-157. Maybe on some code path, some value is not copied back to pdev->sh_info->op? [1] https://groups.google.com/d/msgid/qubes-devel/e64792c5-b9af-42ac-8d67-adce426b9dcb%40googlegroups.com -- Best Regards, Marek Marczykowski-Górecki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
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