Re: [stable] xen/pciback: Don't disable PCI_COMMAND on PCI device reset.

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On Mon, Jun 03, 2019 at 03:10:55PM +0200, Juergen Gross wrote:
> On 03/06/2019 14:02, Ben Hutchings wrote:
> > On Mon, 2019-06-03 at 10:00 +0200, Greg KH wrote:
> >> On Thu, May 30, 2019 at 07:02:34PM -0700, Konrad Rzeszutek Wilk wrote:
> >>> On 5/30/19 8:16 AM, Ben Hutchings wrote:
> >>>> I'm looking at CVE-2015-8553 which is fixed by:
> >>>>
> >>>> commit 7681f31ec9cdacab4fd10570be924f2cef6669ba
> >>>> Author: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> >>>> Date:   Wed Feb 13 18:21:31 2019 -0500
> >>>>
> >>>>      xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
> >>>>
> >>>> I'm aware that this change is incompatible with qemu < 2.5, but that's
> >>>> now quite old.  Do you think it makes sense to apply this change to
> >>>> some stable branches?
> >>>>
> >>>> Ben.
> >>>>
> >>>
> >>> Hey Ben,
> >>>
> >>> <shrugs> My opinion is to drop it, but if Juergen thinks it makes sense to
> >>> backport I am not going to argue.
> >>
> >> Ok, I've queued this up now, thanks.
> > 
> > Juergen said:
> > 
> >> I'm with Konrad here.
> > 
> > so unless I'm very confused this should *not* be applied to stable
> > branches.
> 
> "should not" is a little bit hard. I didn't opt for adding it, but I
> don't object to add it either (like Konrad :-) ).

Ok, I've added it as it does fix a CVE, and if I don't, I'll get odd
emails 6 months from now asking why I didn't include it...

thanks,

greg k-h



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