Re: [Xen-devel] xen-netback stable backports request (regression fixes)

[Luis Henriques <luis.henriques@xxxxxxxxxxxxx>]

Ian Campbell <Ian.Campbell@xxxxxxxxxx> writes:

> Hi Dave, stable folks,
>
> The following set of patches fix a xen netback regression caused by the
> fixes for CVE-2013-0216 / CVE-2013-0217 / XSA-39 (the original change
> was several patches starting at 48856286b64e), we'd like to see them
> backported to stable branches if possible. I think the fixups have now
> been in Linus tree since around the start of May.
>
> Wei and I are happy to help with backports if necessary. Some of the
> patches are cleanups which make backports easier but if you would prefer
> we could produce backports without them.
>
> 27f85228 xen-netback: remove skb in xen_netbk_alloc_page
> 2810e5b9 xen-netback: coalesce slots in TX path and fix regressions
> 03393fd5 xen-netback: don't disconnect frontend when seeing oversize packet
> ac69c26e xen-netback: remove redundent parameter in netbk_count_requests
> 59ccb4eb xen-netback: avoid allocating variable size array on stack
> 37641494 xen-netback: better names for thresholds
>
> In addition there are some useful related (but not security relevant)
> fixes to netfront:
>
> e2d617c0 xen-netfront: remove unused variable `extra'
> 7158ff6d xen-netfront: frags -> slots in xennet_get_responses
> 697089dc xen-netfront: frags -> slots in log message
> 9ecd1a75 xen-netfront: reduce gso_max_size to account for max TCP header

Thanks Ian.

For the 3.5 kernel, the only one that seems to cause problems is the
last one (9ecd1a75d977e2e8c48139c7d3efed183f898d94).  However, if I
also pick f36c374782e40a3812f729838b5b80d2ce601725 ("xen/netfront:
handle compound page fragments on transmit"), it applies cleanly.  Do
you see any problem picking this one as well?

Cheers,
-- 
Luis

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