Re: [PATCH net] vhost/net: fix heads usage of ubuf_info
From: Michael S. Tsirkin
Date: Thu Mar 21 2013 - 02:01:59 EST
On Sun, Mar 17, 2013 at 02:29:55PM -0400, David Miller wrote:
> From: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
> Date: Sun, 17 Mar 2013 14:46:09 +0200
> > ubuf info allocator uses guest controlled head as an index,
> > so a malicious guest could put the same head entry in the ring twice,
> > and we will get two callbacks on the same value.
> > To fix use upend_idx which is guaranteed to be unique.
> > Reported-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
> > Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Applied and queued up for -stable, thanks.
> And thankfully you got the stable URL wrong,
Yes I wrote stable@xxxxxxxxxx that's what an old copy
I should have known better than look at it on the 'net. The top
'Everything you ever wanted to know about Linux 2.6 -stable releases.'
is a big hint that it's stale.
Any idea who maintains this? Better update it or remove it or redirect to git.
> please do not CC:
> networking patches to stable, just make sure I apply them and in
> your post-commit text explicitly ask me to queue it up to my
> -stable queue.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/