Messages in this thread | | | Date | Sun, 17 Mar 2013 14:29:55 -0400 (EDT) | Subject | Re: [PATCH net] vhost/net: fix heads usage of ubuf_info | From | David Miller <> |
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From: "Michael S. Tsirkin" <mst@redhat.com> 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@rustcorp.com.au> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Applied and queued up for -stable, thanks.
And thankfully you got the stable URL wrong, 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.
Thanks.
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