[Bug 458521] Re: kvm crash when using virtio for network, hardy guest

Dustin Kirkland dustin.kirkland at gmail.com
Fri Oct 30 20:29:12 GMT 2009

This bug is actually security-critical.  I'm copying the Ubuntu-Security
team, and updating the changelog for security update publication.

Basically, a guest running virtio networking and a linux kernel <=
2.6.25 (eg hardy) can be remotely DoS'd by any other user on the network
flooding an open network port (eg 22) with traffic.  The DoS causes
crash in the kvm process.  Because the guest's operating system was not
shut down cleanly, unwritten buffers or dirty filesystem operations
could yield data loss in the guest.

Attaching a debdiff for the security team to upload to the security-
prosed pocket.


** Attachment added: "out"

kvm crash when using virtio for network, hardy guest
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