Re: [libvirt-users] Virtio-net drivers immune to Nethammer?

On Sat, May 19, 2018 at 12:42:14AM +0000, procmem wrote: > Hi I'm a privacy distro maintainer investigating the implications of the > newly published nethammer attack [0] on KVM guests particularly the > virtio-net drivers. The summary of the paper is that rowhammer can be > remotely triggered by feeding susceptible* network driver crafted > traffic. This attack can do all kinds of nasty things such as modifying > SSL certs on the victim system. > > * Susceptible drivers are those relying on Intel CAT, uncached memory or > the clflush instruction. > > My question is, do virtio-net drivers do any of these things? This question is probably better directed at either linux net maintainers list, or the qemu developers list, since that's where the virtio-net experts will be. Regards, Daniel