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October 24-26, 2018 - Edinburgh, Scotland, UK
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Wednesday, October 24 • 12:05 - 12:45
Security in QEMU: How Virtual Machines Provide Isolation - Stefan Hajnoczi, Red Hat

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Is it safe to use QEMU to do X? This talk explains the security model and use cases that QEMU is designed for.

Understanding the security model is critical for deploying virtual machines as well as contributing code to QEMU. This talk gives an overview of the attack surfaces, including emulated devices, the monitor, remote desktop, disk images, and the CPU accelerators.

Virtual machines offer isolation from each other and the host if QEMU is configured properly. Most of these best practices are encapsulated in libvirt, but not all users choose to use it, so it is worth understanding them.

Finally, no discussion of security in QEMU would be complete without reviewing CVEs and the lessons learnt from them.

Speakers
avatar for Stefan Hajnoczi

Stefan Hajnoczi

Principle Software Engineer, Red Hat
Stefan has been active in QEMU since 2010 and works in Red Hat's virtualization team with a focus on storage. He helps maintain the block layer and tracing in QEMU. He also organizes and mentors in the Google Summer of Code and Outreachy internship programs, and participates in... Read More →


Wednesday October 24, 2018 12:05 - 12:45
Lowther Suite