Libvirt Security Notice: LSN-2019-0008

Transactional Synchronization Extensions (TSX) Asynchronous Abort

Lifecycle

Reported on: 20190918
Published on: 20191112
Fixed on: 20191113

Credits

Patched by: Jiri Denemark

See also

Description

This is not a vulnerability in libvirt, rather it is a set of changes in libvirt to enable mitigation and/or avoid unnecessary mitigation of the Transactional Synchronization Extensions (TSX) Asynchronous Abort hardware flaws by providing extra CPU features "tsx-ctrl" and "taa-no". Refer to https://access.redhat.com/articles/tsx-asynchronousabort for further background information.

Affected product: libvirt

Branch master
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