xen-kernel -- arm: vgic-v2: GICD_SGIR is not properly emulated

2015-02-12T00:00:00
ID 785C86B1-27D6-11E5-A4A5-002590263BF5
Type freebsd
Reporter FreeBSD
Modified 2015-02-12T00:00:00

Description

The Xen Project reports:

When decoding a guest write to a specific register in the virtual interrupt controller Xen would treat an invalid value as a critical error and crash the host. By writing an invalid value to the GICD.SGIR register a guest can crash the host, resulting in a Denial of Service attack.