CVE-2015-8338

A flaw was discovered in xen host that prevented the use of a physical CPU for a significant period of time. This can cause a softlockup or watchdog timeout in both the host and other guests.

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, and 7, Red Hat Enterprise MRG 2, and realtime kernels.

At the time of writing, XEN on Red Hat Enterprise Linux 5 did not support ARM guests. XEN was not available on versions Red Hat Enterprise Linux 6 and 7, Red Hat Enterprise MRG 2, and realtime kernels.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.