common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | - | 4.4.1.x |
| opensuse / opensuse | 13.1 | 13.1.x |
| opensuse / opensuse | 13.2 | 13.2.x |