CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

PT-2020-16115

Name of the Vulnerable Software and Affected Versions Xen versions 4.12 through 4.14.x Description A missing unlock in the XENMEM acquire resource error path causes an RCU reference to be leaked. This can lead to a host Denial of Service when administration operations, such as CPU offline,...