Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.249

Description The issue is related to a refcount leak in the gic populate ppi partitions function. It was introduced in version v4.7 and fixed in version v4.19.249. The actual impact and attack plausibility have not yet been proven.

Recommendations For Linux Kernel versions prior to v4.19.249, update to version v4.19.249 or later to resolve the issue. As a temporary workaround, consider restricting access to the gic populate ppi partitions function until a patch is available.