Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.61

Description A refcount leak was found in the setup msi msg address function. The issue was introduced in version v2.6.23 and is fixed in Linux Kernel version v5.15.61. The actual impact and attack plausibility of this issue have not yet been proven.

Recommendations For Linux Kernel versions prior to v5.15.61, update to version v5.15.61 or later to resolve the issue. As a temporary workaround, consider restricting access to the setup msi msg address function until a patch is available.