Name of the Vulnerable Software and Affected Versions Linux Kernel versions v5.12 through v5.18.5

Description A refcount leak was discovered in the map interrupts function of the irqchip/realtek-rtl driver. The issue was introduced in version v5.12 and is fixed in version v5.18.6. The actual impact and attack plausibility have not yet been proven.

Recommendations For Linux Kernel versions v5.12 through v5.18.5, update to version v5.18.6 or later to resolve the issue. As a temporary workaround, consider disabling the irqchip/realtek-rtl driver until a patch is available.