CVE-2022-49427

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the version containing the commit b34ea31fe013

Description A vulnerability in the Linux kernel has been resolved. The issue was related to the iommu clock control in the mtk iommu remove function. After a specific commit, the iommu clock is controlled by the runtime callback, thus removing the need for clk control in the mtk iommu remove function. Without this fix, a warning would occur when unbinding the mtk-iommu driver, resulting in a call trace and a warning message indicating that the vpp0 smi iommu is already disabled.

Recommendations For Linux kernel versions prior to the version containing the commit b34ea31fe013, update to a version that includes this commit to resolve the issue. As a temporary workaround, consider avoiding the removal of the mtk-iommu driver to prevent the warning message.