CVE-2022-49653

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak was found in the Linux kernel's i2c piix4 driver, specifically in the EFCH MMIO support code. The leak occurred because release resource() only removes the resource from the tree without freeing its memory, whereas release mem region() is required to free the memory. This issue was introduced by the recently added support for EFCH MMIO regions.

Recommendations To resolve this issue, update the Linux kernel to a version that includes the fix for the memory leak in the i2c piix4 driver. As a temporary workaround, consider applying the patch that replaces release resource() with release mem region() in the affected code path.