CVE-2022-49653: i2c: piix4: Fix a memory leak in the EFCH MMIO support
In the Linux kernel, the following vulnerability has been resolved:
i2c: piix4: Fix a memory leak in the EFCH MMIO support
The recently added support for EFCH MMIO regions introduced a memory leak in that code path. The leak is caused by the fact that releaseresource() merely removes the resource from the tree but does not free its memory. We need to call releasememregion() instead, which does free the memory. As a nice side effect, this brings back some symmetry between the legacy and MMIO paths.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2022-49653?
CVE-2022-49653 is classified as a memory leak vulnerability in the Linux kernel.
How do I fix CVE-2022-49653?
To address CVE-2022-49653, update your Linux kernel to a version that includes the patch for this vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-49653?
CVE-2022-49653 affects Linux kernel versions from 5.15.42 to 5.15.54, and from 5.17.10 to 5.18.11, including various 5.19 release candidates.
What specific issue does CVE-2022-49653 address?
CVE-2022-49653 addresses a memory leak caused by the addition of EFCH MMIO region support in the Linux kernel.
Is CVE-2022-49653 present in older versions of the Linux kernel?
CVE-2022-49653 is not present in versions of the Linux kernel prior to 5.15.42.