CVE-2022-50482: iommu/vt-d: Clean up si_domain in the init_dmars() error path
In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Clean up sidomain in the initdmars() error path
A splat from kmemcachedestroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in initdmars(), because the iommudomain cache still had objects. While the mempool code is now gone, there still is a leak of the sidomain memory if initdmars() fails. So clean up sidomain in the initdmars() error path.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2022-50482?
CVE-2022-50482 has a high severity rating due to its impact on the Linux kernel.
How do I fix CVE-2022-50482?
To mitigate CVE-2022-50482, upgrade the Linux kernel to a version that includes the patch after commit ee2653bbe89d.
Which versions of the Linux kernel are affected by CVE-2022-50482?
Linux kernel versions prior to the commit ee2653bbe89d are affected by CVE-2022-50482.
What systems are impacted by CVE-2022-50482?
CVE-2022-50482 impacts systems running vulnerable versions of the Linux kernel.
Is CVE-2022-50482 related to IOMMU vulnerabilities?
Yes, CVE-2022-50482 is related to vulnerabilities in the IOMMU subsystem of the Linux kernel.