CVE-2024-42091: drm/xe: Check pat.ops before dumping PAT settings
In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Check pat.ops before dumping PAT settings
We may leave pat.ops unset when running on brand new platform or when running as a VF. While the former is unlikely, the latter is valid (future) use case and will cause NPD when someone will try to dump PAT settings by debugfs.
It's better to check pointer to pat.ops instead of specific .dump hook, as we have this hook always defined for every .ops variant.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-42091?
CVE-2024-42091 has a medium severity rating due to its potential impacts on system security related to PAT settings in the Linux kernel.
How do I fix CVE-2024-42091?
To address CVE-2024-42091, upgrade to the patched versions of the Linux kernel, specifically 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.128-1, 6.12.12-1, or 6.12.13-1.
Which software is affected by CVE-2024-42091?
CVE-2024-42091 affects the Linux kernel versions prior to the patched releases mentioned for Debian and related distributions.
What does CVE-2024-42091 exploit?
CVE-2024-42091 exploits improper handling of PAT operations, which may result in undefined behavior in certain conditions.
When was CVE-2024-42091 disclosed?
CVE-2024-42091 was disclosed as a vulnerability in the Linux kernel affecting various kernel versions, highlighting security configuration issues.