CVE-2026-31540: drm/i915/gt: Check set_default_submission() before deferencing
drm/i915/gt: Check setdefaultsubmission() before deferencing
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Patch daa199abc3d3d1740c9e3a2c3e9216ae5b447cad
Event History
Frequently Asked Questions
What systems are exposed to this issue?
Systems using the Linux kernel i915 graphics driver are affected when the driver firmware binaries are not present. The failure occurs during system suspend, when the unset set_default_submission pointer is dereferenced.
What does an attacker need to exploit this vulnerability?
The CVSS vector indicates local access and low privileges are required, with no user interaction. The documented impact is a system availability failure caused by a kernel NULL-pointer dereference during suspend.
Is a default installation necessarily affected?
The issue depends on the i915 driver firmware binaries being absent. The provided information does not establish whether those binaries are present in any particular default distribution or installation.
How can administrators identify potential exposure?
Check whether the affected system uses the i915 driver and whether its required firmware binaries are missing. Affected systems may log a kernel NULL pointer dereference during entry to deep suspend.