CVE-2026-90316 Linux CVE debrief

Who should care

Linux kernel maintainers, administrators of systems using the Linux kernel with omap dsi components, and security teams responsible for vulnerability management should assess exposure and prioritize verification of affected systems.

Why it matters

CVE-2026-90316 is a vulnerability in the Linux kernel's drm/omap: dsi component that could lead to use-after-free vulnerabilities. Linux kernel maintainers and administrators should assess exposure, verify affected systems, and apply patches or updates.

• Verification of affected Linux kernel versions is required
• Potential UAF vulnerabilities if interrupts are unregistered during handling
• Patching or updating Linux kernel systems with omap dsi components is necessary

Technical summary

The Linux kernel's drm/omap: dsi component had a vulnerability involving a copied isr table. This could potentially lead to use-after-free (UAF) vulnerabilities if interrupts were unregistered during handling. The issue has been addressed by removing the unnecessary copying of the isr table. Affected Linux kernel versions require verification, and patches or updates should be applied to prevent potential UAF vulnerabilities. Linux kernel maintainers and administrators should assess exposure and prioritize verification of affected systems, especially those with omap dsi components.

Defensive priority

Linux kernel maintainers and administrators should assess exposure and prioritize verification of affected systems, especially those with omap dsi components.

Recommended defensive actions

• Assess exposure of Linux kernel systems with omap dsi components
• Verify if systems are using affected versions of the Linux kernel
• Apply patches or updates provided by the Linux kernel maintainers
• Monitor system logs for potential UAF vulnerabilities
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, specific versions of the Linux kernel affected and detailed exploitation scenarios require verification from official sources.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.