CVE-2026-93192 Linux CVE debrief

Who should care

Linux kernel users and administrators should assess exposure and apply updates to prevent potential system instability. This includes reviewing system configurations, applying kernel updates, and monitoring system logs for potential exploitation attempts. Additionally, security teams should verify system configurations to prevent similar issues and prioritize applying kernel updates for security and stability.

Why it matters

A vulnerability in the Linux kernel's drm/v3d component can lead to system instability if exploited. Linux kernel users and administrators should assess exposure and apply updates to prevent potential issues.

• Potential system crashes or instability if the vulnerability is exploited
• Need to verify system configurations to prevent similar issues
• Priority to apply kernel updates for security and stability

Technical summary

The Linux kernel's drm/v3d component had a vulnerability where a dangling pointer could occur if v3d_fence_create() failed. This was resolved through specific commits that added a failure path to clear the active job in run_job() callbacks. The vulnerability was caused by the run_job() callbacks for BIN, RENDER, TFU, and CSD assigning the incoming job to queue->active_job before calling v3d_fence_create(). If v3d_fence_create() failed, the callback returned NULL without clearing active_job, leaving a dangling pointer. The fix ensures that the active job is cleared in case of failure, preventing potential system instability.

Defensive priority

Apply kernel updates to ensure system stability and security

Recommended defensive actions

• Apply kernel updates to ensure system stability and security
• Review system logs for potential exploitation attempts
• Verify system configurations to prevent similar issues
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 7.8 and HIGH severity. The issue is resolved through specific commits in the Linux kernel. The vulnerability was publicly disclosed on 2026-09-17T17:18:15.447Z and has a CVSS score of 7.8, indicating a high severity vulnerability. The NVD entry provides additional information on the vulnerability, including its potential impact and affected products.

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.