CVE-2026-100077 Linux CVE debrief

Who should care

Linux system administrators and security teams, especially those managing systems with drm/msm GPU configurations, should assess and address this vulnerability to prevent potential GPU issues.

Why it matters

CVE-2026-100077 is a Linux kernel vulnerability in drm/msm that affects GPU recovery from hangs. Defenders should verify and update Linux systems to prevent potential GPU issues.

• Verify GPU recovery process correctness to prevent pagefaults
• Assess Linux kernel versions for vulnerability presence
• Apply kernel updates or patches for drm/msm component

Technical summary

The Linux kernel vulnerability (CVE-2026-100077) involves a flaw in the drm/msm component's GPU recovery process. The problem arises from retiring hung submits before GPU recovery is complete, potentially causing GPU pagefaults. The solution is to retire submits after GPU recovery, ensuring proper handling of GPU hangs and preventing pagefaults. This vulnerability affects Linux systems with drm/msm GPUs, requiring assessment and potential updates to prevent GPU issues. Defenders should focus on verifying GPU recovery processes and applying necessary patches.

Defensive priority

Assess and apply kernel updates for Linux systems utilizing drm/msm, ensuring GPU recovery processes are correctly handling hung submits.

Recommended defensive actions

• Assess Linux kernel versions for drm/msm GPU recovery vulnerability
• Apply kernel updates or patches provided by Linux distributions
• Verify GPU recovery processes in Linux systems utilizing drm/msm
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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 associated source references provide details on the vulnerability and its resolution within the Linux kernel, specifically addressing drm/msm GPU recovery processes. The vulnerability was resolved through a patch that ensures proper GPU recovery from hangs, preventing potential GPU pagefaults. Defenders should verify and update Linux systems to prevent potential GPU issues, focusing on systems with drm/msm GPU configurations. The patch addresses the issue by retiring hung submits after GPU recovery is complete, thus

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.