CVE-2026-97575 Linux CVE debrief

Who should care

Linux kernel developers and maintainers, as well as users of Linux-based systems that utilize the media v4l2-ctrls functionality, should review and apply the patch to ensure the vulnerability is fixed. They should also verify that the Linux kernel's media v4l2-ctrls is properly validating AV1 tile counts to prevent potential security issues. Additionally, affected operators, platform administrators, vulnerability management teams, and security teams should

Why it matters

The Linux kernel's media v4l2-ctrls vulnerability has been resolved, and it is essential to review and apply the patch to ensure the vulnerability is fixed. Linux kernel developers and maintainers should verify that the Linux kernel's media v4l2-ctrls is properly validating AV1 tile counts to prevent potential security issues.

• Potential security issues due to lack of validation of AV1 tile counts
• Need to verify that Linux kernel's media v4l2-ctrls is properly validating AV1 tile counts
• Potential for security issues if not properly validated

Technical summary

The Linux kernel's media v4l2-ctrls vulnerability has been resolved. The vulnerability is related to the validation of AV1 tile counts. The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop bounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[] arrays, as the divisor for context_update_tile_id, and their product bounds the per-tile descriptor buffers. However, std_validate_compound() does not bound these u8 fields.

Defensive priority

High

Recommended defensive actions

• Review and apply the patch to ensure the vulnerability is fixed
• Verify that the Linux kernel's media v4l2-ctrls is properly validating AV1 tile counts
• Monitor for any potential security issues related to this vulnerability
• 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 compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability. The Linux kernel's media v4l2-ctrls vulnerability has been resolved, and the fix has been committed to the kernel's stable branch.

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.