CVE-2026-97511 Linux CVE debrief

Who should care

Defenders responsible for Linux kernel-based systems, particularly those utilizing the affected versions, should assess exposure and prioritize patching. They should also review system configurations for potential exposure, monitor system logs for suspicious activity, and track exceptions, retest remediated assets, and close the item only after evidence is documented.

Why it matters

A vulnerability in the Linux kernel's mac80211 component can lead to out-of-bounds access and potential data exposure. Defenders should prioritize patching and monitoring system logs.

• Potential for out-of-bounds access and data exposure
• Need for patching to prevent exploitation
• Importance of monitoring system logs for suspicious activity

Technical summary

The vulnerability is caused by an out-of-bounds access in the mac80211 component when handling NAN frames. The fix involves not accessing the sbands array if the band is NUM_NL80211_BANDS. This means that rate info for legacy rates in NAN will not be reported. Defenders should prioritize verifying and applying patches for this vulnerability, particularly for systems utilizing the affected Linux kernel versions. The issue can lead to potential data exposure and emphasizes the need for patching to prevent exploitation and monitoring system logs for suspicious activity.

Defensive priority

Defenders should prioritize verifying and applying patches for this vulnerability, particularly for systems utilizing the affected Linux kernel versions.

Recommended defensive actions

• Verify and apply patches for the Linux kernel
• Review system configurations for potential exposure
• Monitor system logs for suspicious activity
• 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 description and references to the Linux kernel patches. Defenders should verify and apply patches for this vulnerability, particularly for systems utilizing the affected Linux kernel versions. The vulnerability is caused by an out-of-bounds access in the mac80211 component when handling NAN frames. This issue can lead to potential data exposure and emphasizes the need for patching to prevent exploitation and monitoring system logs for suspicious activity.

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.