CVE-2026-93802 Linux CVE debrief

Who should care

Linux kernel maintainers, developers, and users of wifi rsi configurations should assess exposure and apply patches as needed. The vulnerability was resolved with a patch that validates the beacon length against the actual tailroom before the copy and skb_put. The patch ensures that the beacon length is validated to prevent buffer overflow.

Why it matters

CVE-2026-93802 is a vulnerability in the Linux kernel's wifi rsi component that requires validation of beacon length before copying into a fixed buffer. Defenders should verify and apply patches, assess exposure in Linux kernel wifi rsi configurations, and review kernel versions for potential impact.

• Verify patch application in Linux kernel wifi rsi configurations
• Assess potential impact on network security and stability

Technical summary

The Linux kernel's wifi rsi component has a vulnerability related to beacon length validation before copying into a fixed buffer. This issue has been resolved with a patch that validates the beacon length against the actual tailroom before the copy and skb_put. The patch ensures that the beacon length is validated to prevent buffer overflow. The vulnerability was resolved with a patch that validates the beacon length against the actual tailroom before the copy and skb_put. Linux kernel maintainers, developers, and users of wifi rsi configurations should assess exposure and apply patches as needed.

Defensive priority

Verify and apply patch; assess exposure in Linux kernel wifi rsi configurations

Recommended defensive actions

• Verify and apply Linux kernel patch for wifi rsi component
• Assess exposure in Linux kernel wifi rsi configurations
• Review Linux kernel version and wifi rsi usage for potential impact
• 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. Plan vendor-
• technicalSummary
• whoShouldCare

Evidence notes

Official CVE Program and NVD records provide details on CVE-2026-93802. Linux kernel source code references are available but require verification of affected versions and configurations. The CVE record was published on 2026-09-24T17:17:13.127Z and has not been modified since then. The NVD vulnerability detail for CVE-2026-93802 provides additional information on the vulnerability.

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.