CVE-2026-98906 Linux CVE debrief

Who should care

Linux kernel maintainers, network administrators, and security teams responsible for Linux systems, especially those using Linux kernel versions 5.19 and earlier, should be aware of this vulnerability and take necessary actions to mitigate its impacts. They should review and apply patches, verify system configurations, and monitor network operations for potential impacts.

Why it matters

A vulnerability in the Linux kernel's net: lan966x module could allow an attacker to trigger a reload failure, potentially impacting network operations.

• Verify RX state reload failure handling
• Update to fixed Linux kernel versions
• Monitor network operations for potential impacts

Technical summary

The vulnerability is in the Linux kernel's net: lan966x module, specifically in the RX state reload failure handling. The issue is resolved with commits 3883898, b5a6462, and aa97f11. This vulnerability affects Linux kernel versions 5.19 and earlier. The vulnerability can be triggered by an attacker, which could lead to potential impacts on network operations. The vulnerability is related to the RX state reload failure handling in the lan966x module. To mitigate this vulnerability, it is recommended to review and apply patches for Linux kernel versions 5.19 and earlier.

Defensive priority

Medium

Recommended defensive actions

• Review and apply patches for Linux kernel versions 5.19 and earlier
• Verify system configurations and update to fixed versions
• Monitor network operations for potential impacts
• 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 source item provide details on the vulnerability, including its description and affected versions. However, the CVSS score and severity are not provided. The vulnerability is in the Linux kernel's net: lan966x module, specifically in the RX state reload failure handling. The issue is resolved with commits 3883898, b5a6462, and aa97f11. The vulnerability affects Linux kernel versions 5.19 and earlier. The CVSS score and severity are not provided.

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.