PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-74317 Linux CVE debrief

A vulnerability in the Linux kernel's ixgbe driver has been addressed. The issue arises from calling netif_set_xps_queue() for XDP Tx queues, which are not netdev-exposed. This can lead to warnings and KASAN reports on systems with 64 or more CPUs. The vulnerability has been resolved through a series of commits, f488b83, a2a224f5, and 7bd43552. The fix ensures that XDP queues are properly handled, preventing unnecessary configurations and potential issues. Linux kernel developers and maintainers should review the commits and apply them to ensure vulnerability resolution.

Vendor
Linux
Product
Unknown
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-15
Original CVE updated
2026-10-16
Advisory published
2026-08-15
Advisory updated
2026-10-16

Who should care

Linux kernel developers and maintainers, system administrators responsible for Linux systems, security teams monitoring Linux kernel vulnerabilities, and operators managing Linux-based infrastructure. These stakeholders should review and apply patches, verify system configurations, and monitor for warnings and KASAN reports related to this vulnerability.

Why it matters

This vulnerability in the Linux kernel's ixgbe driver can lead to warnings and KASAN reports. Defenders should verify system configurations, review and apply patches, and monitor for related issues.

  • Defenders should verify system configurations for XDP queues to prevent warnings and potential issues
  • Linux kernel developers and maintainers should review and apply patches to ensure vulnerability resolution
  • System administrators should monitor for warnings and KASAN reports related to this vulnerability

Technical summary

The Linux kernel's ixgbe driver has a vulnerability that occurs when netif_set_xps_queue() is called for XDP Tx queues. This can cause warnings and KASAN reports on systems with 64 or more CPUs. The issue has been addressed through commits f488b83, a2a224f5, and 7bd43552, which ensure proper handling of XDP queues and prevent unnecessary configurations. Linux kernel developers and maintainers should review and apply these commits to resolve the vulnerability. System administrators should verify system configurations and monitor for related issues.

Defensive priority

Medium

Recommended defensive actions

  • Review and apply patches from Linux kernel maintainers
  • Verify system configurations for XDP queues
  • Monitor for warnings and KASAN reports
  • 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
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details about the vulnerability, including its description and references to patches. However, the corpus does not establish versions, exploitation, impact, or remediation beyond the provided official sources. Defenders should verify system configurations for XDP queues, review and apply patches from Linux kernel maintainers, and monitor for warnings and KASAN reports related to this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-74317 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-74317

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-74317 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-74317

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • ixgbe: do not configure xps for XDP queues

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/74xxx/CVE-2026-74317.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/f488b83a38103e8eea442cd8fa1a10f982bd60af

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/a2a224f5e344ccb1ec3693a0735822db9214e2ca

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/7bd4355272de34c2e90e34b72c5613736d03c32b

    Supplemental source

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.