CVE-2026-98500 Linux CVE debrief

Who should care

Linux kernel maintainers, HID: hid-oxp users, security teams responsible for Linux kernel deployments, and operators of systems using the affected HID: hid-oxp component should assess exposure, verify patch application, and monitor for potential device access anomalies.

Why it matters

CVE-2026-98500 is a Linux kernel vulnerability involving HID: hid-oxp. The resolution involves using cancel_delayed_work_sync() to prevent concurrent access to HID devices after they have been closed and stopped. Linux kernel maintainers and users should assess exposure, verify patch application, and monitor for potential device access anomalies.

• Verify patch application to prevent device access anomalies
• Assess exposure in Linux kernel deployments using HID: hid-oxp
• Monitor for potential HID device access issues

Technical summary

The Linux kernel vulnerability involved HID: hid-oxp using cancel_delayed_work() which could lead to concurrent access to HID devices after closure. The issue was resolved by using cancel_delayed_work_sync() to ensure that any in-progress work callback completes before device teardown proceeds. This change prevents potential device access anomalies by ensuring that HID devices are not accessed after they have been closed and stopped. The resolution was made to address a race condition that could lead to HID device access after closure.

Defensive priority

Assess exposure in Linux kernel deployments using HID: hid-oxp, verify patch application, and monitor for potential device access anomalies.

Recommended defensive actions

• Assess Linux kernel deployments for HID: hid-oxp usage
• Verify application of the cancel_delayed_work_sync() patch
• Monitor device access and HID device closure
• 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 NVD entry provide details on the Linux kernel vulnerability and its resolution. The issue was identified in the HID: hid-oxp component of the Linux kernel. The resolution involves using cancel_delayed_work_sync() to ensure that any in-progress work callback completes before device teardown proceeds. Evidence is based on the official CVE Program record and the NIST NVD vulnerability detail page.

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.