CVE-2026-89629 Linux CVE debrief

Who should care

Linux system administrators and security teams should assess exposure and apply patches or mitigations as necessary. Affected operators, platforms, and vulnerability-management teams should review and apply patches, update Linux kernel versions, and monitor systems for unusual activity related to HID: corsair-void events. Security teams should track exceptions, retest remediated assets, and close the item only after evidence is documented.

Why it matters

This vulnerability in the Linux kernel's HID: corsair-void module requires patching to prevent potential data exposure or system instability. Linux system administrators and security teams should assess exposure and apply patches or mitigations as necessary.

• Potential for data exposure or system crashes due to out-of-bounds reads
• Need for patching or updating Linux kernel versions to prevent exploitation
• Monitoring of system logs for unusual HID: corsair-void activity

Technical summary

The Linux kernel's HID: corsair-void module is vulnerable to an out-of-bounds read due to unchecked size of status and firmware events. This issue has been resolved by adding checks for the size of these events and warning on unexpected values. The vulnerability can be mitigated by applying patches or updates to the Linux kernel. Affected systems may require updates to prevent exploitation. The CVE record and source item provide details on the vulnerability, including its description and affected versions. Defenders should review and apply patches, update Linux kernel versions, and monitor systems for unusual activity.

Defensive priority

Medium

Recommended defensive actions

• Review and apply patches from Linux vendors for the affected HID: corsair-void module
• Update Linux kernel to versions that include the fix
• Monitor Linux systems for unusual activity related to HID: corsair-void events
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description and affected versions. The Linux kernel's HID: corsair-void module is vulnerable to an out-of-bounds read due to unchecked size of status and firmware events. This issue has been resolved by adding checks for the size of these events and warning on unexpected values. Evidence from the CVE record and source item confirms the vulnerability's existence and provides context for defenders.

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.