CVE-2026-68469 Linux CVE debrief

Who should care

Linux kernel developers and maintainers, mwifiex driver users, and organizations using affected Linux kernel versions should review and apply the Linux kernel patch for the mwifiex driver. They should also verify the association command response handling in the mwifiex driver and test device configurations for similar issues. Additionally, they should check relevant monitoring, detection, and logs for exposed assets that need extra review. Asset owners should track exceptions, retest remediated assets, and close the item only after evidence is documented. Security teams should review compensating controls for exposed systems while remediation is scheduled and verified. Vulnerability management teams should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. IT operations should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. They should also check relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory teams should review and update their records to reflect the affected systems. Change management teams should plan and implement changes to remediate the vulnerability. Source tracking teams should track the source of the vulnerability and verify the fix. Monitoring teams should review and update their monitoring configurations to detect similar issues in the future. Penetration testing teams should test the vulnerability and verify the fix. Red teaming teams should review and update their testing scenarios to include this vulnerability. Blue teaming teams should review and update their detection and response playbooks to include this vulnerability. Compliance teams should review and update their compliance configurations to reflect the affected systems. Risk management teams should review and update their risk assessments to reflect the vulnerability. Incident response teams should review and update their incident response playbooks to include this vulnerability. Threat intelligence

Technical summary

The mwifiex driver in the Linux kernel incorrectly handles power save states during association commands. This leads to a deferred sleep-confirm command not being sent, causing subsequent scan requests to fail with -EBUSY. The issue arises from the driver unconditionally setting ps_state = PS_STATE_AWAKE when processing association command responses. The vulnerability can be triggered by a delay of approximately 20ms between commands that triggers an EVENT_SLEEP, which can occur when the driver is outputting debugging information.

Defensive priority

Medium

Recommended defensive actions

• Review and apply the Linux kernel patch for the mwifiex driver
• Verify the association command response handling in the mwifiex driver
• Test device configurations for similar issues
• 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.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

Evidence is limited; primary official records indicate a fix for the mwifiex driver in the Linux kernel. Verification tasks include checking the Linux kernel's mwifiex driver implementation, reviewing association command response handling, and testing with similar device configurations. The issue can be verified by testing on IW412 and W8997 devices, and by checking the Linux kernel patch for the mwifiex driver.

Official resources