CVE-2026-53019 Linux CVE debrief

Who should care

Linux kernel users and administrators should be aware of this vulnerability and take necessary actions to protect their systems. This includes updating the Linux kernel to the latest version, reviewing system logs for potential kernel panics, and monitoring system performance for potential issues. Security teams and vulnerability management teams should also be aware of this vulnerability and prioritize patching of affected systems.

Technical summary

The vulnerability was caused by an inverted condition in the ccu_mix_trigger_fc() function, which could cause kernel panics during cpufreq scaling. The issue has been resolved through a patch to the Linux kernel. Affected users should update their Linux kernel to the latest version and review system logs for potential kernel panics. The vulnerability is related to the clk: spacemit: ccu_mix component of the Linux kernel.

Defensive priority

Medium

Recommended defensive actions

• Update the Linux kernel to the latest version
• Review system logs for potential kernel panics
• Monitor system performance for potential issues
• 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 vulnerability was reported and resolved. The CVE record was published on 2026-06-24T17:17:13.227Z and last modified on 2026-07-10T19:24:19.850Z. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected systems and review official advisories for specific guidance.

Official resources