CVE-2026-98093 Linux CVE debrief

Who should care

Linux kernel maintainers, developers, and users of systems with the ASoC fsl_micfil component should verify and apply kernel updates to ensure proper clock gating and prevent potential resource leaks.

Why it matters

CVE-2026-98093 is a resolved Linux kernel vulnerability in the ASoC fsl_micfil component. It involves unbalanced mclk enable/disable operations, potentially affecting system resource management. Linux kernel maintainers, developers, and users should verify and apply kernel updates to ensure proper clock gating and prevent potential resource leaks.

• Verify kernel version and apply updates if necessary to prevent resource leaks
• Review system configurations for proper clock gating to avoid warnings

Technical summary

The Linux kernel vulnerability (CVE-2026-98093) involves unbalanced mclk enable/disable operations in the ASoC fsl_micfil component's hw_params() and hw_free() functions. This can trigger warnings or leak enable references, potentially affecting system resource management. The vulnerability is resolved through updated kernel code that balances mclk enable and disable operations. Linux kernel maintainers, developers, and users should verify and apply kernel updates to ensure proper clock gating and prevent potential resource leaks.

Defensive priority

Verify and apply kernel updates to ensure proper clock gating and prevent potential resource leaks.

Recommended defensive actions

• Verify kernel version and apply updates if necessary
• Review system configurations for proper clock gating
• Monitor system logs for related warnings or errors
• Perform a thorough review of system configurations and kernel versions to identify potential vulnerabilities
• Implement compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions and retest remediated assets to ensure the vulnerability is properly addressed
• Review relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and source references indicate a resolved Linux kernel vulnerability in the ASoC fsl_micfil component. The vulnerability involves unbalanced mclk enable/disable operations. The issue is confirmed through source-provided kernel patches and official CVE metadata. Defenders should verify kernel version and apply updates if necessary to prevent resource leaks. The source confidence is high, but the exact scope of affected systems is not specified.

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.