CVE-2026-53065 Linux CVE debrief

Who should care

Linux kernel developers and maintainers, Linux distribution vendors, and users of Linux-based systems who require a secure and stable kernel. They should review and update Linux kernel versions to ensure affected versions are patched and monitor Linux kernel updates for future security advisories.

Technical summary

The Linux kernel's ASoC (ALSA System on Chip) component for sti (System-on-Chip) devices has a vulnerability related to regmap_field allocations. The regmap_field objects are allocated during player initialization but are never freed. This can lead to resource leaks if the driver is removed. The fix involves switching to devm_regmap_field_alloc(), which ensures that the lifetime of these allocations is tied to the device's lifetime, preventing resource leaks and maintaining the security and stability of the Linux kernel.

Defensive priority

Apply patches to prevent resource leaks in Linux kernel ASoC sti component. Review and update Linux kernel versions to ensure affected versions are patched. Monitor Linux kernel updates for future security advisories.

Recommended defensive actions

• Apply the provided patches to update the Linux kernel's ASoC sti component to use devm_regmap_field_alloc().
• Review and update Linux kernel versions to ensure affected versions are patched.
• Monitor Linux kernel updates for future security advisories.
• 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 was published on 2026-06-24T17:17:19.490Z and was last modified on 2026-07-21T17:36:37.290Z. The NVD entry is currently Analyzed. This vulnerability affects the Linux kernel's ASoC sti component, specifically the regmap_field allocations. The regmap_field objects allocated at player init are never freed, potentially leaking resources if the driver is removed. The fix involves switching to devm_regmap_field_alloc(), which ensures that the lifetime of these allocations is tied to the device's lifetime, preventing resource leaks. Linux kernel developers and maintainers should review the official advisory for affected scope, severity, and vendor guidance.

Official resources