CVE-2026-72260

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

ASoC: mediatek: mt8192: Check runtime resume during probe

The MT8192 AFE probe enables runtime PM temporarily while reinitializing

the regmap cache from hardware, but it uses pm_runtime_get_sync()

without checking the return value. If runtime resume fails, probe keeps

going without the device necessarily being accessible, and

pm_runtime_get_sync() may leave the PM usage count incremented.

The regmap_reinit_cache() failure path also returns before dropping the

temporary PM reference and before clearing pm_runtime_bypass_reg_ctl.

Use pm_runtime_resume_and_get() so resume failures do not leak a usage

count, and clear the temporary bypass flag after dropping the probe PM

reference on all regmap_reinit_cache() outcomes.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References