CVE Catalog

CVE-2026-72260

Low risk· EPSS 12%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

12th percentile - higher than 12% of all known CVEs

Summary

In the Linux kernel, a missing check of pm_runtime_get_sync() return value was found in ASoC mediatek mt8192 during probe. If runtime resume fails, probe continues without the device necessarily being accessible, and the PM usage count may remain incremented. The regmap_reinit_cache() error path also returns before dropping the temporary PM reference and clearing pm_runtime_bypass_reg_ctl. The fix uses pm_runtime_resume_and_get() and clears the flag after dropping the PM reference.

Risk Assessment

Improper PM resource management can lead to system instability, power leaks, or malfunction of audio hardware.

Recommendation

It is recommended to update the Linux kernel to a version containing the fix that checks the result of pm_runtime_resume_and_get() and cleans up resources appropriately.

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS