CVE Catalog

CVE-2025-71192

HighCVSS 7.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.11%

2th percentile - higher than 2% of all known CVEs

Summary

In the Linux kernel, a double free vulnerability was found in the ALSA AC97 module in the snd_ac97_controller_register() function. If ac97_add_adapter() fails, using kfree() instead of put_device() leads to a double free.

Risk Assessment

The risk is a potential system crash or memory corruption during AC97 audio controller handling, which may affect system stability.

Recommendation

It is recommended to update the Linux kernel to a version containing the fix for CVE-2025-71192.

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: ALSA: ac97: fix a double free in snd_ac97_controller_register() If ac97_add_adapter() fails, put_device() is the correct way to drop the device reference. kfree() is not required. Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do the cleanup. Found by code review.

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