CVE-2025-71192

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.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c
https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f
https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7
https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e
https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396

Configurations

No configuration.

History

30 Jul 2026, 06:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.0

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: ALSA: ac97: corrección de una doble liberación en snd_ac97_controller_register() Si ac97_add_adapter() falla, put_device() es la forma correcta de liberar la referencia del dispositivo. kfree() no es necesario. Añadir kfree() si idr_alloc() falla y en ac97_adapter_release() para realizar la limpieza. Encontrado mediante revisión de código.

04 Feb 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-04 16:16

Updated : 2026-07-30 06:24

NVD link : CVE-2025-71192

Mitre link : CVE-2025-71192

CVE.ORG link : CVE-2025-71192

JSON object : View

Products Affected

No product.

CWE

No CWE.

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