CVE-2025-71192

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-02-04 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-30 06:24 UTC Last updatedMost recent change to the record

Details

Published

2026-02-04 16:16 UTC

Last modified

2026-07-30 06:24 UTC

Exploit probability

0.1% · EPSS, next 30 days

Record status

Deferred

Attack profile CVSS 3.1 · 7.0

Attack vector

Local

Complexity

High

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High