CVE-2025-71192
Double Free Vulnerability in Linux ALSA AC97 Controller
Publication date: 2026-02-04
Last updated on: 2026-02-04
Assigner: kernel.org
Description
Description
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a double free issue in the ALSA ac97 controller component of the Linux kernel. Specifically, in the function snd_ac97_controller_register(), if the function ac97_add_adapter() fails, the device reference should be dropped using put_device(), not kfree(). Incorrectly calling kfree() can lead to freeing memory twice, which is a double free vulnerability.
How can this vulnerability impact me? :
A double free vulnerability can lead to undefined behavior such as memory corruption, crashes, or potentially allow an attacker to execute arbitrary code. In this case, the improper memory management in the ALSA ac97 controller could destabilize the system or be exploited to compromise system security.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know