2436772 – (CVE-2025-71192) CVE-2025-71192 kernel: Kernel: Memory corruption via double free in ALSA AC97 controller

Bug 2436772 (CVE-2025-71192) - CVE-2025-71192 kernel: Kernel: Memory corruption via double free in ALSA AC97 controller

Summary: CVE-2025-71192 kernel: Kernel: Memory corruption via double free in ALSA AC97...

Keywords:
Status:	NEW
Alias:	CVE-2025-71192
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2026-02-04 17:02 UTC by OSIDB Bzimport
Modified:	2026-08-13 14:37 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2026-02-04 17:02:38 UTC

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.

Comment 1 Jon Moroney 2026-02-05 00:30:42 UTC Comment hidden (spam)

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