CVE-2025-71192
Published: February 10, 2026Last modified: June 24, 2026
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.161-r0) |
| 25 LTS | linux-lts | Fixed (6.12.66-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- 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