ALSA: ac97: fix a double free in snd_ac97_controller_register()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.161, 6.6.121, 6.12.66, 6.18.6, 6.19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-71192
- 2026-10-03 Alias added: GHSA-629p-5p7m-6c4r
References
Other 5
- https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7
- https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c
- https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396
- https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e
- https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f
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Sources
- CVE-2025-71192 · CVE Program
- CVE-2025-71192 · NVD
- FIRST EPSS
- GHSA-629p-5p7m-6c4r · GitHub Advisory Database · CC BY 4.0
- CVE-2025-71192 · Red Hat security data · CC BY 4.0
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