In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks When the driver hits -ENOMEM at allocating a URB or a buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point. Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80 cve-icon cve-icon
https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3 cve-icon cve-icon
https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36c cve-icon cve-icon
https://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eae cve-icon cve-icon
https://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3 cve-icon cve-icon
https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31 cve-icon cve-icon
https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bd cve-icon cve-icon
https://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324 cve-icon cve-icon
https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100440-CVE-2022-50484-1a6a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50484 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50484 cve-icon
History

Mon, 06 Oct 2025 22:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Mon, 06 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Sat, 04 Oct 2025 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks When the driver hits -ENOMEM at allocating a URB or a buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point. Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.
Title ALSA: usb-audio: Fix potential memory leaks
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-04T15:16:42.385Z

Reserved: 2025-10-04T15:13:33.468Z

Link: CVE-2022-50484

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-04T16:15:45.210

Modified: 2025-10-06T14:56:47.823

Link: CVE-2022-50484

cve-icon Redhat

Severity : Low

Publid Date: 2025-10-04T00:00:00Z

Links: CVE-2022-50484 - Bugzilla