CVE-2022-50484

MEDIUM EPSS 4.2%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.5  –  <4.9.331
linuxlinux_kernel*≥4.10  –  <4.14.296
linuxlinux_kernel*≥4.15  –  <4.19.262
linuxlinux_kernel*≥4.20  –  <5.4.220
linuxlinux_kernel*≥5.5  –  <5.10.150
linuxlinux_kernel*≥5.11  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27
    Patch