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CVE-2022-50484

20
FAUCET Score

CVE-2022-50484 is a memory leak vulnerability in the Linux kernel's ALSA USB audio driver. This flaw occurs when memory allocation fails during URB (USB Request Block) setup, potentially leaving partially allocated resources unreleased. It carries a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges, and leading to high availability impact (denial of service). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.5, < 4.9.331CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.296CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.262CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.220CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.150CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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 Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 29th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-477.10.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50484Low

kernel: ALSA: usb-audio: Fix potential memory leaks

Oct 4, 2025

References

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