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CVE-2022-50400

20
FAUCET Score

CVE-2022-50400 describes a memory leak vulnerability in the greybus audio_helper component of the Linux kernel. Specifically, incorrect debugfs usage could lead to memory leaks and potentially remove all debugfs entries from the system. This vulnerability has a CVSS v3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity, requiring low privileges, and resulting in high availability impact (denial of service). There is no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.10.150CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.75CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.19.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.0, < 6.0.3CPE 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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 22nd 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

Vendor Advisories (1)

redhatCVE-2022-50400

kernel: staging: greybus: audio_helper: remove unused and wrong debugfs usage

Sep 18, 2025

References

git.kernel.org / stable/c/4dab0d27a4211a27135a6899d6c737e6e0759a11
Patch
git.kernel.org / stable/c/5699afbff1fa2972722e863906c0320d55dd4d58
Patch
git.kernel.org / stable/c/d0febad83e29d85bb66e4f5cac0115b022403338
Patch
git.kernel.org / stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0
Patch
git.kernel.org / stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afb
Patch