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CVE-2022-49310

17
FAUCET Score

CVE-2022-49310 is a refcount leak vulnerability in the Linux kernel's xillybus driver, specifically within the cleanup_dev() function, affecting Linux kernel versions. This medium-severity vulnerability (CVSS 5.5) can lead to a denial of service (A:H) through local access (AV:L) with low privileges (PR:L) and low attack complexity (AC:L). There is currently no evidence of active exploitation, and no public exploit code or significant community discussion has been identified.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.14, < 5.15.47CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.4CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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-2022-49310Moderate

kernel: char: xillybus: fix a refcount leak in cleanup_dev()

Feb 26, 2025

References

git.kernel.org / stable/c/21f1f167d727f3f857e26d509ef5a6d47fd31bc3
Patch
git.kernel.org / stable/c/b67d19662fdee275c479d21853bc1239600a798f
Patch
git.kernel.org / stable/c/bc8fceda3b89006e8a7dda8a097d36045d044c25
Patch
git.kernel.org / stable/c/e277b95acdab84cd5d2f8d537a37aef6d21e988b
Patch