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CVE-2022-49431

17
FAUCET Score

CVE-2022-49431 is a vulnerability in the Linux kernel's powerpc IOMMU component, specifically a resource leak due to a missing of_node_put call in the iommu_init_early_dart function. This flaw affects Linux kernel versions and could lead to a denial-of-service condition. Rated 5.5 MEDIUM, it requires local access and low privileges, with low attack complexity, impacting system availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.4.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.121CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.46CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.3CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.2%
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-2022-49431Low

kernel: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart

Feb 26, 2025

References

git.kernel.org / stable/c/57b742a5b8945118022973e6416b71351df512fb
Patch
git.kernel.org / stable/c/7e3f1dfb9e21733d7276bc9ccea4daada163f2ba
Patch
git.kernel.org / stable/c/8657e8ea23325949091da72453ba84fb73cc2bd9
Patch
git.kernel.org / stable/c/cb4f2dc513e99c5d0485661f114e4dda73612d10
Patch
git.kernel.org / stable/c/df6d8b689252c0acc0448d4ae3d33f2d6db048ab
Patch
git.kernel.org / stable/c/dfc308d6f29aa28463deb9a12278a85a382385ca
Patch