CVE-2026-93046
Description
A flaw was found in the Linux kernel's software node component. A local attacker could exploit a failing bounds check in the software_node_get_reference_args() function when an index of UINT_MAX is passed. This could lead to an out-of-bounds access in the property array, potentially resulting in memory corruption and system instability or denial of service.
Statement
Red Hat has rated this vulnerability as a Moderate severity flaw because exploitation requires authenticated local access and primarily results in a denial of service via system crashes. The defect resides within the kernel core driver property handling mechanism, limiting direct exposure to local execution contexts interacting with software nodes. Because the vulnerability cannot be triggered remotely and does not directly facilitate privilege escalation, the primary risk remains restricted to host availability.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | 7 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | High |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | High |
| Integrity Impact | None | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
