CVE-2026-72167
Description
A flaw was found in the mtd: rawnand: pl353 component of the Linux kernel. During the probe function, the devm_ioremap() call incorrectly uses the parent device instead of the pl35x device for resource allocation. This oversight prevents the register area from being properly released when the module is unloaded. A local attacker could potentially exploit this to cause a resource leak, leading to a denial of service (DoS) over time.
Statement
A moderate-severity flaw was found in the Linux kernel pl353 raw NAND controller driver (drivers/mtd/nand/raw/pl35x-nand-controller.c). During the driver's probe() routine, devm_ioremap() is called with the parent device instead of the pl35x device, so the mapped controller register area is not released when the module is unloaded. A local attacker able to load and unload the module could exploit this resource leak to cause a denial of service over time; there is no confidentiality or integrity impact. All currently tracked Red Hat Enterprise Linux (kernel and kernel-rt) and Red Hat In-Vehicle OS (kernel and kernel-ivos-qualcomm) streams are marked not affected because the vulnerable code is not present in the shipped kernels.
Mitigation
Mitigation for this issue is either not available or the currently available options do not 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 | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
