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VULNERABILITIES

CVE-2026-80723 Details

Description

In the Linux kernel, the following vulnerability has been resolved: of: reserved_mem: prevent OOB when too many dynamic regions are defined On boot, fdt_scan_reserved_mem() saves each dynamically-placed /reserved-memory subnode into a local array of size MAX_RESERVED_REGIONS. If the device tree defines more than MAX_RESERVED_REGIONS dynamically-placed regions, fdt_scan_reserved_mem() writes past the end of the local array. Add a bounds check that logs an error and skips the excess regions, restoring the original behavior.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:8.4 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf kernel.org
https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c kernel.org
https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d kernel.org
https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42 kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-80723
NVD Published Date:
Aug 28, 2026
NVD Last Modified:
Oct 16, 2026
Source:
kernel.org
CVE-2026-80723 Details - Not Deferred