CVE-2026-80723

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.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf
https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c
https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d
https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 08:16

Updated : 2026-08-29 07:16

NVD link : CVE-2026-80723

Mitre link : CVE-2026-80723

CVE.ORG link : CVE-2026-80723

JSON object : View

Products Affected

No product.

CWE

No CWE.

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