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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
9a0fe62f93ede02c27aaca81112af1e59c8c0979 affected < 68d27250c9e81ab7764603e346c2b1017cb53adf
8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 affected < cfa7e2734877330d6c10e0f33953905486c4530c
8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 affected < de8ccbd6bf4efe7a059e2c483789936009e10f42
8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 affected < db3dbdfea1b8f38774419c5c2c14e4b81c48708d
6.12.13 affected < 6.12.103
Linux Linux affected
Version Status Constraints
6.13 affected —
0 unaffected < 6.13
6.12.103 unaffected ≤ 6.12.*
6.18.44 unaffected ≤ 6.18.*
7.1.8 unaffected ≤ 7.1.*
7.2 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf cve-icon cve-icon
https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c cve-icon cve-icon
https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d cve-icon cve-icon
https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42 cve-icon cve-icon
History

Fri, 28 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
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.
Title of: reserved_mem: prevent OOB when too many dynamic regions are defined
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-28T06:53:18.485Z

Reserved: 2026-08-26T14:34:25.788Z

Link: CVE-2026-80723

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T08:16:58.113

Modified: 2026-08-28T08:16:58.113

Link: CVE-2026-80723

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T11:30:06Z

Weaknesses