CVEvulnerability
CVE-2026-80723
8.4 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.4 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf git.kernel.org
- https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c git.kernel.org
- https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d git.kernel.org
- https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42 git.kernel.org