CVE-2026-80723
of: reserved_mem: prevent OOB when too many dynamic regions are defined
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 28, 2026 |
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Affected Versions
Linux / Linux
9a0fe62f93ede02c27aaca81112af1e59c8c0979 < 68d27250c9e81ab7764603e346c2b1017cb53adf 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < cfa7e2734877330d6c10e0f33953905486c4530c 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < de8ccbd6bf4efe7a059e2c483789936009e10f42 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < db3dbdfea1b8f38774419c5c2c14e4b81c48708d 6.12.13 < 6.12.103
Linux / Linux
6.13
References
git.kernel.org: 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/de8ccbd6bf4efe7a059e2c483789936009e10f42 git.kernel.org: https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d