CVE-2026-80723
linux: In the Linux kernel, the following vulnerability has been resolved: of: reserved_mem: prevent OOB when too many dyna...
CVE-2026-80723 is fixed in 74 products on 1 platform, first by DEBIAN-CVE-2026-80723, released August 29, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.4
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel-livepatch-6.12.103-127.188 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel-livepatch-6.18.44-99.149 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.105-1 | DEBIAN-CVE-2026-80723 | Aug 29, 2026 |
| linux · Debian 14 | 7.1.8-1 | DEBIAN-CVE-2026-80723 | Aug 29, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.107-1~deb12u1 | DEBIAN-CVE-2026-80723 | Aug 29, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.103-127.188.amzn2023 | ALAS2023-2026-2110 | Aug 31, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.44-99.149.amzn2023 | ALAS2023-2026-2106 | Aug 31, 2026 |
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