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High ALAS2023-2026-3148 1 CVE

Important: kernel6.18 security update (Amazon Linux 2023)

Published Sep 30, 2026 · Updated Sep 30, 2026

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-80521: In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in unix_del_edge().

Fixed packages 19

ReleasePackageFixed in
Amazon Linux · 2023 bpftool6.18 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 bpftool6.18-debuginfo 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel-livepatch-6.18.51-120.163 1:1.0-0.amzn2023
Amazon Linux · 2023 kernel6.18 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-debuginfo 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-debuginfo-common-aarch64 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-debuginfo-common-x86_64 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-devel 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-headers 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-modules-extra 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-modules-extra-common 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-tools 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-tools-debuginfo 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 kernel6.18-tools-devel 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 microvm-kernel6.18 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 perf6.18 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 perf6.18-debuginfo 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 python3-perf6.18 1:6.18.51-120.163.amzn2023
Amazon Linux · 2023 python3-perf6.18-debuginfo 1:6.18.51-120.163.amzn2023

Vulnerabilities 1

  • High 7.8
    CVE-2026-80521 Public exploit

    af_unix: Unlink scc_entry in unix_del_edge().

    In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in unix_del_edge(). Kyle Zeng reported that GC could free a dead SCC partially. The scenario is as follows: 1) Create two SCCs: X -. A <-> B ^--' 2) Run the followin…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-80521.html