ALAS2-2026-3929

Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-3929
Advisory Released Date: 2026-09-18
Advisory Updated Date: 2026-09-18
Severity: Important
Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:

pppoe: reload header pointer after dev_hard_header() (CVE-2026-68121)

In the Linux kernel, the following vulnerability has been resolved:

sctp: prevent peer transport count overflow (CVE-2026-74469)

In the Linux kernel, the following vulnerability has been resolved:

xfrm: ah6: validate routing header segments_left (CVE-2026-80844)

In the Linux kernel, the following vulnerability has been resolved:

net: tun: bound receive headroom (CVE-2026-81000)


Affected Packages:

kernel


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update kernel or yum update --advisory ALAS2-2026-3929 to update your system.
System reboot is required in order to complete this update.

New Packages:
aarch64:
    kernel-4.14.355-284.746.amzn2.aarch64
    kernel-headers-4.14.355-284.746.amzn2.aarch64
    kernel-debuginfo-common-aarch64-4.14.355-284.746.amzn2.aarch64
    perf-4.14.355-284.746.amzn2.aarch64
    perf-debuginfo-4.14.355-284.746.amzn2.aarch64
    python-perf-4.14.355-284.746.amzn2.aarch64
    python-perf-debuginfo-4.14.355-284.746.amzn2.aarch64
    kernel-tools-4.14.355-284.746.amzn2.aarch64
    kernel-tools-devel-4.14.355-284.746.amzn2.aarch64
    kernel-tools-debuginfo-4.14.355-284.746.amzn2.aarch64
    kernel-devel-4.14.355-284.746.amzn2.aarch64
    kernel-debuginfo-4.14.355-284.746.amzn2.aarch64

i686:
    kernel-headers-4.14.355-284.746.amzn2.i686

src:
    kernel-4.14.355-284.746.amzn2.src

x86_64:
    kernel-4.14.355-284.746.amzn2.x86_64
    kernel-headers-4.14.355-284.746.amzn2.x86_64
    kernel-debuginfo-common-x86_64-4.14.355-284.746.amzn2.x86_64
    perf-4.14.355-284.746.amzn2.x86_64
    perf-debuginfo-4.14.355-284.746.amzn2.x86_64
    python-perf-4.14.355-284.746.amzn2.x86_64
    python-perf-debuginfo-4.14.355-284.746.amzn2.x86_64
    kernel-tools-4.14.355-284.746.amzn2.x86_64
    kernel-tools-devel-4.14.355-284.746.amzn2.x86_64
    kernel-tools-debuginfo-4.14.355-284.746.amzn2.x86_64
    kernel-devel-4.14.355-284.746.amzn2.x86_64
    kernel-debuginfo-4.14.355-284.746.amzn2.x86_64
    kernel-livepatch-4.14.355-284.746-1.0-0.amzn2.x86_64

Additional References

Red Hat: CVE-2026-68121, CVE-2026-74469, CVE-2026-80844, CVE-2026-81000

Mitre: CVE-2026-68121, CVE-2026-74469, CVE-2026-80844, CVE-2026-81000