ALAS2-2026-3161

Amazon Linux 2 Security Advisory: ALAS2-2026-3161
Advisory Released Date: 2026-02-05
Advisory Updated Date: 2026-02-05
Severity: Important
Issue Overview:

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

net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)

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

pps: fix warning in pps_register_cdev when register device fail (CVE-2025-40070)

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

net/ip6_tunnel: Prevent perpetual tunnel growth (CVE-2025-40173)


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 ALAS2-2026-3161 to update your system.

New Packages:
aarch64:
    kernel-4.14.355-280.713.amzn2.aarch64
    kernel-headers-4.14.355-280.713.amzn2.aarch64
    kernel-debuginfo-common-aarch64-4.14.355-280.713.amzn2.aarch64
    perf-4.14.355-280.713.amzn2.aarch64
    perf-debuginfo-4.14.355-280.713.amzn2.aarch64
    python-perf-4.14.355-280.713.amzn2.aarch64
    python-perf-debuginfo-4.14.355-280.713.amzn2.aarch64
    kernel-tools-4.14.355-280.713.amzn2.aarch64
    kernel-tools-devel-4.14.355-280.713.amzn2.aarch64
    kernel-tools-debuginfo-4.14.355-280.713.amzn2.aarch64
    kernel-devel-4.14.355-280.713.amzn2.aarch64
    kernel-debuginfo-4.14.355-280.713.amzn2.aarch64

i686:
    kernel-headers-4.14.355-280.713.amzn2.i686

src:
    kernel-4.14.355-280.713.amzn2.src

x86_64:
    kernel-4.14.355-280.713.amzn2.x86_64
    kernel-headers-4.14.355-280.713.amzn2.x86_64
    kernel-debuginfo-common-x86_64-4.14.355-280.713.amzn2.x86_64
    perf-4.14.355-280.713.amzn2.x86_64
    perf-debuginfo-4.14.355-280.713.amzn2.x86_64
    python-perf-4.14.355-280.713.amzn2.x86_64
    python-perf-debuginfo-4.14.355-280.713.amzn2.x86_64
    kernel-tools-4.14.355-280.713.amzn2.x86_64
    kernel-tools-devel-4.14.355-280.713.amzn2.x86_64
    kernel-tools-debuginfo-4.14.355-280.713.amzn2.x86_64
    kernel-devel-4.14.355-280.713.amzn2.x86_64
    kernel-debuginfo-4.14.355-280.713.amzn2.x86_64
    kernel-livepatch-4.14.355-280.713-1.0-0.amzn2.x86_64

Additional References

Release Notes:  Amazon Linux 2 Release Notes

Red Hat: CVE-2024-26804, CVE-2025-40070, CVE-2025-40173

Mitre: CVE-2024-26804, CVE-2025-40070, CVE-2025-40173