ALAS2023-2026-1514


Amazon Linux 2023 Security Advisory: ALAS2023-2026-1514
Advisory Released Date: 2026-03-27
Advisory Updated Date: 2026-03-30
Severity: Important

Issue Overview:

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

btrfs: fix reservation leak in some error paths when inserting inline extent (CVE-2025-71268)

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

RDMA/umad: Reject negative data_len in ib_umad_write (CVE-2026-23243)

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

net: gro: fix outer network offset (CVE-2026-23254)

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

net: add proper RCU protection to /proc/net/ptype (CVE-2026-23255)

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

io_uring/rw: free potentially allocated iovec on cache put failure (CVE-2026-23259)

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

regmap: maple: free entry on mas_store_gfp() failure (CVE-2026-23260)


Affected Packages:

kernel6.18


Issue Correction:
Run dnf update kernel6.18 --releasever 2023.10.20260325 or dnf update --advisory ALAS2023-2026-1514 --releasever 2023.10.20260325 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:
aarch64:
    kernel6.18-libbpf-static-6.18.15-14.217.amzn2023.aarch64
    bpftool6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel-livepatch-6.18.15-14.217-1.0-0.amzn2023.aarch64
    kernel6.18-libbpf-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-modules-extra-common-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-modules-extra-6.18.15-14.217.amzn2023.aarch64
    perf6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-libbpf-devel-6.18.15-14.217.amzn2023.aarch64
    perf6.18-6.18.15-14.217.amzn2023.aarch64
    bpftool6.18-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-6.18.15-14.217.amzn2023.aarch64
    python3-perf6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    python3-perf6.18-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-libbpf-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-devel-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-headers-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-debuginfo-common-aarch64-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-devel-6.18.15-14.217.amzn2023.aarch64

src:
    kernel6.18-6.18.15-14.217.amzn2023.src

x86_64:
    kernel6.18-libbpf-devel-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-modules-extra-common-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-6.18.15-14.217.amzn2023.x86_64
    kernel-livepatch-6.18.15-14.217-1.0-0.amzn2023.x86_64
    kernel6.18-libbpf-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-libbpf-debuginfo-6.18.15-14.217.amzn2023.x86_64
    perf6.18-6.18.15-14.217.amzn2023.x86_64
    bpftool6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-modules-extra-6.18.15-14.217.amzn2023.x86_64
    bpftool6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-devel-6.18.15-14.217.amzn2023.x86_64
    perf6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    python3-perf6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    python3-perf6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-libbpf-static-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-headers-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-debuginfo-common-x86_64-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-devel-6.18.15-14.217.amzn2023.x86_64