ALAS2023LIVEPATCH-2026-171

References: CVE-2026-43284  CVE-2026-43500  CVE-2026-46300 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:
xfrm: esp: avoid in-place decrypt on shared skb frags

"Dirty Frag" and other issues in Amazon Linux kernels:
https://aws.amazon.com/security/security-bulletins/2026-027-aws/ (CVE-2026-43284)

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

rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present (CVE-2026-43500)

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

net: skbuff: propagate shared-frag marker through pskb_copy() (CVE-2026-46300)

Issue Correction:
Please ensure you have live patching enabled. Run dnf update kernel-livepatch-6.12.83-113.160 --releasever latest or dnf update --advisory ALAS2023LIVEPATCH-2026-171 --releasever latest 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:
    kernel-livepatch-6.12.83-113.160-1.0-1.amzn2023.aarch64

src:
    kernel-livepatch-6.12.83-113.160-1.0-1.amzn2023.src

x86_64:
    kernel-livepatch-6.12.83-113.160-1.0-1.amzn2023.x86_64