Amazon Linux 2.0.20210813.1 release notes - Amazon Linux 2
Major updatesPackage updatesKernel updates
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Amazon Linux 2.0.20210813.1 release notes

Amazon Linux 2 was updated.

Major updates

Amazon Linux 2 includes the following update.

  • This update fixed the issue of occasional boot that occurred with grub2 on arm64. It also improved the compatibility of the grub2 generated config file with grubby. It specifically removed the submenus and the unused systemd driven boot counter.

Package updates

Amazon Linux 2 includes the following packages.

Packages

curl-7.76.1-4.amzn2.0.1.aarch64

curl-7.76.1-4.amzn2.0.1.x86_64

ec2-utils-1.2-45.amzn2.noarch

grub2-2.06-2.amzn2.0.3.aarch64

grub2-2.06-2.amzn2.0.3.x86_64

grub2-common-2.06-2.amzn2.0.3.noarch

grub2-efi-aa64-2.06-2.amzn2.0.3.aarch64

grub2-efi-aa64-ec2-2.06-2.amzn2.0.3.aarch64

grub2-efi-aa64-modules-2.06-2.amzn2.0.3.noarch

grub2-efi-x64-ec2-2.06-2.amzn2.0.3.x86_64

grub2-pc-2.06-2.amzn2.0.3.x86_64

grub2-pc-modules-2.06-2.amzn2.0.3.noarch

grub2-tools-2.06-2.amzn2.0.3.aarch64

grub2-tools-2.06-2.amzn2.0.3.x86_64

grub2-tools-minimal-2.06-2.amzn2.0.3.aarch64

grub2-tools-minimal-2.06-2.amzn2.0.3.x86_64

grubby-8.28-23.amzn2.0.2.aarch64

grubby-8.28-23.amzn2.0.2.x86_64

kernel-4.14.243-185.433.amzn2.aarch64

kernel-4.14.243-185.433.amzn2.x86_64

kernel-devel-4.14.243-185.433.amzn2.x86_64

kernel-headers-4.14.243-185.433.amzn2.x86_64

kernel-tools-4.14.243-185.433.amzn2.aarch64

kernel-tools-4.14.243-185.433.amzn2.x86_64

libcurl-7.76.1-4.amzn2.0.1.aarch64

libcurl-7.76.1-4.amzn2.0.1.x86_64

systemtap-runtime-4.4-1.amzn2.0.2.aarch64

systemtap-runtime-4.4-1.amzn2.0.2.x86_64

Kernel updates

Rebase kernel tupstream stable 4.14.243

CVEs fixed:

  • CVE-2021-22543 [KVM: do not allow mapping valid but non-reference-counted pages]

Amazon Features and Backports:

  • In this update, an issue was addressed where an upstream change reverts to memory management. This issue caused significant regressions for some workloads. This issue is referred to as the revert "gup: document and work around "COW can break either way" issue".