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Amazon Linux 2 version 2.0.20211103.0 release notes

RSS

These are the release notes for Amazon Linux 2 version 2.0.20211103.0.

Major updates

• system-release was updated to point the Amazon Linux repositories to the Amazon S3 dual stack IPv4/IPv6 endpoint.

  Note

  The package data itself is still served from IPv4-only endpoints.

Package updates

Amazon Linux 2 includes the following packages.

Packages
aws-cfn-bootstrap-2.0-9.amzn2.noarch
dracut-config-ec2-2.0-2.amzn2.noarch
ec2-instance-connect-1.1-15.amzn2.noarch
glibc-2.26-56.amzn2.aarch64
glibc-2.26-56.amzn2.x86_64
glibc-all-langpacks-2.26-56.amzn2.aarch64
glibc-all-langpacks-2.26-56.amzn2.x86_64
glibc-common-2.26-56.amzn2.aarch64
glibc-common-2.26-56.amzn2.x86_64
glibc-devel-2.26-56.amzn2.x86_64
glibc-headers-2.26-56.amzn2.x86_64
glibc-langpack-en-2.26-56.amzn2.aarch64
glibc-langpack-en-2.26-56.amzn2.x86_64
glibc-locale-source-2.26-56.amzn2.aarch64
glibc-locale-source-2.26-56.amzn2.x86_64
glibc-minimal-langpack-2.26-56.amzn2.aarch64
glibc-minimal-langpack-2.26-56.amzn2.x86_64
kernel-4.14.252-195.483.amzn2.aarch64
kernel-4.14.252-195.483.amzn2.x86_64
kernel-devel-4.14.252-195.483.amzn2.x86_64
kernel-headers-4.14.252-195.483.amzn2.x86_64
kernel-tools-4.14.252-195.483.amzn2.aarch64
kernel-tools-4.14.252-195.483.amzn2.x86_64
kpatch-runtime-0.9.4-2.amzn2.noarch
libcrypt-2.26-56.amzn2.aarch64
libcrypt-2.26-56.amzn2.x86_64
openssl-1.0.2k-19.amzn2.0.10.aarch64
openssl-1.0.2k-19.amzn2.0.10.x86_64
openssl-libs-1.0.2k-19.amzn2.0.10.aarch64
openssl-libs-1.0.2k-19.amzn2.0.10.x86_64
system-release-2-14.amzn2.aarch64
system-release-2-14.amzn2.x86_64

Kernel updates

Rebase kernel to upstream stable 4.14.252.

CVEs fixed:

• CVE-2021-37159 [usb: hso: fix error handling code of hso_create_net_device]

• CVE-2021-3744 [crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd()]

• CVE-2021-3764 [crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd()]

• CVE-2021-20317 [lib/timerqueue: Rely on rbtree semantics for next timer]

• CVE-2021-20321 [ovl: fix missing negative dentry check in ovl_rename()]

• CVE-2021-41864 [bpf: Fix integer overflow in prealloc_elems_and_freelist()]

Amazon Features and Backports:

• Enable nitro-enclaves driver for arm64

Other Fixes:

• md: Fixes a lock order reversal in md_alloc

• arm64: Marks stack_chk_guard as ro_after_init

• cpufreq: schedutil: Uses kobject release() method to free sugov_tunables

• cpufreq: schedutil: Destroys mutex before kobject_put() frees the memory

• ext4: Fixes potential infinite loop in ext4_dx_readdir()

• nfsd4: Handles the NFSv4 READDIR 'dircount' hint being zero

• net_sched: Fixes NULL deref in fifo_set_limit()

• perf/x86: Resets destroy callback on event init failure

• virtio: Writes back F_VERSION_1 before validation