# Amazon Linux 2 version 2.0.20210617.0 release notes
<a name="relnotes-20210617"></a>

These are the release notes for Amazon Linux 2 version 2.0.20210617.0.

## Major updates
<a name="major-updates-20210617"></a>

None.

## Package updates
<a name="package-updates-20210617"></a>

Amazon Linux 2 includes the following packages.


| Packages | 
| --- | 
| bind-export-libs-9.11.4-26.P2.amzn2.5.2.aarch64 | 
| bind-export-libs-9.11.4-26.P2.amzn2.5.2.x86\_64 | 
| bind-libs-9.11.4-26.P2.amzn2.5.2.aarch64 | 
| bind-libs-9.11.4-26.P2.amzn2.5.2.x86\_64 | 
| bind-libs-lite-9.11.4-26.P2.amzn2.5.2.aarch64 | 
| bind-libs-lite-9.11.4-26.P2.amzn2.5.2.x86\_64 | 
| bind-license-9.11.4-26.P2.amzn2.5.2.noarch | 
| bind-utils-9.11.4-26.P2.amzn2.5.2.aarch64 | 
| bind-utils-9.11.4-26.P2.amzn2.5.2.x86\_64 | 
| bzip2-1.0.6-13.amzn2.0.3.aarch64 | 
| bzip2-1.0.6-13.amzn2.0.3.x86\_64 | 
| bzip2-libs-1.0.6-13.amzn2.0.3.aarch64 | 
| bzip2-libs-1.0.6-13.amzn2.0.3.x86\_64 | 
| cloud-init-19.3-44.amzn2.noarch | 
| cpp-7.3.1-13.amzn2.x86\_64 | 
| curl-7.61.1-12.amzn2.0.4.aarch64 | 
| curl-7.61.1-12.amzn2.0.4.x86\_64 | 
| dhclient-4.2.5-77.amzn2.1.3.aarch64 | 
| dhclient-4.2.5-77.amzn2.1.3.x86\_64 | 
| dhcp-common-4.2.5-77.amzn2.1.3.aarch64 | 
| dhcp-common-4.2.5-77.amzn2.1.3.x86\_64 | 
| dhcp-libs-4.2.5-77.amzn2.1.3.aarch64 | 
| dhcp-libs-4.2.5-77.amzn2.1.3.x86\_64 | 
| dracut-config-ec2-2.0-1.amzn2.noarch | 
| gcc-7.3.1-13.amzn2.x86\_64 | 
| gcc-c-7.3.1-13.amzn2.x86\_64 | 
| glib2-2.56.1-9.amzn2.0.1.aarch64 | 
| glib2-2.56.1-9.amzn2.0.1.x86\_64 | 
| glibc-2.26-47.amzn2.aarch64 | 
| glibc-2.26-47.amzn2.x86\_64 | 
| glibc-all-langpacks-2.26-47.amzn2.aarch64 | 
| glibc-all-langpacks-2.26-47.amzn2.x86\_64 | 
| glibc-common-2.26-47.amzn2.aarch64 | 
| glibc-common-2.26-47.amzn2.x86\_64 | 
| glibc-devel-2.26-47.amzn2.x86\_64 | 
| glibc-headers-2.26-47.amzn2.x86\_64 | 
| glibc-langpack-en-2.26-47.amzn2.aarch64 | 
| glibc-langpack-en-2.26-47.amzn2.x86\_64 | 
| glibc-locale-source-2.26-47.amzn2.aarch64 | 
| glibc-locale-source-2.26-47.amzn2.x86\_64 | 
| glibc-minimal-langpack-2.26-47.amzn2.aarch64 | 
| glibc-minimal-langpack-2.26-47.amzn2.x86\_64 | 
| kernel-4.14.232-177.418.amzn2.aarch64 | 
| kernel-4.14.232-177.418.amzn2.x86\_64 | 
| kernel-devel-4.14.232-177.418.amzn2.x86\_64 | 
| kernel-headers-4.14.232-177.418.amzn2.x86\_64 | 
| kernel-tools-4.14.232-177.418.amzn2.aarch64 | 
| kernel-tools-4.14.232-177.418.amzn2.x86\_64 | 
| libatomic-7.3.1-13.amzn2.x86\_64 | 
| libcilkrts-7.3.1-13.amzn2.x86\_64 | 
| libcrypt-2.26-47.amzn2.aarch64 | 
| libcrypt-2.26-47.amzn2.x86\_64 | 
| libcurl-7.61.1-12.amzn2.0.4.aarch64 | 
| libcurl-7.61.1-12.amzn2.0.4.x86\_64 | 
| libgcc-7.3.1-13.amzn2.aarch64 | 
| libgcc-7.3.1-13.amzn2.x86\_64 | 
| libgomp-7.3.1-13.amzn2.aarch64 | 
| libgomp-7.3.1-13.amzn2.x86\_64 | 
| libitm-7.3.1-13.amzn2.x86\_64 | 
| libmpx-7.3.1-13.amzn2.x86\_64 | 
| libquadmath-7.3.1-13.amzn2.x86\_64 | 
| libsanitizer-7.3.1-13.amzn2.x86\_64 | 
| libstdc-7.3.1-13.amzn2.aarch64 | 
| libstdc-7.3.1-13.amzn2.x86\_64 | 
| libX11-1.6.7-3.amzn2.0.1.x86\_64 | 
| libX11-common-1.6.7-3.amzn2.0.1.noarch | 
| libxml2-2.9.1-6.amzn2.5.3.aarch64 | 
| libxml2-2.9.1-6.amzn2.5.3.x86\_64 | 
| libxml2-python-2.9.1-6.amzn2.5.3.aarch64 | 
| libxml2-python-2.9.1-6.amzn2.5.3.x86\_64 | 
| microcode\_ctl-2.1-47.amzn2.0.9.x86\_64 | 
| nss-3.53.1-7.amzn2.aarch64 | 
| nss-3.53.1-7.amzn2.x86\_64 | 
| nss-sysinit-3.53.1-7.amzn2.aarch64 | 
| nss-sysinit-3.53.1-7.amzn2.x86\_64 | 
| nss-tools-3.53.1-7.amzn2.aarch64 | 
| nss-tools-3.53.1-7.amzn2.x86\_64 | 
| openldap-2.4.44-23.amzn2.0.1.aarch64 | 
| openldap-2.4.44-23.amzn2.0.1.x86\_64 | 
| python-2.7.18-1.amzn2.0.4.aarch64 | 
| python-2.7.18-1.amzn2.0.4.x86\_64 | 
| python3-3.7.10-1.amzn2.0.1.aarch64 | 
| python3-3.7.10-1.amzn2.0.1.x86\_64 | 
| python3-libs-3.7.10-1.amzn2.0.1.aarch64 | 
| python3-libs-3.7.10-1.amzn2.0.1.x86\_64 | 
| python3-pip-20.2.2-1.amzn2.0.3.noarch | 
| python-devel-2.7.18-1.amzn2.0.4.aarch64 | 
| python-devel-2.7.18-1.amzn2.0.4.x86\_64 | 
| python-libs-2.7.18-1.amzn2.0.4.aarch64 | 
| python-libs-2.7.18-1.amzn2.0.4.x86\_64 | 
| python-urllib3-1.25.9-1.amzn2.0.1.noarch | 
| systemd-219-78.amzn2.0.14.aarch64 | 
| systemd-219-78.amzn2.0.14.x86\_64 | 
| systemd-libs-219-78.amzn2.0.14.aarch64 | 
| systemd-libs-219-78.amzn2.0.14.x86\_64 | 
| systemd-sysv-219-78.amzn2.0.14.aarch64 | 
| systemd-sysv-219-78.amzn2.0.14.x86\_64 | 
| update-motd-1.1.2-2.amzn2.0.2.noarch | 

## Kernel updates
<a name="kernel-updates-20210617"></a>

Rebase kernel to upstream stable 4.14.232.

Support for Intel IceLake processors.

CVEs fixed:
+ CVE-2021-33200 [out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations by BPF verifier]

Amazon Features and Backports:
+ bpf: Wrapps aux data inside bpf\_sanitize\_info container 
+ bpf: Fixes mask direction swap upon off reg sign change 
+ bpf: Removes requirement for simulating the speculative domain for immediates 
+ x86/CPU: Adds Icelake model number 
+ perf/x86/intel: Adds Icelake support 
+ perf: Makes perf\_callchain function static 
+ perf/x86/intel: Now supports PEBS on fixed counters 
+ perf/x86/intel: Introduces PMU flag for Extended PEBS 
+ perf/x86/intel: Fixes unwind errors from PEBS entries (mk-II) 
+ perf/UAPI: Clearly markes \_\_PERF\_SAMPLE\_CALLCHAIN\_EARLY as internal use 
+ perf/x86/intel: Doesn't allow precise\_ip on BTS events 
+ perf/x86/intel/ds: Handles PEBS overflow for fixed counters 
+ perf/x86/intel: Adds extract memory code PEBS parser for reuse 
+ perf/x86/intel/ds: Adds extract code of event update in short period 
+ perf/x86/intel: Adds support adaptive PEBS v4 
+ perf/x86/lbr: Avoids reading the LBRs when adaptive PEBS handles them 
+ perf/x86: Adds support for constraint ranges 
+ perf/x86/intel: Fixes SLOTS PEBS event constraint 
+ perf/x86/intel: Fixes Ice Lake event constraint table 
+ perf/x86/intel: Adds event constraint for CYCLE\_ACTIVITY.STALLS\_MEM\_ANY 
+ perf/x86/intel: Fixes rtm\_abort\_event encoding on Ice Lake 
+ x86/CPU: Adds more Icelake model numbers 
+ perf/ring\_buffer: Fixes AUX software double buffering 
+ perf/x86/intel/pt: Removes software double buffering PMU capability 
+ perf/core: Adds function to test for event exclusion flags 
+ perf/core: Adds PERF\_PMU\_CAP\_NO\_EXCLUDE for exclusion incapable PMUs 
+ perf/x86/regs: Checks reserved bits 
+ perf/x86: Cleans up PEBS\_XMM\_REGS 
+ perf/x86: Removes pmu->pebs\_no\_xmm\_regs 
+ perf/x86/intel: Adds more Icelake CPUIDs 
+ ICX : perf/x86: Disables extended registers for non-supported PMUs 
+ ICX : perf/x86: Adds support for outputting XMM registers 
+ tools x86 uapi asm: Syncs the pt\_regs.h copy with the kernel sources 
+ perf tools x86: Adds support for recording and printing XMM registers 
+ perf record: Fixes suggestion to get list of registers usable with --user-regs and --intr-regs 
+ perf parse-regs: Improves error output when faced with unknown register name 
+ ena: Update to 2.5.0