RHSA-2020:5418: Moderate: kernel security and bug fix update

Published Dec 15, 2020
·
Updated

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Bug Fix(es): [RHEL-8.3][arm64] CN99xx: DIMM errors not populated in EDAC sysfs (BZ#1857754) sctp: backports from upstream, 2nd phase (BZ#1878308) Backport upstream OVS performance patch fix (BZ#1879936) avoid flushbacklog IPI for isolated CPUs by configuring RPS cpumask (BZ#1883315) Unexpected fragmentation needed error, OpenShift 4, OVS, VXLAN, GSO, Azure (BZ#1885767) XFS: reflinked file data corruption (BZ#1886896) Scheduler: rq->tmpalonebranch != &rq->leafcfsrqlist (BZ#1890123) geneve: add transport ports in route lookup for geneve (BZ#1891819) BUG: using smpprocessorid() in preemptible [00000000] code: handler106/3082 (BZ#1893282) HRTICK not armed in specific cases with SCHEDDEADLINE (BZ#1894074) RHEL8.1 - ibmveth is producing TX errors over VXLAN when large send (TSO) is enabled (-> related to Red Hat bug 1816254 - OCP 4.3 - Authentication clusteroperator is in unknown state on POWER 9 servers") (BZ#1896300) RHEL8.2 - mm/gup: fix gupfast with dynamic page table folding (BZ#1896352) block layer: update to upstream v5.8 (BZ#1896788) [Regression] RHEL8.2 zstream - Undetected Data corruption in MPI workloads that use VSX for reductions on POWER9 DD2.1 systems (BZ#1897279) ARO: excessive pod memory allocation causes node lockup (BZ#1901549)

Affected Software

105 affected componentsFixes available
redhat/kernel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-abi-whitelists<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-cross-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-doc<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-libs<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-cross-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debuginfo-common-s390x<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-zfcpdump-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-cross-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-core<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-debuginfo-common-ppc64le<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-headers<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-modules-extra<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-libs<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/bpftool<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/bpftool-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-core<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-cross-headers<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug-core<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug-devel<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug-modules<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debug-modules-extra<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-debuginfo-common-aarch64<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-devel<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-headers<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-modules<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-modules-extra<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-tools<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-tools-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-tools-libs<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/perf<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/perf-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/python3-perf<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/python3-perf-debuginfo<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa
redhat/kernel-tools-libs-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-libs-devel<4.18.0-193.37.1.el8_2
4.18.0-193.37.1.el8_2
redhat/kernel-tools-libs-devel<4.18.0-193.37.1.el8_2.aa
4.18.0-193.37.1.el8_2.aa

Remediation

Event History

Mar 2, 2026
Advisory Published
via Red Hat·01:35 PM
Data Sourced
via Red Hat·01:35 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2020:5418?

The severity of RHSA-2020:5418 is classified as moderate.

2

How do I fix RHSA-2020:5418?

To fix RHSA-2020:5418, update the kernel packages to version 4.18.0-193.37.1.el8_2.

3

What issues does RHSA-2020:5418 address?

RHSA-2020:5418 addresses information exposure vulnerabilities in drivers/char/random.c and kernel/time/timer.c.

4

Which systems are affected by RHSA-2020:5418?

RHSA-2020:5418 affects Red Hat Enterprise Linux 8 systems with specific kernel and related package versions.

5

Is a reboot required after applying the patch for RHSA-2020:5418?

Yes, a reboot is required after applying the patch for RHSA-2020:5418 to ensure the new kernel is loaded.

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