RHSA-2021:1028: Important: kernel security and bug fix update
First published: Tue Mar 30 2021(Updated: )
The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)</li> <li> kernel: performance counters race condition use-after-free (CVE-2020-14351)</li> 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.<br>Bug Fix(es):<br><li> Openstack network node reports unregister_netdevice: waiting for qr-3cec0c92-9a to become free. Usage count = 1 (BZ#1908539)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-abi-whitelists | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-doc | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-headers | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo-common-s390x | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-headers | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-kdump | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-kdump-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-kdump-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-bootwrapper | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo-common-ppc64 | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/bpftool-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-bootwrapper | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debug-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-debuginfo-common-ppc64le | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-headers | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/kernel-tools-libs-devel | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
| redhat/python-perf-debuginfo | <3.10.0-1062.46.1.el7 | 3.10.0-1062.46.1.el7 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:1028?
The severity of RHSA-2021:1028 is classified as moderate.
How do I fix RHSA-2021:1028?
To fix RHSA-2021:1028, upgrade the affected packages to version 3.10.0-1062.46.1.el7 or higher.
What vulnerabilities are addressed in RHSA-2021:1028?
RHSA-2021:1028 addresses use-after-free vulnerabilities in kernel components, notably CVE-2020-29661.
What software is affected by RHSA-2021:1028?
Software affected by RHSA-2021:1028 includes various Red Hat kernel packages such as kernel, bpftool, and their debug counterparts.
Is RHSA-2021:1028 applicable to all Linux distributions?
No, RHSA-2021:1028 specifically applies to Red Hat Enterprise Linux and its derivatives.
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