RHSA-2022:6983: Important: kernel security, bug fix, and enhancement update
First published: Tue Oct 18 2022(Updated: )
The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>The following packages have been upgraded to a later upstream version: kernel (4.18.0).<br>Security Fix(es):<br><li> A use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)</li> <li> Information leak in the IPv6 implementation (CVE-2021-45485)</li> <li> Information leak in the IPv4 implementation (CVE-2021-45486)</li> <li> Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123)</li> <li> Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)</li> <li> Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166)</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> DR, Ignore modify TTL if ConnectX-5 doesn't support it (BZ#2075549)</li> <li> execve exit tracepoint not called (BZ#2106663)</li> <li> Unable to boot RHEL-8.6 on Brazos max. config (Install is success) (BZ#2107475)</li> <li> "vmcore failed, _exitcode:139" error observed while capturing vmcore during fadump after memory remove. incomplete vmcore is captured. (BZ#2107490)</li> <li> soft lockups under heavy I/O load to ahci connected SSDs (BZ#2110773)</li> <li> Allow substituting custom vmlinux.h for the build (BZ#2116407)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-abi-stablelists | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-cross-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-doc | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-libs | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-cross-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debuginfo-common-s390x | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-zfcpdump-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-cross-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-core | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debug-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-debuginfo-common-ppc64le | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-headers | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-modules-extra | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-libs | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/python3-perf-debuginfo | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/bpftool | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/bpftool-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-core | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-cross-headers | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug-core | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug-devel | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug-modules | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debug-modules-extra | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-debuginfo-common-aarch64 | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-devel | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-headers | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-modules | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-modules-extra | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-tools | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-tools-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-tools-libs | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/perf | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/perf-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/python3-perf | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/python3-perf-debuginfo | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
| redhat/kernel-tools-libs-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-libs-devel | <4.18.0-305.65.1.el8_4 | 4.18.0-305.65.1.el8_4 |
| redhat/kernel-tools-libs-devel | <4.18.0-305.65.1.el8_4.aa | 4.18.0-305.65.1.el8_4.aa |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2039911
- https://bugzilla.redhat.com/show_bug.cgi?id=2039914
- https://bugzilla.redhat.com/show_bug.cgi?id=2090237
- https://bugzilla.redhat.com/show_bug.cgi?id=2090240
- https://bugzilla.redhat.com/show_bug.cgi?id=2090241
- https://bugzilla.redhat.com/show_bug.cgi?id=2114849
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/errata/RHSA-2022:6983 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2022:6983?
The severity of RHSA-2022:6983 is considered critical due to a use-after-free vulnerability in the Linux kernel.
How do I fix RHSA-2022:6983?
To fix RHSA-2022:6983, update your system to version 4.18.0-305.65.1.el8_4 or later of the affected kernel packages.
Which packages need to be updated for RHSA-2022:6983?
For RHSA-2022:6983, you need to update the kernel, kernel-core, kernel-devel, and other associated kernel packages.
What systems are affected by RHSA-2022:6983?
RHSA-2022:6983 affects systems running Red Hat Enterprise Linux 8 that utilize the vulnerable kernel version.
Is there a workaround for RHSA-2022:6983?
There is no known workaround for RHSA-2022:6983; updating to the latest version is the recommended action to mitigate the risk.
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