Issued:

2022-04-26

Updated:

2022-04-26

RHSA-2022:1550 - Important: kernel security and bug fix update

Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: use-after-free in RDMA listen() (CVE-2021-4028)

• kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)

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):

• Backport DFS fixes from upstream (BZ#2056329)

• [RHEL8.5] lpfc driver often fails to detect storage directly connected to Broadcom FC HBA (BZ#2058193)

• nf_reinject calls nf_queue_entry_free on an already freed entry->state (BZ#2061446)

• gfs2 blocking in gdlm_lock (BZ#2069750)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

Updated Packages

• kernel-debuginfo-common-s390x-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-modules-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-zfcpdump-modules-extra-4.18.0-348.23.1.el8_5.s390x.rpm
• perf-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-zfcpdump-devel-4.18.0-348.23.1.el8_5.s390x.rpm
• perf-4.18.0-348.23.1.el8_5.x86_64.rpm
• bpftool-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debuginfo-common-x86_64-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-core-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-modules-extra-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-modules-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-modules-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-modules-extra-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-core-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-modules-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-devel-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-modules-extra-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-cross-headers-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-tools-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-tools-libs-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-libs-devel-4.18.0-348.23.1.el8_5.aarch64.rpm
• bpftool-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-tools-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-zfcpdump-modules-4.18.0-348.23.1.el8_5.s390x.rpm
• bpftool-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-core-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debuginfo-common-ppc64le-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-headers-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-modules-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-tools-libs-devel-4.18.0-348.23.1.el8_5.x86_64.rpm
• perf-4.18.0-348.23.1.el8_5.aarch64.rpm
• perf-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• bpftool-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-core-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-cross-headers-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-devel-4.18.0-348.23.1.el8_5.aarch64.rpm
• bpftool-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-zfcpdump-core-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-4.18.0-348.23.1.el8_5.src.rpm
• bpftool-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-devel-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-tools-libs-4.18.0-348.23.1.el8_5.aarch64.rpm
• python3-perf-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-tools-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• perf-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-devel-4.18.0-348.23.1.el8_5.ppc64le.rpm
• python3-perf-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-tools-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-abi-stablelists-4.18.0-348.23.1.el8_5.noarch.rpm
• kernel-debug-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-core-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-core-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-devel-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-devel-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• python3-perf-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-cross-headers-4.18.0-348.23.1.el8_5.ppc64le.rpm
• python3-perf-4.18.0-348.23.1.el8_5.x86_64.rpm
• python3-perf-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-cross-headers-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-core-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-modules-extra-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-modules-extra-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-libs-4.18.0-348.23.1.el8_5.x86_64.rpm
• python3-perf-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-doc-4.18.0-348.23.1.el8_5.noarch.rpm
• kernel-debug-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-devel-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-modules-extra-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-modules-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-zfcpdump-4.18.0-348.23.1.el8_5.s390x.rpm
• perf-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-headers-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-tools-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debuginfo-common-aarch64-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-debug-devel-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-modules-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-tools-libs-devel-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-core-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-debug-4.18.0-348.23.1.el8_5.s390x.rpm
• perf-4.18.0-348.23.1.el8_5.s390x.rpm
• python3-perf-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-headers-4.18.0-348.23.1.el8_5.aarch64.rpm
• kernel-zfcpdump-debuginfo-4.18.0-348.23.1.el8_5.s390x.rpm
• kernel-debug-modules-extra-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-modules-4.18.0-348.23.1.el8_5.ppc64le.rpm
• bpftool-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-headers-4.18.0-348.23.1.el8_5.x86_64.rpm
• python3-perf-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-debuginfo-4.18.0-348.23.1.el8_5.ppc64le.rpm
• kernel-debug-modules-extra-4.18.0-348.23.1.el8_5.aarch64.rpm
• bpftool-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm
• kernel-debug-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm
• perf-debuginfo-4.18.0-348.23.1.el8_5.x86_64.rpm

Fixes

• This content is not included.BZ - 2027201
• This content is not included.BZ - 2056830

CVEs

• CVE-2021-4028
• CVE-2022-25636

References

• https://access.redhat.com/security/updates/classification/#important

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.