Issued:

2021-07-20

Updated:

2021-07-20

RHSA-2021:2714 - 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: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)

• kernel: race condition for removal of the HCI controller (CVE-2021-32399)

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):

• pinctrl_emmitsburg: improper configuration (BZ#1963984)

• [Ampere] locking/qrwlock: Fix ordering in queued_write_lock_slowpath (BZ#1964419)

• RHEL8.4 - [P10] [NPIV Multi queue Test kernel- 4.18.0-283.el8.ibmvfc_11022021.ppc64le] DLPAR operation fails for ibmvfc on Denali (ibmvfc/dlpar/RHEL8.4) (BZ#1964697)

• Every server is displaying the same power levels for all of our i40e 25G interfaces. 10G interfaces seem to be correct. Ethtool version is 5.0 (BZ#1967099)

• backport fixes for Connection Tracking offload (BZ#1968679)

• fm10k: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969910)

• ixgbevf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969911)

• ena: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969913)

• b44, bnx2, bnx2x, bnxt, tg3: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969914)

• e1000, e1000e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969915)

• ice: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969917)

• igb: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969919)

• igbvf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969920)

• igc: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969921)

• ixgbe: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969922)

• i40e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969923)

• iavf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969925)

• Backport netlink extack tracepoint (BZ#1972938)

• [RHEL8.4] kernel panic when create NPIV port on qedf driver (BZ#1974968)

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-abi-stablelists-4.18.0-305.10.2.el8_4.noarch.rpm
• kernel-cross-headers-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debuginfo-common-aarch64-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-modules-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-modules-extra-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-devel-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-tools-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• perf-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• bpftool-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-headers-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debug-modules-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-cross-headers-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-doc-4.18.0-305.10.2.el8_4.noarch.rpm
• python3-perf-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• perf-4.18.0-305.10.2.el8_4.ppc64le.rpm
• perf-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-devel-4.18.0-305.10.2.el8_4.aarch64.rpm
• perf-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• python3-perf-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• bpftool-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debuginfo-common-x86_64-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-modules-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• bpftool-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-devel-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-cross-headers-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debuginfo-common-ppc64le-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-tools-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-devel-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-tools-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-core-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-devel-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-core-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-devel-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-tools-libs-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-tools-libs-4.18.0-305.10.2.el8_4.ppc64le.rpm
• bpftool-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debug-devel-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-tools-4.18.0-305.10.2.el8_4.aarch64.rpm
• bpftool-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-modules-extra-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-zfcpdump-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-headers-4.18.0-305.10.2.el8_4.s390x.rpm
• bpftool-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debug-core-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-tools-libs-devel-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-zfcpdump-core-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-zfcpdump-modules-extra-4.18.0-305.10.2.el8_4.s390x.rpm
• perf-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-tools-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debug-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-zfcpdump-devel-4.18.0-305.10.2.el8_4.s390x.rpm
• perf-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• python3-perf-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-devel-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-modules-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-modules-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-modules-extra-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-modules-extra-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-modules-extra-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-tools-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-tools-libs-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-modules-extra-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• bpftool-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-tools-debuginfo-4.18.0-305.10.2.el8_4.ppc64le.rpm
• python3-perf-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• bpftool-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-tools-libs-devel-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-core-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-modules-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-modules-4.18.0-305.10.2.el8_4.aarch64.rpm
• perf-4.18.0-305.10.2.el8_4.aarch64.rpm
• python3-perf-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-cross-headers-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-core-4.18.0-305.10.2.el8_4.ppc64le.rpm
• python3-perf-debuginfo-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-core-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debuginfo-common-s390x-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-headers-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-modules-extra-4.18.0-305.10.2.el8_4.ppc64le.rpm
• kernel-tools-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-debug-core-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-zfcpdump-modules-4.18.0-305.10.2.el8_4.s390x.rpm
• python3-perf-4.18.0-305.10.2.el8_4.x86_64.rpm
• perf-debuginfo-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-zfcpdump-debuginfo-4.18.0-305.10.2.el8_4.s390x.rpm
• kernel-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-headers-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-tools-libs-devel-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-4.18.0-305.10.2.el8_4.src.rpm
• python3-perf-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-debug-modules-extra-4.18.0-305.10.2.el8_4.aarch64.rpm
• kernel-core-4.18.0-305.10.2.el8_4.x86_64.rpm
• kernel-debug-modules-4.18.0-305.10.2.el8_4.x86_64.rpm

Fixes

• This content is not included.BZ - 1970273
• This content is not included.BZ - 1970807

CVEs

• CVE-2021-32399
• CVE-2021-33909

References

• https://access.redhat.com/security/updates/classification/#important
• This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

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.