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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2022:0825-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0825
Issue date:        2022-03-10
CVE Names:         CVE-2021-0920 CVE-2021-4154 CVE-2022-0330 
                   CVE-2022-0435 CVE-2022-0492 CVE-2022-0516 
                   CVE-2022-0847 CVE-2022-22942 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

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

The following packages have been upgraded to a later upstream version:
kernel (4.18.0). (BZ#2036888)

Security Fix(es):

* kernel: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)

* kernel: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)

* kernel: local privilege escalation by exploiting the fsconfig syscall
parameter leads to container breakout (CVE-2021-4154)

* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)

* kernel: remote stack overflow via kernel panic on systems using TIPC may
lead to DoS (CVE-2022-0435)

* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)

* kernel: missing check in ioctl allows kernel memory read/write
(CVE-2022-0516)

* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)

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):

* Intel QAT Kernel power up fix (BZ#2016437)

* RHEL8.4 seeing scsi_dma_map failed with mpt3sas driver and affecting
performance (BZ#2018928)

* [Lenovo 8.4 bug] audio_HDMI certification failed on RHEL 8.4GA (No hdmi
out) (BZ#2027335)

* [RHEL-8.5][4.18.0-323.el8.ppc64le][POWER8/9/10] security_flavor mode is
not set back to zero post online migration (BZ#2027448)

* iommu/amd: Fix unable to handle page fault due to AVIC (BZ#2030854)

* [Lenovo 8.4 bug]The VGA display shows no signal (black screen) when
install RHEL8.4(beta or rc1) in the legacy BIOS mode. (BZ#2034949)

* Double free of kmalloc-64  cache   struct ib_port->pkey_group from module
ib_core  . (BZ#2038724)

* Bus error with huge pages enabled (BZ#2039015)

* RHEL8 - kvm: floating interrupts may get stuck (BZ#2040769)

* Data corruption on small files served by httpd, which is backed by
cifs-mount (BZ#2041529)

* Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042663)

* Windows guest random Bsod when 'hv-tlbflush' enlightenment is enabled
(BZ#2043237)

* DNS lookup failures when run two times in a row (BZ#2043548)

* net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043550)

* Kernel 4.18.0-348.2.1 secpath_cache memory leak involving strongswan
tunnel (BZ#2047427)

* OCP node XFS metadata corruption after numerous reboots (BZ#2049292)

* Broadcom bnxt_re: RDMA stats are not incrementing (BZ#2049684)

* ice: bug fix series for 8.6 (BZ#2051951)

* panic while looking up a symlink due to NULL i_op->get_link (BZ#2052558)

* ceph omnibus backport for RHEL-8.6.0 (BZ#2053725)

* SCTP peel-off with SELinux and containers in OCP (BZ#2054112)

* Selinux  is not  allowing SCTP connection setup between inter pod
communication in enforcing mode (BZ#2054117)

* dnf fails with fsync() over local repository present on CIFS mount point
(BZ#2055824)

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS
2050237 - CVE-2022-0516 kernel: missing check in ioctl allows kernel memory read/write
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kernel-4.18.0-348.20.1.el8_5.src.rpm

aarch64:
bpftool-4.18.0-348.20.1.el8_5.aarch64.rpm
bpftool-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-core-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-cross-headers-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-core-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-devel-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-modules-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-modules-extra-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-devel-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-headers-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-modules-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-modules-extra-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-tools-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-tools-libs-4.18.0-348.20.1.el8_5.aarch64.rpm
perf-4.18.0-348.20.1.el8_5.aarch64.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
python3-perf-4.18.0-348.20.1.el8_5.aarch64.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm

noarch:
kernel-abi-stablelists-4.18.0-348.20.1.el8_5.noarch.rpm
kernel-doc-4.18.0-348.20.1.el8_5.noarch.rpm

ppc64le:
bpftool-4.18.0-348.20.1.el8_5.ppc64le.rpm
bpftool-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-core-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-cross-headers-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-core-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-devel-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-modules-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-devel-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-headers-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-modules-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-modules-extra-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-tools-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-tools-libs-4.18.0-348.20.1.el8_5.ppc64le.rpm
perf-4.18.0-348.20.1.el8_5.ppc64le.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
python3-perf-4.18.0-348.20.1.el8_5.ppc64le.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm

s390x:
bpftool-4.18.0-348.20.1.el8_5.s390x.rpm
bpftool-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-core-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-cross-headers-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-core-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-devel-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-modules-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debug-modules-extra-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-devel-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-headers-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-modules-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-modules-extra-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-tools-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-core-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-devel-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-modules-4.18.0-348.20.1.el8_5.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-348.20.1.el8_5.s390x.rpm
perf-4.18.0-348.20.1.el8_5.s390x.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm
python3-perf-4.18.0-348.20.1.el8_5.s390x.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.s390x.rpm

x86_64:
bpftool-4.18.0-348.20.1.el8_5.x86_64.rpm
bpftool-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-core-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-cross-headers-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-core-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-devel-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-modules-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-modules-extra-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-devel-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-headers-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-modules-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-modules-extra-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-tools-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-tools-libs-4.18.0-348.20.1.el8_5.x86_64.rpm
perf-4.18.0-348.20.1.el8_5.x86_64.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
python3-perf-4.18.0-348.20.1.el8_5.x86_64.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
bpftool-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
kernel-tools-libs-devel-4.18.0-348.20.1.el8_5.aarch64.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-348.20.1.el8_5.ppc64le.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debug-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-tools-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
kernel-tools-libs-devel-4.18.0-348.20.1.el8_5.x86_64.rpm
perf-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm
python3-perf-debuginfo-4.18.0-348.20.1.el8_5.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-0920
https://access.redhat.com/security/cve/CVE-2021-4154
https://access.redhat.com/security/cve/CVE-2022-0330
https://access.redhat.com/security/cve/CVE-2022-0435
https://access.redhat.com/security/cve/CVE-2022-0492
https://access.redhat.com/security/cve/CVE-2022-0516
https://access.redhat.com/security/cve/CVE-2022-0847
https://access.redhat.com/security/cve/CVE-2022-22942
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2022-002

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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