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

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2022:0777-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0777
Issue date:        2022-03-08
CVE Names:         CVE-2021-0920 CVE-2021-4028 CVE-2022-0330 
                   CVE-2022-0435 CVE-2022-0516 CVE-2022-22942 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.4
Extended Update Support.

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 EUS (v. 8.4) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v.8.4) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

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

Security Fix(es):

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

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

* 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: 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#2016436)

* RHEL8: DFS provided SMB shares are not accessible following unprivileged
access (BZ#2017176)

* xfs: I_DONTCACHE flag is ignored [xfstests: xfs/177] (BZ#2028533)

* spec: Support separate tools build (BZ#2031052)

* block: update to upstream v5.14 (BZ#2034395)

* Double free of kmalloc-64  cache   struct ib_port->pkey_group from module
ib_core  . (BZ#2038723)

* RHEL8 - kvm: floating interrupts may get stuck (BZ#2040768)

* Data corruption on small files served by httpd, which is backed by
cifs-mount (BZ#2041528)

* Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042662)

* DNS lookup failures when run two times in a row (BZ#2043547)

* net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043549)

* Windows guest random Bsod when 'hv-tlbflush' enlightenment is enabled
(BZ#2048342)

* OCP node XFS metadata corruption after numerous reboots (BZ#2049291)

* ice: bug fix series for 8.6 (BZ#2051950)

* SNO 4.9: NO-CARRIER on pod interface using VF on intel E810-C NIC;
IAVF_ERR_ADMIN_QUEUE_ERROR (BZ#2052984)

* ceph omnibus backport for RHEL-8.6.0 (BZ#2053724)

* SCTP peel-off with SELinux and containers in OCP (BZ#2054111)

* Selinux  is not  allowing SCTP connection setup between inter pod
communication in enforcing mode (BZ#2054116)

Enhancement(s):

* [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 [8.4.0.z]
(BZ#2037730)

* [MCHP 8.5 FEAT] Update smartpqi driver to latest upstream [None8.4.0.z]
(BZ#2042498)

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/):

2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
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
2052984 - SNO 4.9: NO-CARRIER on pod interface using VF on intel E810-C NIC; IAVF_ERR_ADMIN_QUEUE_ERROR [rhel-8.4.0.z]

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.4):

Source:
kernel-4.18.0-305.40.1.el8_4.src.rpm

aarch64:
bpftool-4.18.0-305.40.1.el8_4.aarch64.rpm
bpftool-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-core-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-cross-headers-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-core-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-devel-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-modules-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-modules-extra-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-devel-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-headers-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-modules-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-modules-extra-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-tools-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-tools-libs-4.18.0-305.40.1.el8_4.aarch64.rpm
perf-4.18.0-305.40.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
python3-perf-4.18.0-305.40.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm

noarch:
kernel-abi-stablelists-4.18.0-305.40.1.el8_4.noarch.rpm
kernel-doc-4.18.0-305.40.1.el8_4.noarch.rpm

ppc64le:
bpftool-4.18.0-305.40.1.el8_4.ppc64le.rpm
bpftool-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-core-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-cross-headers-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-core-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-devel-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-modules-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-devel-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-headers-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-modules-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-modules-extra-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-tools-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-tools-libs-4.18.0-305.40.1.el8_4.ppc64le.rpm
perf-4.18.0-305.40.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
python3-perf-4.18.0-305.40.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm

s390x:
bpftool-4.18.0-305.40.1.el8_4.s390x.rpm
bpftool-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-core-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-cross-headers-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-core-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-devel-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-modules-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debug-modules-extra-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-devel-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-headers-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-modules-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-modules-extra-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-tools-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-core-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-devel-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-4.18.0-305.40.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-305.40.1.el8_4.s390x.rpm
perf-4.18.0-305.40.1.el8_4.s390x.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm
python3-perf-4.18.0-305.40.1.el8_4.s390x.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.s390x.rpm

x86_64:
bpftool-4.18.0-305.40.1.el8_4.x86_64.rpm
bpftool-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-core-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-cross-headers-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-core-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-devel-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-modules-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-modules-extra-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-devel-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-headers-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-modules-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-modules-extra-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-tools-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-tools-libs-4.18.0-305.40.1.el8_4.x86_64.rpm
perf-4.18.0-305.40.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
python3-perf-4.18.0-305.40.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v. 8.4):

aarch64:
bpftool-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
kernel-tools-libs-devel-4.18.0-305.40.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-305.40.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
kernel-tools-libs-devel-4.18.0-305.40.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.40.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.40.1.el8_4.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-2021-4028
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-2022-0516
https://access.redhat.com/security/cve/CVE-2022-22942
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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