RHSA-2022:6003MediumCVSS 7.8

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published
August 9, 2022
Last Modified
October 30, 2026

🔗 CVE IDs covered (4)

CVE-2022-0494 →CVE-2022-1055 →CVE-2022-48943 →CVE-2022-49418 →

📋 Description

CVE-2022-0494 — kernel: information leak in scsi_ioctl() CVE-2022-1055 — kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c CVE-2022-48943 — kernel: KVM: x86/mmu: make apf token non-zero to fix bug CVE-2022-49418 — kernel: NFSv4: Fix free of uninitialized nfs4_label on referral lookup.

🎯 Affected products169

  • Red Hat CodeReady Linux Builder (v. 9)
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.22.1.el9_0.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-abi-stablelists-0:5.14.0-70.22.1.el9_0.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.22.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.22.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.22.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-debug-0:5.14.0-70.22.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • +139 more not shown

✅ Remediation

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. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: On non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0: # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf On containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.

🔗 References (5)