RHSA-2023:0300HighCVSS 7.8

Red Hat Security Advisory: kernel-rt security and bug fix update

Published
January 23, 2023
Last Modified
October 14, 2026

🔗 CVE IDs covered (6)

CVE-2022-2959 →CVE-2022-2964 →CVE-2022-3077 →CVE-2022-4139 →CVE-2022-30594 →CVE-2022-43945 →

📋 Description

CVE-2022-2959 — kernel: watch queue race condition can lead to privilege escalation CVE-2022-2964 — kernel: memory corruption in AX88179_178A based USB ethernet device. CVE-2022-3077 — kernel: i2c: unbounded length leads to buffer overflow in ismt_access() CVE-2022-4139 — kernel: i915: Incorrect GPU TLB flush can lead to random memory access CVE-2022-30594 — kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option CVE-2022-43945 — kernel: nfsd buffer overflow by RPC message over TCP with garbage data

🎯 Affected products32

  • Red Hat Enterprise Linux Real Time (v. 9)
  • Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-0:5.14.0-162.12.1.rt21.175.el9_1.src as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-0:5.14.0-162.12.1.rt21.175.el9_1.src as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-core-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-core-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-core-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-core-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-debuginfo-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-debuginfo-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-devel-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-devel-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-kvm-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-modules-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-modules-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debug-modules-extra-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debug-modules-extra-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debuginfo-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debuginfo-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-devel-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-devel-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-kvm-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • kernel-rt-modules-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
  • kernel-rt-modules-0:5.14.0-162.12.1.rt21.175.el9_1.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 9)
  • +2 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 does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: This flaw can be mitigated by preventing the i2c-ismt module from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from being loaded automatically. 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: If ptrace is not required, ptrace can be disabled in multiple ways. 1. SELinux policy. # setsebool -P deny_ptrace on 2. Kernel sysctl. # sysctl -w kernel.yama.ptrace_scope=3 Or to make persistent , create /etc/sysctl.d/99-yama-ptrace_scope.conf kernel.yama.ptrace_scope=3 If you need further assistance, see the KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.

🔗 References (9)