Issued:
2023-01-23
Updated:
2023-01-23

RHSA-2023:0300 - Important: kernel-rt security and bug fix update

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.

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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: watch queue race condition can lead to privilege escalation (CVE-2022-2959)

  • kernel: memory corruption in AX88179_178A based USB ethernet device. (CVE-2022-2964)

  • kernel: i915: Incorrect GPU TLB flush can lead to random memory access (CVE-2022-4139)

  • kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)

  • kernel: i2c: unbounded length leads to buffer overflow in ismt_access() (CVE-2022-3077)

  • kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option (CVE-2022-30594)

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):

  • DELL EMC: System is not booting into RT Kernel with perc12 [kernel-rt] (BZ#2139863)

  • kernel-rt: update RT source tree to the latest RHEL-9.1.z1 Batch (BZ#2141817)

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

ProductVersionArch
Red Hat Enterprise Linux for x86_649x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.6x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.4x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.2x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support9.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support9.4x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle9.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle9.4x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle9.2x86_64

Updated Packages

  • kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.src.rpm
  • kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-devel-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-kvm-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-devel-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-core-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-modules-extra-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-modules-extra-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debuginfo-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-core-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-debuginfo-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-kvm-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-debug-modules-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
  • kernel-rt-modules-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm

Fixes

CVEs

References

Additional information