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Alerts This Week
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Red Hat 9.0: RHSA-2023-0526-01 Important: Kernel-RT Memory Corruption DoS

red hat
Calendar Grey January 30, 2023
Scroller Redhat
The recent kernel-rt patch from Red Hat tackles significant vulnerabilities and system bugs. Make sure your environment is fortified and fully updated.
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support

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.

Summary

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: 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)
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):
* kernel-rt: update RT source tree to the latest RHEL-9.0.z6 Batch (BZ#2149955)
* DELL 9.0 RT: On PE R760 system, call traces are observed dmesg when system is running stress (BZ#2154426)
* RT Debug bug: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46 (BZ#2160774)

Topics%20covered

Topics Covered

security advisory update DoS memory corruption Red Hat Enterprise Linux important kernel-rt

References

https://access.redhat.com/security/cve/CVE-2022-2964 https://access.redhat.com/security/cve/CVE-2022-4139 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0):
Source: kernel-rt-5.14.0-70.43.1.rt21.114.el9_0.src.rpm
x86_64: kernel-rt-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-kvm-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-kvm-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm
Red Hat Enterprise Linux Real Time EUS (v.9.0):
Source: kernel-rt-5.14.0-70.43.1.rt21.114.el9_0.src.rpm
x86_64: kernel-rt-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.43.1.rt21.114.el9_0.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0526-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0526
Issue date: 2023-01-30

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update DoS memory corruption Red Hat Enterprise Linux important kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux Real Time EUS (v.9.0) - x86_64

Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) - x86_64

Bugs Fixed

2067482 - CVE-2022-2964 kernel: memory corruption in AX88179_178A based USB ethernet device.

2147572 - CVE-2022-4139 kernel: i915: Incorrect GPU TLB flush can lead to random memory access

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