RedHat: RHSA-2022-0822:01 Important: kernel-rt security update
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: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)
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.
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2022-0847 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-002
Package List
Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4):
Source:
kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.src.rpm
x86_64:
kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-kvm-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
Red Hat Enterprise Linux Real Time EUS (v.8.4):
Source:
kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.src.rpm
x86_64:
kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.40.2.rt7.113.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/
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4Extended 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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Real Time EUS (v.8.4) - x86_64
Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4) - x86_64
Bugs Fixed
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer