RLSA-2021:3440
Moderate: kernel-rt security and bug fix update
Topic
An update is available for kernel-rt.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
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: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c (CVE-2021-38201)
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):
* OSLAT spikes on subset of cpus (BZ#1986063)
* kernel-rt: update RT source tree to the Rocky Linux-8.4.z source tree (BZ#1990013)
* Failure to enter full_nohz due to needless SCHED softirqs (BZ#1990272)
* kernel-rt: Make rcu_normal_after_boot writable (BZ#1995431)
Rocky Linux 8
SRPMs
- kernel-rt-0:4.18.0-305.17.1.rt7.89.el8_4.src.rpm
RPMs
- kernel-rt-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-core-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-core-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-debuginfo-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-devel-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debuginfo-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debuginfo-common-x86_64-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-modules-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-debug-modules-extra-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-devel-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-modules-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
- kernel-rt-modules-extra-0:4.18.0-305.17.1.rt7.89.el8_4.x86_64.rpm
Issued: 9/7/2021
Type: Security
Severity: Moderate
Affected Product
- Rocky Linux 8
Fixes
References
- No references