RHSA-2020:2428: Important: kernel-rt security and bug fix update
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: use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody (CVE-2020-12657) 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: hw: provide reporting and microcode mitigation toggle for CVE-2020-0543 / Special Register Buffer Data Sampling (SRBDS) (BZ#1827193) kernel-rt: update RT source tree to the RHEL-8.2.z1 source tree (BZ#1816271)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2020:2428?
The severity of RHSA-2020:2428 is classified as important.
What vulnerability is addressed by RHSA-2020:2428?
RHSA-2020:2428 addresses a use-after-free vulnerability in the block/bfq-iosched.c file related to the bfq_idle_slice_timer_body function (CVE-2020-12657).
How do I fix RHSA-2020:2428?
To fix RHSA-2020:2428, upgrade the kernel-rt packages to version 4.18.0-193.6.3.rt13.59.el8_2 or later.
Which packages are affected by RHSA-2020:2428?
The affected packages in RHSA-2020:2428 include kernel-rt, kernel-rt-core, kernel-rt-debug, and several related kernel-rt-debug packages.
How can I verify if my system is vulnerable to RHSA-2020:2428?
To verify if your system is vulnerable to RHSA-2020:2428, check the installed version of the kernel-rt packages against the remedied version of 4.18.0-193.6.3.rt13.59.el8_2.