RLSA-2021:3440

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Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2021:3440.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2021:3440
Related
Published
2021-09-07T14:16:43Z
Modified
2023-02-02T14:11:07.646195Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Moderate: kernel-rt security and bug fix update
Details

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 xdrsetpage_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 rcunormalafter_boot writable (BZ#1995431)

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel-rt

Package

Name
kernel-rt
Purl
pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8-4-legacy&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-305.17.1.rt7.89.el8_4