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):
* Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123)
* Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)
* Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166)
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):
* The latest AlmaLinux 8.6.z3 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2111112)
Fixed packages 12
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | kernel-rt | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-core | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug-core | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug-devel | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug-kvm | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug-modules | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-debug-modules-extra | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-devel | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-kvm | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-modules | 4.18.0-372.26.1.rt7.183.el8_6 |
| AlmaLinux · 8 | kernel-rt-modules-extra | 4.18.0-372.26.1.rt7.183.el8_6 |
Vulnerabilities 3
-
Medium 5.5
Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potenti…
-
Medium 5.5
Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to po…
-
Medium 5.5
Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticate…
References
-
report
https://access.redhat.com/security/cve/CVE-2022-21123
-
report
https://access.redhat.com/security/cve/CVE-2022-21125
-
report
https://access.redhat.com/security/cve/CVE-2022-21166
-
report
https://bugzilla.redhat.com/2090237
-
report
https://bugzilla.redhat.com/2090240
-
report
https://bugzilla.redhat.com/2090241
-
advisory
https://errata.almalinux.org/8/ALSA-2022-6437.html