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: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)
* kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)
* kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873)
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):
* AlmaLinux8-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204)
* SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062)
* Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel [RT-8] (BZ#2139851)
* scheduling while atomic in fpu_clone() -> fpu_inherit_perms() (BZ#2154469)
* The latest AlmaLinux 8.7.z2 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2159806)
Fixed packages 12
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | kernel-rt | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-core | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug-core | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug-devel | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug-kvm | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug-modules | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-debug-modules-extra | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-devel | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-kvm | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-modules | 4.18.0-425.13.1.rt7.223.el8_7 |
| AlmaLinux · 8 | kernel-rt-modules-extra | 4.18.0-425.13.1.rt7.223.el8_7 |
Vulnerabilities 3
-
High 7.5
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks…
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High 7.0
mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held dur…
-
Unscored —
An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way …
References
-
report
https://access.redhat.com/security/cve/CVE-2022-2873
-
report
https://access.redhat.com/security/cve/CVE-2022-41222
-
report
https://access.redhat.com/security/cve/CVE-2022-43945
-
report
https://bugzilla.redhat.com/2119048
-
report
https://bugzilla.redhat.com/2138818
-
report
https://bugzilla.redhat.com/2141752
-
advisory
https://errata.almalinux.org/8/ALSA-2023-0854.html