{"id":"ALSA-2023:0854","summary":"Important: 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.\n\nSecurity Fix(es):\n\n* kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)\n* kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)\n* kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873)\n\nFor 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.\n\nBug Fix(es):\n\n* AlmaLinux8-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204)\n* SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062)\n* Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel  [RT-8] (BZ#2139851)\n* scheduling while atomic in fpu_clone() -\u003e fpu_inherit_perms() (BZ#2154469)\n* 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)","modified":"2026-01-30T02:21:04.055318Z","published":"2023-02-21T00:00:00Z","related":["CVE-2022-2873","CVE-2022-41222","CVE-2022-43945"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:0854"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-2873"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-41222"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-43945"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2119048"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2138818"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2141752"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2023-0854.html"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug-kvm","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-kvm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-debug-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-kvm","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-kvm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}},{"package":{"name":"kernel-rt-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-425.13.1.rt7.223.el8_7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0854.json"}}],"schema_version":"1.7.3"}