{"id":"RLSA-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\n* kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)\n\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* Rocky Linux8-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204)\n\n* SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062)\n\n* Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel  [RT-8] (BZ#2139851)\n\n* scheduling while atomic in fpu_clone() -\u003e fpu_inherit_perms() (BZ#2154469)\n\n* The latest Rocky Linux 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":"2026-02-05T03:30:08.044137Z","published":"2023-02-22T01:08:59.051614Z","upstream":["CVE-2022-2873","CVE-2022-41222","CVE-2022-43945"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2023:0854"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2119048"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2138818"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2141752"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-425.13.1.rt7.223.el8_7"}],"database_specific":{"yum_repository":"NFV"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2023:0854.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}