{"id":"RLSA-2023:1584","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: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)\n\n* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)\n\n* kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386)\n\n* kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)\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* Lazy irq_work does not raise softirq on PREEMPT_RT [rhel-8] (BZ#2172163)\n\n* The latest Rocky Linux 8.7.z3 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2172278)","modified":"2026-03-11T06:18:06.191040Z","published":"2023-04-26T15:28:18.591743Z","upstream":["CVE-2022-4269","CVE-2022-4378","CVE-2023-0266","CVE-2023-0386"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2023:1584"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2150272"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2152548"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2159505"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2163379"}],"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":"0:4.18.0-425.19.2.rt7.230.el8_7"}],"database_specific":{"yum_repository":"NFV"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2023:1584.json"}}],"schema_version":"1.7.5","credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}