{"id":"RLSA-2026:1148","summary":"Important: kernel-rt security 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: Bluetooth: hci_event: call disconnect callback before deleting conn (CVE-2023-53673)\n\n* kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping (CVE-2025-40154)\n\n* kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)\n\n* kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (CVE-2025-40277)\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.","modified":"2026-02-03T17:45:08.476420Z","published":"2026-02-03T17:20:09.195545Z","upstream":["CVE-2023-53673","CVE-2025-40154","CVE-2025-40248","CVE-2025-40277"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:1148"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2402193"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2414494"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2418872"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2419954"}],"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":"0:4.18.0-553.97.1.rt7.438.el8_10"}],"database_specific":{"yum_repository":"NFV"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:1148.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}