{"id":"RLSA-2026:77500","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: vsock/vmci: fix UAF when peer resets connection during handshake (CVE-2026-64115)\n\n* kernel: packet: use consistent hard_header_len in non-ring send paths ()\n\n* kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)\n\n* kernel: svcrdma: Reject inline replies that overflow the pull-up buffer (CVE-2026-89530)\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":"2026-10-09T06:45:02.635477635Z","published":"2026-10-09T06:05:01.253377Z","upstream":["CVE-2026-64115","CVE-2026-74582","CVE-2026-89530"],"database_specific":{"source_advisory":"RHSA-2026:77500","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:77500"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502593"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2519475"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532218"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:77500"}],"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":"0:4.18.0-553.172.1.rt7.513.el8_10"}],"database_specific":{"yum_repository":"NFV"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:77500.json"}}],"schema_version":"1.9.0","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"}]}