{"id":"ALSA-2026:87374","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: ipv4: raw: reject IP_HDRINCL packets with ihl \u003c 5 (CVE-2026-64114)\n  * kernel: fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)\n  * kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)\n  * kernel: ALSA: seq: close a re-opened queue timer in the destructor (CVE-2026-68202)\n  * kernel: xfs: bounds-check buffer log item's dirty bitmap (CVE-2026-80536)\n  * kernel: inet: frags: strip GSO state from fragments before reassembly (CVE-2026-80590)\n  * kernel: vfio/pci: clear vdev-\u003emsi_perm after freeing it on init failure (CVE-2026-89777)\n\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","modified":"2026-10-22T11:30:02.500363462Z","published":"2026-10-21T00:00:00Z","related":["CVE-2026-64114","CVE-2026-64266","CVE-2026-64572","CVE-2026-68202","CVE-2026-80536","CVE-2026-80590","CVE-2026-89777"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:87374"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64114"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64266"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64572"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68202"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-80536"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-80590"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-89777"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2502486"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2507098"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2511413"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2513245"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2524501"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2525413"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535066"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-87374.html"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.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":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.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":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.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":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.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":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.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":"4.18.0-553.177.1.rt7.518.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:87374.json"}}],"schema_version":"1.9.0"}