{"id":"ALSA-2026:82806","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: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678)\n  * kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920)\n  * kernel: drm/amd/display: set new_stream to NULL after release (CVE-2026-68236)\n  * kernel: drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CVE-2026-68278)\n  * kernel: wifi: mac80211: defer link RX stats percpu free to RCU (CVE-2026-68409)\n  * kernel: drm/amdgpu/vce: fix integer overflow in image size (CVE-2026-68108)\n  * kernel: drm/vmwgfx: use check_add_overflow for shader size+offset bound (CVE-2026-80887)\n  * kernel: drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CVE-2026-89811)\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":"2026-10-14T15:12:03.771145636Z","published":"2026-10-14T00:00:00Z","related":["CVE-2026-31678","CVE-2026-63920","CVE-2026-68108","CVE-2026-68236","CVE-2026-68278","CVE-2026-68409","CVE-2026-80887","CVE-2026-89811"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:82806"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-31678"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-63920"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68108"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68236"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68278"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68409"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-80887"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-89811"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2461761"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2502330"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2513148"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2513287"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2513299"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2513361"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2528788"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535309"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-82806.html"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.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":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.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":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.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":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.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":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:82806.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":"4.18.0-553.173.1.rt7.514.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/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