{"id":"SUSE-SU-2026:21512-1","summary":"Security update for the Linux Kernel RT (Live Patch 12 for SUSE Linux Enterprise Micro 6.0)","details":"\nThis update for the SUSE Linux Enterprise Kernel 6.4.0-36.1 fixes various security issues\n\nThe following security issues were fixed:\n\n- CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252048).\n- CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change\n  (bsc#1258005).\n- CVE-2026-23004: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (bsc#1258655).\n- CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1259126).\n- CVE-2026-31431: crypto: algif_aead - Revert to operating out-of-place (bsc#1263689).\n\n","modified":"2026-05-08T18:24:35.375304Z","published":"2026-05-05T13:07:21Z","related":["CVE-2025-39977","CVE-2025-71066","CVE-2026-23004","CVE-2026-23204","CVE-2026-31431"],"upstream":["CVE-2025-39977","CVE-2025-71066","CVE-2026-23004","CVE-2026-23204","CVE-2026-31431"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-202621512-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252048"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258005"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258655"},{"type":"REPORT","url":"https://bugzilla.suse.com/1259126"},{"type":"REPORT","url":"https://bugzilla.suse.com/1263689"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-39977"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-71066"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23004"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23204"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-31431"}],"schema_version":"1.7.5"}