{"schemaVersion":3,"id":"SUSE-SU-2026:1077-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for the Linux Kernel\n\n\nThe SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues\n\nThe following security issues were fixed:\n\n- CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer (bsc#1238917).\n- CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).\n- CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change\n  (bsc#1256645).\n- CVE-2026-23004: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (bsc#1257231).\n- CVE-2026-23060: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec (bsc#1257735).\n- CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1257749).\n- CVE-2026-23089: ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() (bsc#1257790).\n- CVE-2026-23191: ALSA: aloop: Fix racy access at PCM trigger (bsc#1258395).\n- CVE-2026-23204: net: add skb_header_pointer_careful() helper (bsc#1258340).\n- CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258518).\n- CVE-2026-23268: apparmor: fix unprivileged local user can do privileged policy management (bsc#1258850).\n- CVE-2026-23269: apparmor: validate DFA start states are in bounds in unpack_pdb (bsc#1259857).\n\nThe following non security issues were fixed:\n\n- apparmor: fix differential encoding verification (bsc#1258849).\n- apparmor: Fix double free of ns_name in aa_replace_profiles() (bsc#1258849).\n- apparmor: fix memory leak in verify_header (bsc#1258849).\n- apparmor: fix missing bounds check on DEFAULT table in verify_dfa() (bsc#1258849).\n- apparmor: fix race between freeing data and fs accessing it (bsc#1258849).\n- apparmor: fix race on rawdata dereference (bsc#1258849).\n- apparmor: fix side-effect bug in match_char() macro usage (bsc#1258849).\n- apparmor: fix unprivileged local user can do privileged policy management (bsc#1258849).\n- apparmor: fix: limit the number of levels of policy namespaces (bsc#1258849).\n- apparmor: replace recursive profile removal with iterative approach (bsc#1258849).\n- apparmor: validate DFA start states are in bounds in unpack_pdb (bsc#1258849).","dates":{"published":"2026-03-26T12:42:31.000Z","modified":"2026-03-27T08:48:32.830Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"suse","product":"kernel-rt&distro=SUSE Linux Enterprise Micro 5.5","name":"kernel-rt","label":"kernel-rt&distro=SUSE Linux 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5.14.21-150500.13.124.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20261077-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-20261077-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1238917","label":"bugzilla.suse.com/1238917","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1255075","label":"bugzilla.suse.com/1255075","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1256645","label":"bugzilla.suse.com/1256645","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257231","label":"bugzilla.suse.com/1257231","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257473","label":"bugzilla.suse.com/1257473","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257732","label":"bugzilla.suse.com/1257732","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257735","label":"bugzilla.suse.com/1257735","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257749","label":"bugzilla.suse.com/1257749","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1257790","label":"bugzilla.suse.com/1257790","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1258340","label":"bugzilla.suse.com/1258340","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1258395","label":"bugzilla.suse.com/1258395","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1258518","label":"bugzilla.suse.com/1258518","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1258849","label":"bugzilla.suse.com/1258849","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1258850","label":"bugzilla.suse.com/1258850","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1259857","label":"bugzilla.suse.com/1259857","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21738","label":"www.suse.com/security/cve/CVE-2025-21738","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-40242","label":"www.suse.com/security/cve/CVE-2025-40242","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-71066","label":"www.suse.com/security/cve/CVE-2025-71066","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23004","label":"www.suse.com/security/cve/CVE-2026-23004","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23054","label":"www.suse.com/security/cve/CVE-2026-23054","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23060","label":"www.suse.com/security/cve/CVE-2026-23060","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23074","label":"www.suse.com/security/cve/CVE-2026-23074","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23089","label":"www.suse.com/security/cve/CVE-2026-23089","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23191","label":"www.suse.com/security/cve/CVE-2026-23191","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23204","label":"www.suse.com/security/cve/CVE-2026-23204","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23209","label":"www.suse.com/security/cve/CVE-2026-23209","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23268","label":"www.suse.com/security/cve/CVE-2026-23268","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23269","label":"www.suse.com/security/cve/CVE-2026-23269","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2025-21738","CVE-2025-40242","CVE-2025-71066","CVE-2026-23004","CVE-2026-23054","CVE-2026-23060","CVE-2026-23074","CVE-2026-23089","CVE-2026-23191","CVE-2026-23204","CVE-2026-23209","CVE-2026-23268","CVE-2026-23269"],"downstream":[],"duplicates":[],"related":["CVE-2025-21738","CVE-2025-40242","CVE-2025-71066","CVE-2026-23004","CVE-2026-23054","CVE-2026-23060","CVE-2026-23074","CVE-2026-23089","CVE-2026-23191","CVE-2026-23204","CVE-2026-23209","CVE-2026-23268","CVE-2026-23269"]},"timeline":[{"kind":"published","date":"2026-03-26T12:42:31.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-27T08:48:32.830Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T07:46:30.877Z","stale":false,"partial":false}}