{"schemaVersion":3,"id":"USN-8817-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-azure, linux-azure-6.8, linux-azure-fde, linux-azure-fde-6.8, linux-azure-fips, linux-fips, linux-gcp, linux-gcp-6.8, linux-gcp-fips, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8, linux-raspi, linux-raspi-realtime, linux-realtime, linux-realtime-6.8 vulnerabilities\n\nIt was discovered that some Arm processors could complete a broadcast\ntranslation lookaside buffer (TLB) invalidation before memory writes made\nthrough the invalidated translation were globally observed. A local\nattacker could possibly use this to write to memory after permission to do\nso had been revoked, bypassing memory protections or escalating privileges.\n(CVE-2025-10263)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - ARM64 architecture;\n  - InfiniBand drivers;\n  - Network drivers;\n  - TCM subsystem;\n  - B.A.T.M.A.N. meshing protocol;\n  - HSR network protocol;\n  - IPv4 networking;\n  - IPv6 networking;\n  - Netfilter;\n  - RDS protocol;\n(CVE-2026-53131, CVE-2026-53186, CVE-2026-53216, CVE-2026-53221,\nCVE-2026-53354, CVE-2026-53355, CVE-2026-63886, CVE-2026-63887,\nCVE-2026-63888, CVE-2026-63912, CVE-2026-63922, CVE-2026-63924,\nCVE-2026-63984, CVE-2026-63992, CVE-2026-63993, CVE-2026-63994,\nCVE-2026-64000, CVE-2026-64007, CVE-2026-64091)","dates":{"published":"2026-09-24T15:01:17.000Z","modified":"2026-10-08T12:49:26.543Z","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":"ubuntu","product":"linux","name":"linux","label":"linux","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux","purlType":"deb","versions":[{"text":"< 6.8.0-142.142","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-142.142","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure","name":"linux-azure","label":"linux-azure","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure","purlType":"deb","versions":[{"text":"< 6.8.0-1068.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1068.76","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-6.8","name":"linux-azure-6.8","label":"linux-azure-6.8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-6.8","purlType":"deb","versions":[{"text":"< 6.8.0-1068.76~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1068.76~22.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-fde","name":"linux-azure-fde","label":"linux-azure-fde","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-fde","purlType":"deb","versions":[{"text":"< 6.8.0-1066.73","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1066.73","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-fde-6.8","name":"linux-azure-fde-6.8","label":"linux-azure-fde-6.8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-fde-6.8","purlType":"deb","versions":[{"text":"< 6.8.0-1066.73~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1066.73~22.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-fips","name":"linux-azure-fips","label":"linux-azure-fips","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-fips","purlType":"deb","versions":[{"text":"< 6.8.0-1068.76+fips1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 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6.8.0-1069.77~22.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gcp-fips","name":"linux-gcp-fips","label":"linux-gcp-fips","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gcp-fips","purlType":"deb","versions":[{"text":"< 6.8.0-1068.76+fips1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1068.76+fips1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gke","name":"linux-gke","label":"linux-gke","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gke","purlType":"deb","versions":[{"text":"< 6.8.0-1064.72","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.0-1064.72","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gkeop","name":"linux-gkeop","label":"linux-gkeop","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gkeop","purlType":"deb","versions":[{"text":"< 6.8.0-1050.54","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 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6.8.1-1060.61","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-realtime-6.8","name":"linux-realtime-6.8","label":"linux-realtime-6.8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-realtime-6.8","purlType":"deb","versions":[{"text":"< 6.8.1-1060.61~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.8.1-1060.61~22.04.1","eol":null,"hubHref":null}],"affectedCount":21,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8817-1","label":"ubuntu.com/security/notices/USN-8817-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-10263","label":"ubuntu.com/security/CVE-2025-10263","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53131","label":"ubuntu.com/security/CVE-2026-53131","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53186","label":"ubuntu.com/security/CVE-2026-53186","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53216","label":"ubuntu.com/security/CVE-2026-53216","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53221","label":"ubuntu.com/security/CVE-2026-53221","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53354","label":"ubuntu.com/security/CVE-2026-53354","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53355","label":"ubuntu.com/security/CVE-2026-53355","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63886","label":"ubuntu.com/security/CVE-2026-63886","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63887","label":"ubuntu.com/security/CVE-2026-63887","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63888","label":"ubuntu.com/security/CVE-2026-63888","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63912","label":"ubuntu.com/security/CVE-2026-63912","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63922","label":"ubuntu.com/security/CVE-2026-63922","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63924","label":"ubuntu.com/security/CVE-2026-63924","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63984","label":"ubuntu.com/security/CVE-2026-63984","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63992","label":"ubuntu.com/security/CVE-2026-63992","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63993","label":"ubuntu.com/security/CVE-2026-63993","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63994","label":"ubuntu.com/security/CVE-2026-63994","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-64000","label":"ubuntu.com/security/CVE-2026-64000","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-64007","label":"ubuntu.com/security/CVE-2026-64007","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-64091","label":"ubuntu.com/security/CVE-2026-64091","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2025-10263","CVE-2026-53131","CVE-2026-53186","CVE-2026-53216","CVE-2026-53221","CVE-2026-53354","CVE-2026-53355","CVE-2026-63886","CVE-2026-63887","CVE-2026-63888","CVE-2026-63912","CVE-2026-63922","CVE-2026-63924","CVE-2026-63984","CVE-2026-63992","CVE-2026-63993","CVE-2026-63994","CVE-2026-64000","CVE-2026-64007","CVE-2026-64091"],"downstream":[],"duplicates":[],"related":["CVE-2025-10263","CVE-2026-53131","CVE-2026-53186","CVE-2026-53216","CVE-2026-53221","CVE-2026-53354","CVE-2026-53355","CVE-2026-63886","CVE-2026-63887","CVE-2026-63888","CVE-2026-63912","CVE-2026-63922","CVE-2026-63924","CVE-2026-63984","CVE-2026-63992","CVE-2026-63993","CVE-2026-63994","CVE-2026-64000","CVE-2026-64007","CVE-2026-64091"]},"timeline":[{"kind":"published","date":"2026-09-24T15:01:17.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-08T12:49:26.543Z","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":"2026-10-20T06:26:35.612Z","stale":false,"partial":false}}