{"schemaVersion":3,"id":"USN-8818-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux-aws, linux-aws-fips, linux-azure, linux-azure-fde, linux-azure-fips, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iot-realtime, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-realtime, linux-xilinx-zynqmp 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 A local\nattacker could possibly use this to write to memory after permission to do\nso had been revoked, bypassing memory protections or escalating privileges.\n(CVE-2025-10263)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could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  - exFAT file system;\n  - Network file system (NFS) client;\n  - Network file system (NFS) server daemon;\n  - B.A.T.M.A.N. meshing protocol;\n  - IPv4 networking;\n  - IPv6 networking;\n  - Netfilter;\n  - RDS protocol;\n(CVE-2026-53186, CVE-2026-53216, CVE-2026-53221, CVE-2026-53354,\nCVE-2026-53355, CVE-2026-53398, CVE-2026-63800, CVE-2026-63808,\nCVE-2026-63887, CVE-2026-63888, CVE-2026-63912, CVE-2026-63922,\nCVE-2026-63924, CVE-2026-63984, CVE-2026-63992, CVE-2026-63993,\nCVE-2026-63994, CVE-2026-64007, CVE-2026-64091)","dates":{"published":"2026-09-24T15:02:22.000Z","modified":"2026-10-08T12:48:54.652Z","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-aws","name":"linux-aws","label":"linux-aws","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws","purlType":"deb","versions":[{"text":"< 5.15.0-1116.123","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1116.123","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-aws-fips","name":"linux-aws-fips","label":"linux-aws-fips","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws-fips","purlType":"deb","versions":[{"text":"< 5.15.0-1116.123+fips1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1116.123+fips1","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":"< 5.15.0-1122.131","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1122.131","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":"< 5.15.0-1121.130","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1121.130","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":"< 5.15.0-1122.131+fips1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1122.131+fips1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gcp","name":"linux-gcp","label":"linux-gcp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gcp","purlType":"deb","versions":[{"text":"< 5.15.0-1117.127","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1117.127","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":"< 5.15.0-1116.126+fips1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1116.126+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":"< 5.15.0-1112.118","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1112.118","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":"< 5.15.0-1099.107","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1099.107","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe-5.15","name":"linux-hwe-5.15","label":"linux-hwe-5.15","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe-5.15","purlType":"deb","versions":[{"text":"< 5.15.0-194.204~20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-194.204~20.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-ibm","name":"linux-ibm","label":"linux-ibm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-ibm","purlType":"deb","versions":[{"text":"< 5.15.0-1110.114","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1110.114","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-intel-iot-realtime","name":"linux-intel-iot-realtime","label":"linux-intel-iot-realtime","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-intel-iot-realtime","purlType":"deb","versions":[{"text":"< 5.15.0-1108.110","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1108.110","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-intel-iotg","name":"linux-intel-iotg","label":"linux-intel-iotg","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-intel-iotg","purlType":"deb","versions":[{"text":"< 5.15.0-1111.117","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1111.117","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-kvm","name":"linux-kvm","label":"linux-kvm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-kvm","purlType":"deb","versions":[{"text":"< 5.15.0-1108.113","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1108.113","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-lowlatency","name":"linux-lowlatency","label":"linux-lowlatency","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-lowlatency","purlType":"deb","versions":[{"text":"< 5.15.0-194.204","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-194.204","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-lowlatency-hwe-5.15","name":"linux-lowlatency-hwe-5.15","label":"linux-lowlatency-hwe-5.15","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-lowlatency-hwe-5.15","purlType":"deb","versions":[{"text":"< 5.15.0-194.204~20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-194.204~20.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle","name":"linux-oracle","label":"linux-oracle","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle","purlType":"deb","versions":[{"text":"< 5.15.0-1113.119","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1113.119","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-realtime","name":"linux-realtime","label":"linux-realtime","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-realtime","purlType":"deb","versions":[{"text":"< 5.15.0-1115.124","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1115.124","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-xilinx-zynqmp","name":"linux-xilinx-zynqmp","label":"linux-xilinx-zynqmp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-xilinx-zynqmp","purlType":"deb","versions":[{"text":"< 5.15.0-1079.83","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.0-1079.83","eol":null,"hubHref":null}],"affectedCount":19,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8818-1","label":"ubuntu.com/security/notices/USN-8818-1","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-2026-53186","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-2026-53398","label":"ubuntu.com/security/CVE-2026-53398","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63800","label":"ubuntu.com/security/CVE-2026-63800","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-63808","label":"ubuntu.com/security/CVE-2026-63808","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-2026-64007","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-2026-53186","CVE-2026-53216","CVE-2026-53221","CVE-2026-53354","CVE-2026-53355","CVE-2026-53398","CVE-2026-63800","CVE-2026-63808","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-2026-64007","CVE-2026-64091"],"downstream":[],"duplicates":[],"related":["CVE-2025-10263","CVE-2026-53186","CVE-2026-53216","CVE-2026-53221","CVE-2026-53354","CVE-2026-53355","CVE-2026-53398","CVE-2026-63800","CVE-2026-63808","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-2026-64007","CVE-2026-64091"]},"timeline":[{"kind":"published","date":"2026-09-24T15:02:22.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-08T12:48:54.652Z","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":"2026-10-20T06:55:41.565Z","stale":false,"partial":false}}