{"schemaVersion":3,"id":"USN-5267-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 regression\n\nUSN-5267-1 fixed vulnerabilities in the Linux kernel. Unfortunately,\nthat update introduced a regression that caused the kernel to freeze\nwhen accessing CIFS shares in some situations.  This update fixes\nthe problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that the Bluetooth subsystem in the Linux kernel\n contained a use-after-free vulnerability. A local attacker could use this\n to cause a denial of service (system crash) or possibly execute arbitrary\n code. (CVE-2021-3640)\n\n Likang Luo discovered that a race condition existed in the Bluetooth\n subsystem of the Linux kernel, leading to a use-after-free vulnerability. A\n local attacker could use this to cause a denial of service (system crash)\n or possibly execute arbitrary code. (CVE-2021-3752)\n\n Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel\n did not properly perform bounds checking in some situations. A local\n attacker could use this to cause a denial of service (system crash) or\n possibly execute arbitrary code. (CVE-2021-42739)","dates":{"published":"2022-02-11T07:28:28.000Z","modified":"2026-04-22T10:20:59.187Z","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":"< 5.4.0-99.112","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-99.112","eol":null,"hubHref":null},{"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":"< 5.4.0-1065.68","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1065.68","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-aws-5.4","name":"linux-aws-5.4","label":"linux-aws-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1065.68~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1065.68~18.04.1","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":"< 5.4.0-1069.72","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1069.72","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-5.4","name":"linux-azure-5.4","label":"linux-azure-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1069.72~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1069.72~18.04.1","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":"< 5.4.0-1064.68","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1064.68","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gcp-5.4","name":"linux-gcp-5.4","label":"linux-gcp-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gcp-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1064.68~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1064.68~18.04.1","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":"< 5.4.0-1062.65","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1062.65","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gke-5.4","name":"linux-gke-5.4","label":"linux-gke-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gke-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1062.65~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1062.65~18.04.1","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":"< 5.4.0-1033.34","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1033.34","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-gkeop-5.4","name":"linux-gkeop-5.4","label":"linux-gkeop-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-gkeop-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1033.34~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1033.34~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe-5.4","name":"linux-hwe-5.4","label":"linux-hwe-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-99.112~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-99.112~18.04.1","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":"< 5.4.0-1014.15","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1014.15","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":"< 5.4.0-1055.57","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1055.57","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":"< 5.4.0-1063.67","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1063.67","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle-5.4","name":"linux-oracle-5.4","label":"linux-oracle-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1063.67~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1063.67~18.04.1","eol":null,"hubHref":null}],"affectedCount":16,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5267-2","label":"ubuntu.com/security/notices/USN-5267-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://launchpad.net/bugs/1959665","label":"launchpad.net/bugs/1959665","hostname":"launchpad.net","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-02-11T07:28:28.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:20:59.187Z","label":"Last modified","detail":"Vulnerability information 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