{"id":"USN-9028-1","summary":"linux-azure-fde vulnerabilities","details":"Several 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  - x86 architecture;\n  - Hardware monitoring drivers;\n  - OCFS2 file system;\n(CVE-2025-21656, CVE-2026-63940, CVE-2026-74350)\n","modified":"2026-11-11T09:44:13.913595935Z","published":"2026-11-10T08:44:38Z","related":["UBUNTU-CVE-2025-21656","UBUNTU-CVE-2026-63940","UBUNTU-CVE-2026-74350"],"upstream":["CVE-2025-21656","CVE-2026-63940","CVE-2026-74350","UBUNTU-CVE-2025-21656","UBUNTU-CVE-2026-63940","UBUNTU-CVE-2026-74350"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-9028-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21656"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63940"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74350"}],"affected":[{"package":{"name":"linux-azure-fde","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-fde?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1125.134"}]}],"versions":["5.15.0-1019.24.1","5.15.0-1024.30.1","5.15.0-1029.36.1","5.15.0-1030.37.1","5.15.0-1031.38.1","5.15.0-1033.40.1","5.15.0-1034.41.1","5.15.0-1035.42.1","5.15.0-1036.43.1","5.15.0-1037.44.1","5.15.0-1038.45.1","5.15.0-1039.46.1","5.15.0-1041.48.1","5.15.0-1042.49.1","5.15.0-1044.51.1","5.15.0-1045.52.1","5.15.0-1046.53.1","5.15.0-1047.54.1","5.15.0-1049.56.1","5.15.0-1050.57.1","5.15.0-1051.59.1","5.15.0-1052.60.1","5.15.0-1053.61.1","5.15.0-1054.62.1","5.15.0-1056.64.1","5.15.0-1057.65.1","5.15.0-1058.66.1","5.15.0-1059.67.1","5.15.0-1060.69.1","5.15.0-1061.70.1","5.15.0-1063.72.1","5.15.0-1064.73.1","5.15.0-1065.74.1","5.15.0-1067.76.1","5.15.0-1068.77.1","5.15.0-1070.79.1","5.15.0-1071.80.1","5.15.0-1072.81.1","5.15.0-1073.82.1","5.15.0-1076.85.1","5.15.0-1078.87.1","5.15.0-1081.90.1","5.15.0-1082.91.1","5.15.0-1084.93.1","5.15.0-1086.95.1","5.15.0-1087.96.1","5.15.0-1088.97.1","5.15.0-1089.98.1","5.15.0-1090.99.1","5.15.0-1091.100.1","5.15.0-1092.101.1","5.15.0-1094.103.1","5.15.0-1095.104.1","5.15.0-1096.105.1","5.15.0-1097.106.1","5.15.0-1098.107.1","5.15.0-1102.111.1","5.15.0-1109.118.1","5.15.0-1110.119.1","5.15.0-1111.120.1","5.15.0-1114.123","5.15.0-1116.125","5.15.0-1117.126","5.15.0-1118.127","5.15.0-1119.128","5.15.0-1120.129","5.15.0-1121.130","5.15.0-1122.131","5.15.0-1124.133"],"ecosystem_specific":{"binaries":[{"binary_version":"5.15.0-1125.134","binary_name":"linux-azure-fde-cloud-tools-5.15.0-1125"},{"binary_name":"linux-azure-fde-headers-5.15.0-1125","binary_version":"5.15.0-1125.134"},{"binary_version":"5.15.0-1125.134","binary_name":"linux-azure-fde-tools-5.15.0-1125"},{"binary_name":"linux-buildinfo-5.15.0-1125-azure-fde","binary_version":"5.15.0-1125.134"},{"binary_name":"linux-cloud-tools-5.15.0-1125-azure-fde","binary_version":"5.15.0-1125.134"},{"binary_version":"5.15.0-1125.134","binary_name":"linux-headers-5.15.0-1125-azure-fde"},{"binary_version":"5.15.0-1125.134","binary_name":"linux-image-unsigned-5.15.0-1125-azure-fde"},{"binary_version":"5.15.0-1125.134","binary_name":"linux-modules-5.15.0-1125-azure-fde"},{"binary_name":"linux-modules-extra-5.15.0-1125-azure-fde","binary_version":"5.15.0-1125.134"},{"binary_version":"5.15.0-1125.134","binary_name":"linux-modules-involflt-5.15.0-1125-azure-fde"},{"binary_name":"linux-tools-5.15.0-1125-azure-fde","binary_version":"5.15.0-1125.134"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9028-1.json","cves_map":{"cves":[{"id":"CVE-2025-21656","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"score":"low","type":"Ubuntu"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"critical"}],"id":"CVE-2026-63940"},{"id":"CVE-2026-74350","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:22.04:LTS"}}}],"schema_version":"1.9.2"}