{"id":"USN-8656-1","summary":"linux-hwe-6.8 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  - InfiniBand drivers;\n  - Network drivers;\n  - Mellanox network drivers;\n  - File systems infrastructure;\n  - IPv4 networking;\n  - Network traffic control;\n  - TCP network protocol;\n  - B.A.T.M.A.N. meshing protocol;\n  - IPv6 networking;\n  - Multipath TCP;\n  - Netfilter;\n  - Open vSwitch;\n  - RxRPC session sockets;\n  - SCTP protocol;\n  - SMC sockets;\n(CVE-2026-43083, CVE-2026-43197, CVE-2026-43198, CVE-2026-43465,\nCVE-2026-46242, CVE-2026-46325, CVE-2026-46331, CVE-2026-52914,\nCVE-2026-52924, CVE-2026-52931, CVE-2026-53151, CVE-2026-53176,\nCVE-2026-53212, CVE-2026-53215, CVE-2026-53224, CVE-2026-53225,\nCVE-2026-53228, CVE-2026-53246, CVE-2026-53247, CVE-2026-53359,\nCVE-2026-64531)\n","modified":"2026-08-21T05:42:43.816529952Z","published":"2026-08-20T21:21:56Z","related":["UBUNTU-CVE-2026-43083","UBUNTU-CVE-2026-43197","UBUNTU-CVE-2026-43198","UBUNTU-CVE-2026-43465","UBUNTU-CVE-2026-46242","UBUNTU-CVE-2026-46325","UBUNTU-CVE-2026-46331","UBUNTU-CVE-2026-52914","UBUNTU-CVE-2026-52924","UBUNTU-CVE-2026-52931","UBUNTU-CVE-2026-53151","UBUNTU-CVE-2026-53176","UBUNTU-CVE-2026-53212","UBUNTU-CVE-2026-53215","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53225","UBUNTU-CVE-2026-53228","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-53359","UBUNTU-CVE-2026-64531"],"upstream":["CVE-2026-43083","CVE-2026-43197","CVE-2026-43198","CVE-2026-43465","CVE-2026-46242","CVE-2026-46325","CVE-2026-46331","CVE-2026-52914","CVE-2026-52924","CVE-2026-52931","CVE-2026-53151","CVE-2026-53176","CVE-2026-53212","CVE-2026-53215","CVE-2026-53224","CVE-2026-53225","CVE-2026-53228","CVE-2026-53246","CVE-2026-53247","CVE-2026-53359","CVE-2026-64531","UBUNTU-CVE-2026-43083","UBUNTU-CVE-2026-43197","UBUNTU-CVE-2026-43198","UBUNTU-CVE-2026-43465","UBUNTU-CVE-2026-46242","UBUNTU-CVE-2026-46325","UBUNTU-CVE-2026-46331","UBUNTU-CVE-2026-52914","UBUNTU-CVE-2026-52924","UBUNTU-CVE-2026-52931","UBUNTU-CVE-2026-53151","UBUNTU-CVE-2026-53176","UBUNTU-CVE-2026-53212","UBUNTU-CVE-2026-53215","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53225","UBUNTU-CVE-2026-53228","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-53359","UBUNTU-CVE-2026-64531"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8656-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43083"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43197"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43198"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43465"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-46242"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-46325"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-46331"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-52914"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-52924"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-52931"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53151"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53176"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53212"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53215"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53224"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53225"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53228"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53246"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53247"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53359"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-64531"}],"affected":[{"package":{"name":"linux-hwe-6.8","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-hwe-6.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-138.138~22.04.1"}]}],"versions":["6.8.0-38.38~22.04.1","6.8.0-39.39~22.04.1","6.8.0-40.40~22.04.3","6.8.0-45.45~22.04.1","6.8.0-47.47~22.04.1","6.8.0-48.48~22.04.1","6.8.0-49.49~22.04.1","6.8.0-50.51~22.04.1","6.8.0-51.52~22.04.1","6.8.0-52.53~22.04.1","6.8.0-57.59~22.04.1","6.8.0-58.60~22.04.1","6.8.0-59.61~22.04.1","6.8.0-60.63~22.04.1","6.8.0-64.67~22.04.1","6.8.0-65.68~22.04.1","6.8.0-78.78~22.04.1","6.8.0-79.79~22.04.1","6.8.0-83.83~22.04.1","6.8.0-84.84~22.04.1","6.8.0-85.85~22.04.1","6.8.0-86.87~22.04.1","6.8.0-87.88~22.04.1","6.8.0-88.89~22.04.2","6.8.0-90.91~22.04.1","6.8.0-94.96~22.04.1","6.8.0-100.100~22.04.1","6.8.0-101.101~22.04.1","6.8.0-106.106~22.04.1","6.8.0-107.107~22.04.1","6.8.0-110.110~22.04.1","6.8.0-111.111~22.04.1","6.8.0-117.117~22.04.1","6.8.0-124.124~22.04.1","6.8.0-134.134~22.04.1","6.8.0-136.136~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-6.8.0-138-generic","binary_version":"6.8.0-138.138~22.04.1"},{"binary_name":"linux-buildinfo-6.8.0-138-generic-64k","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-cloud-tools-6.8.0-138-generic"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-headers-6.8.0-138-generic"},{"binary_name":"linux-headers-6.8.0-138-generic-64k","binary_version":"6.8.0-138.138~22.04.1"},{"binary_name":"linux-hwe-6.8-cloud-tools-6.8.0-138","binary_version":"6.8.0-138.138~22.04.1"},{"binary_name":"linux-hwe-6.8-headers-6.8.0-138","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-hwe-6.8-tools-6.8.0-138"},{"binary_name":"linux-image-6.8.0-138-generic","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-image-unsigned-6.8.0-138-generic"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-image-unsigned-6.8.0-138-generic-64k"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-modules-6.8.0-138-generic"},{"binary_name":"linux-modules-6.8.0-138-generic-64k","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-modules-extra-6.8.0-138-generic"},{"binary_name":"linux-modules-ipu6-6.8.0-138-generic","binary_version":"6.8.0-138.138~22.04.1"},{"binary_name":"linux-modules-iwlwifi-6.8.0-138-generic","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-modules-usbio-6.8.0-138-generic"},{"binary_name":"linux-tools-6.8.0-138-generic","binary_version":"6.8.0-138.138~22.04.1"},{"binary_version":"6.8.0-138.138~22.04.1","binary_name":"linux-tools-6.8.0-138-generic-64k"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2026-43083","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-43197","severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"score":"negligible","type":"Ubuntu"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"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"}],"id":"CVE-2026-43198"},{"id":"CVE-2026-43465","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"severity":[{"score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2026-46242"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2026-46325"},{"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2026-46331"},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/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"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2026-52914"},{"id":"CVE-2026-52924","severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"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"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/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":"medium"}],"id":"CVE-2026-52931"},{"id":"CVE-2026-53151","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2026-53176"},{"id":"CVE-2026-53212","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2026-53215","severity":[{"score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"critical","type":"Ubuntu"}]},{"id":"CVE-2026-53224","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-53225","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"negligible"}]},{"id":"CVE-2026-53228","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-53246"},{"id":"CVE-2026-53247","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2026-53359","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-64531","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"score":"high","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8656-1.json"}}],"schema_version":"1.9.0"}