{"id":"USN-8643-3","summary":"linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency 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  - Network drivers;\n  - Open vSwitch;\n  - SCTP protocol;\n(CVE-2026-53224, CVE-2026-53246, CVE-2026-53247, CVE-2026-64531)\n","modified":"2026-08-22T06:15:07.813270876Z","published":"2026-08-21T19:54:33Z","related":["UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-64531"],"upstream":["CVE-2026-53224","CVE-2026-53246","CVE-2026-53247","CVE-2026-64531","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-64531"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8643-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53224"},{"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-2026-64531"}],"affected":[{"package":{"name":"linux-nvidia-6.8","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-nvidia-6.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1061.64~22.04.1"}]}],"versions":["6.8.0-1008.8~22.04.1","6.8.0-1009.9~22.04.1","6.8.0-1010.10~22.04.1","6.8.0-1011.11~22.04.1","6.8.0-1012.12~22.04.1","6.8.0-1013.14~22.04.1","6.8.0-1014.15~22.04.1","6.8.0-1015.16~22.04.1","6.8.0-1017.19~22.04.1","6.8.0-1018.20~22.04.1","6.8.0-1019.21~22.04.1","6.8.0-1020.22~22.04.1","6.8.0-1021.23~22.04.1","6.8.0-1022.25~22.04.2","6.8.0-1023.26~22.04.1","6.8.0-1024.27~22.04.1","6.8.0-1025.28~22.04.1","6.8.0-1026.29~22.04.1","6.8.0-1027.30~22.04.1","6.8.0-1028.31~22.04.1","6.8.0-1029.32~22.04.1","6.8.0-1030.33~22.04.1","6.8.0-1031.34~22.04.1","6.8.0-1032.35~22.04.1","6.8.0-1035.38~22.04.1","6.8.0-1036.39~22.04.1","6.8.0-1038.41~22.04.1","6.8.0-1039.42~22.04.1","6.8.0-1040.43~22.04.1","6.8.0-1041.44~22.04.2","6.8.0-1042.45~22.04.1","6.8.0-1043.46~22.04.1","6.8.0-1044.47~22.04.1","6.8.0-1045.48~22.04.1","6.8.0-1046.49~22.04.1","6.8.0-1047.50~22.04.1","6.8.0-1049.52~22.04.1","6.8.0-1050.53~22.04.1","6.8.0-1051.54~22.04.1","6.8.0-1052.55~22.04.1","6.8.0-1054.57~22.04.1","6.8.0-1055.58~22.04.1","6.8.0-1058.61~22.04.1","6.8.0-1059.62~22.04.1","6.8.0-1060.63~22.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"linux-buildinfo-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_name":"linux-buildinfo-6.8.0-1061-nvidia-64k","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-headers-6.8.0-1061-nvidia"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-headers-6.8.0-1061-nvidia-64k"},{"binary_name":"linux-image-unsigned-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-image-unsigned-6.8.0-1061-nvidia-64k"},{"binary_name":"linux-modules-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-modules-6.8.0-1061-nvidia-64k"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-modules-extra-6.8.0-1061-nvidia"},{"binary_name":"linux-modules-nvidia-fs-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-modules-nvidia-fs-6.8.0-1061-nvidia-64k"},{"binary_version":"6.8.0-1061.64~22.04.1","binary_name":"linux-nvidia-6.8-headers-6.8.0-1061"},{"binary_name":"linux-nvidia-6.8-tools-6.8.0-1061","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_name":"linux-tools-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64~22.04.1"},{"binary_name":"linux-tools-6.8.0-1061-nvidia-64k","binary_version":"6.8.0-1061.64~22.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-53224","severity":[{"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_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":"high","type":"Ubuntu"}]},{"id":"CVE-2026-53246","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"},{"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-2026-53247","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"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"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8643-3.json"}},{"package":{"name":"linux-nvidia","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/linux-nvidia?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1061.64"}]}],"versions":["6.8.0-1007.7","6.8.0-1008.8","6.8.0-1009.9","6.8.0-1010.10","6.8.0-1011.11","6.8.0-1012.12","6.8.0-1013.14","6.8.0-1014.15","6.8.0-1015.16","6.8.0-1017.19","6.8.0-1018.20","6.8.0-1019.21","6.8.0-1020.22","6.8.0-1021.23","6.8.0-1022.25","6.8.0-1023.26","6.8.0-1024.27","6.8.0-1025.28","6.8.0-1026.29","6.8.0-1027.30","6.8.0-1028.31","6.8.0-1029.32","6.8.0-1030.33","6.8.0-1031.34","6.8.0-1032.35","6.8.0-1035.38","6.8.0-1036.39","6.8.0-1038.41","6.8.0-1039.42","6.8.0-1040.43","6.8.0-1041.44","6.8.0-1042.45","6.8.0-1043.46","6.8.0-1044.47","6.8.0-1045.48","6.8.0-1046.49","6.8.0-1047.50","6.8.0-1049.52","6.8.0-1050.53","6.8.0-1051.54","6.8.0-1052.55","6.8.0-1054.57","6.8.0-1055.58","6.8.0-1058.61","6.8.0-1059.62","6.8.0-1060.63"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64"},{"binary_name":"linux-buildinfo-6.8.0-1061-nvidia-64k","binary_version":"6.8.0-1061.64"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-headers-6.8.0-1061-nvidia"},{"binary_name":"linux-headers-6.8.0-1061-nvidia-64k","binary_version":"6.8.0-1061.64"},{"binary_name":"linux-image-unsigned-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-image-unsigned-6.8.0-1061-nvidia-64k"},{"binary_name":"linux-modules-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-modules-6.8.0-1061-nvidia-64k"},{"binary_name":"linux-modules-nvidia-fs-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64"},{"binary_name":"linux-modules-nvidia-fs-6.8.0-1061-nvidia-64k","binary_version":"6.8.0-1061.64"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-nvidia-headers-6.8.0-1061"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-nvidia-tools-6.8.0-1061"},{"binary_name":"linux-tools-6.8.0-1061-nvidia","binary_version":"6.8.0-1061.64"},{"binary_version":"6.8.0-1061.64","binary_name":"linux-tools-6.8.0-1061-nvidia-64k"}],"availability":"No 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