{"id":"CVE-2026-43248","title":"vhost: move vdpa group bound check to vhost_vdpa","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: move vdpa group bound check to vhost_vdpa\n\nRemove duplication by consolidating these here.  This reduces the\nposibility of a parent driver missing them.\n\nWhile w…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < ddb57354634b6ba851b79da45f1de42c646f27d0","Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < 7441d35d14d9a3d66d925d90cb73c75394e6d454","Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < 406db68f9cb976a8ddfafd631197264f2307e9c9","Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < cd025c1e876b4e262e71398236a1550486a73ede","Linux 5.19"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:16:04.394477Z"},"published":"2026-05-06","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:37.752Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43248","references":[{"url":"https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0"},{"url":"https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454"},{"url":"https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9"},{"url":"https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02227,"ingestedAt":"2026-10-16T17:24:46.689Z","slug":"CVE-2026-43248","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nvhost: move vdpa group bound check to vhost_vdpa\n\nRemove duplication by consolidating these here.  This reduces the\nposibility of a parent driver missing them.\n\nWhile we're at it, fix a bug in vdpa_sim where a valid ASID can be\nassigned to a group equal to ngroups, causing an out of bound write.\n\n## Affected\n\n- `Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < ddb57354634b6ba851b79da45f1de42c646f27d0`\n- `Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < 7441d35d14d9a3d66d925d90cb73c75394e6d454`\n- `Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < 406db68f9cb976a8ddfafd631197264f2307e9c9`\n- `Linux >= bda324fd037a6b0d44da5699574ce741ca161bc4 < cd025c1e876b4e262e71398236a1550486a73ede`\n- `Linux 5.19`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}