{"id":"CVE-2026-43248","summary":"vhost: move vdpa group bound check to vhost_vdpa","details":"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 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.","modified":"2026-05-28T03:55:16.834839447Z","published":"2026-05-06T11:28:39.578Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43248.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43248.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43248"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"bda324fd037a6b0d44da5699574ce741ca161bc4"},{"fixed":"ddb57354634b6ba851b79da45f1de42c646f27d0"},{"fixed":"7441d35d14d9a3d66d925d90cb73c75394e6d454"},{"fixed":"406db68f9cb976a8ddfafd631197264f2307e9c9"},{"fixed":"cd025c1e876b4e262e71398236a1550486a73ede"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43248.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.19.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43248.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}