{"id":"CVE-2025-40051","revision":"7b5615bd12a44d14a0b02e195b92f415","records":[{"revision":"7b5615bd12a44d14a0b02e195b92f415","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40051","aliases":[],"title":"vhost: vringh: Modify the return value check","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: vringh: Modify the return value check\n\nThe return value of copy_from_iter and copy_to_iter can't be negative,\ncheck whether the copied lengths are equal.","state":0,"publishedAt":"2025-10-28T11:48:27.279+00:00","modifiedAt":"2026-10-15T22:02:36.974+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vhost/vringh.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"309bba39c945ac8ab8083ac05cd6cfe5822968e0\",\n                            \"lessThan\": \"db042925a5ab7a550b710addeadbf6f72e3a8a4b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"309bba39c945ac8ab8083ac05cd6cfe5822968e0\",\n                            \"lessThan\": \"78dc7362662fedaa1928fb8e4f27401c8322905d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"309bba39c945ac8ab8083ac05cd6cfe5822968e0\",\n                            \"lessThan\": \"baa37b1c7e29546f79c39bef0d18c4edc9f39bb1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"309bba39c945ac8ab8083ac05cd6cfe5822968e0\",\n                            \"lessThan\": \"cfa0654402c06d086201a9ff167eb95da5844fc3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"309bba39c945ac8ab8083ac05cd6cfe5822968e0\",\n                            \"lessThan\": \"82a8d0fda55b35361ee7f35b54fa2b66d7847d2b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vhost/vringh.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.156\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.112\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.53\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.3\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/db042925a5ab7a550b710addeadbf6f72e3a8a4b","https://git.kernel.org/stable/c/78dc7362662fedaa1928fb8e4f27401c8322905d","https://git.kernel.org/stable/c/baa37b1c7e29546f79c39bef0d18c4edc9f39bb1","https://git.kernel.org/stable/c/cfa0654402c06d086201a9ff167eb95da5844fc3","https://git.kernel.org/stable/c/82a8d0fda55b35361ee7f35b54fa2b66d7847d2b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40051","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40051","identifiers":["CVE-2025-40051"]},"retained":false,"historicalAffected":[]}],"coverage":[]}