{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40056", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.158Z", "datePublished": "2025-10-28T11:48:30.249Z", "dateUpdated": "2025-12-01T06:17:04.464Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-01T06:17:04.464Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: vringh: Fix copy_to_iter return value check\n\nThe return value of copy_to_iter can't be negative, check whether the\ncopied length is equal to the requested length instead of checking for\nnegative values."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/vhost/vringh.c"], "versions": [{"version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0", "lessThan": "bd71e7e0a612740e4de5524880c7cd40293af5f7", "status": "affected", "versionType": "git"}, {"version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0", "lessThan": "781226e11d5bdea0d69c7b5aa3cda874093c73b8", "status": "affected", "versionType": "git"}, {"version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0", "lessThan": "b3a950d236e98440c07405ba597b11bce56a8050", "status": "affected", "versionType": "git"}, {"version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0", "lessThan": "68aac2b335d474b938d154b9c95cbc58838cb2ce", "status": "affected", "versionType": "git"}, {"version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0", "lessThan": "439263376c2c4e126cac0d07e4987568de4eaba5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/vhost/vringh.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.156", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.112", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.53", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.3", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bd71e7e0a612740e4de5524880c7cd40293af5f7"}, {"url": "https://git.kernel.org/stable/c/781226e11d5bdea0d69c7b5aa3cda874093c73b8"}, {"url": "https://git.kernel.org/stable/c/b3a950d236e98440c07405ba597b11bce56a8050"}, {"url": "https://git.kernel.org/stable/c/68aac2b335d474b938d154b9c95cbc58838cb2ce"}, {"url": "https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5"}], "title": "vhost: vringh: Fix copy_to_iter return value check", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: vringh: Fix copy_to_iter return value check\n\nThe return value of copy_to_iter can't be negative, check whether the\ncopied length is equal to the requested length instead of checking for\nnegative values."}], "id": "CVE-2025-40056", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-28T12:15:39.907", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68aac2b335d474b938d154b9c95cbc58838cb2ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/781226e11d5bdea0d69c7b5aa3cda874093c73b8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3a950d236e98440c07405ba597b11bce56a8050"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd71e7e0a612740e4de5524880c7cd40293af5f7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: vhost: vringh: Fix copy_to_iter return value check", "id": "2406773", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2406773"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-40056", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40056\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40056\nhttps://lore.kernel.org/linux-cve-announce/2025102815-CVE-2025-40056-0a6b@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-29T10:58:11.337361+00:00", "updated": "2025-10-29T10:58:11.337387+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}