{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49766", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:17:33.804Z", "datePublished": "2025-05-01T14:09:05.569Z", "dateUpdated": "2025-05-04T08:44:55.198Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:44:55.198Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: Bounds-check struct nlmsgerr creation\n\nIn preparation for FORTIFY_SOURCE doing bounds-check on memcpy(),\nswitch from __nlmsg_put to nlmsg_put(), and explain the bounds check\nfor dealing with the memcpy() across a composite flexible array struct.\nAvoids this future run-time warning:\n\n memcpy: detected field-spanning write (size 32) of single field \"&errmsg->msg\" at net/netlink/af_netlink.c:2447 (size 16)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/ipset/ip_set_core.c", "net/netlink/af_netlink.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "aff4eb16f589c3af322a2582044bca365381fcd6", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "710d21fdff9a98d621cd4e64167f3ef8af4e2fd1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/ipset/ip_set_core.c", "net/netlink/af_netlink.c"], "versions": [{"version": "6.0.10", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/aff4eb16f589c3af322a2582044bca365381fcd6"}, {"url": "https://git.kernel.org/stable/c/710d21fdff9a98d621cd4e64167f3ef8af4e2fd1"}], "title": "netlink: Bounds-check struct nlmsgerr creation", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E6460EC4-9676-44DC-BD3D-51B124E4D196", "versionEndExcluding": "6.0.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: Bounds-check struct nlmsgerr creation\n\nIn preparation for FORTIFY_SOURCE doing bounds-check on memcpy(),\nswitch from __nlmsg_put to nlmsg_put(), and explain the bounds check\nfor dealing with the memcpy() across a composite flexible array struct.\nAvoids this future run-time warning:\n\n memcpy: detected field-spanning write (size 32) of single field \"&errmsg->msg\" at net/netlink/af_netlink.c:2447 (size 16)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netlink: Creaci\u00f3n de la estructura nlmsgerr con comprobaci\u00f3n de los l\u00edmites. En preparaci\u00f3n para que FORTIFY_SOURCE realice la comprobaci\u00f3n de los l\u00edmites en memcpy(), cambie de __nlmsg_put a nlmsg_put() y explique la comprobaci\u00f3n de los l\u00edmites para procesar memcpy() en una estructura de matriz flexible compuesta. Esto evita esta futura advertencia en tiempo de ejecuci\u00f3n: memcpy: se detect\u00f3 una escritura que abarca campos (tama\u00f1o 32) en un solo campo \"&errmsg->msg\" en net/netlink/af_netlink.c:2447 (tama\u00f1o 16)."}], "id": "CVE-2022-49766", "lastModified": "2025-11-06T21:57:43.357", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2025-05-01T15:15:59.380", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/710d21fdff9a98d621cd4e64167f3ef8af4e2fd1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aff4eb16f589c3af322a2582044bca365381fcd6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netlink: Bounds-check struct nlmsgerr creation", "id": "2363478", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363478"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nnetlink: Bounds-check struct nlmsgerr creation\nIn preparation for FORTIFY_SOURCE doing bounds-check on memcpy(),\nswitch from __nlmsg_put to nlmsg_put(), and explain the bounds check\nfor dealing with the memcpy() across a composite flexible array struct.\nAvoids this future run-time warning:\nmemcpy: detected field-spanning write (size 32) of single field \"&errmsg->msg\" at net/netlink/af_netlink.c:2447 (size 16)"], "name": "CVE-2022-49766", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49766\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49766\nhttps://lore.kernel.org/linux-cve-announce/2025050114-CVE-2022-49766-7b16@gregkh/T"], "threat_severity": "Moderate"}