{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45930",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.086Z",
        "datePublished": "2026-05-27T12:17:48.689Z",
        "dateUpdated": "2026-06-19T11:58:46.478Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-19T11:58:46.478Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mctp: ensure our nlmsg responses are initialised\n\nSyed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from\nDEVCORE Research Team working with Trend Micro Zero Day Initiative\nreport that a RTM_GETNEIGH will return uninitalised data in the pad\nbytes of the ndmsg data.\n\nEnsure we're initialising the netlink data to zero, in the link, addr\nand neigh response messages."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mctp/device.c",
                        "net/mctp/neigh.c",
                        "net/mctp/route.c"
                    ],
                    "versions": [
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "b37da3ac099e145bcd3be82c745a8d335772e3af",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "c4f840437e7641764de15f2de951ac8335d641f1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "963537a26fd892f7e414a091f807b44aeee97a7d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "976612471a9e6ead6ceffc241e4d0a1aac90b36a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "54ed418de62a148a655262da682a050fa05f7924",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "6fb6a97c86abb8592158088afaea0eb464cf9de1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "583be982d93479ea3d85091b0fd0b01201ede87d",
                            "lessThan": "a6a9bc544b675d8b5180f2718ec985ad267b5cbf",
                            "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/mctp/device.c",
                        "net/mctp/neigh.c",
                        "net/mctp/route.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.35",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.4",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.15",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.6.143"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.12.93"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.18.35"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.19.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b37da3ac099e145bcd3be82c745a8d335772e3af"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c4f840437e7641764de15f2de951ac8335d641f1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/963537a26fd892f7e414a091f807b44aeee97a7d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/976612471a9e6ead6ceffc241e4d0a1aac90b36a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/54ed418de62a148a655262da682a050fa05f7924"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fb6a97c86abb8592158088afaea0eb464cf9de1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6a9bc544b675d8b5180f2718ec985ad267b5cbf"
                }
            ],
            "title": "net: mctp: ensure our nlmsg responses are initialised",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}