{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52928",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.368Z",
        "datePublished": "2026-06-24T07:14:21.367Z",
        "dateUpdated": "2026-07-04T11:50:47.159Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-04T11:50:47.159Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Reject SIOCATMARK on non-stream sockets\n\nSIOCATMARK reports whether the receive queue is at the urgent mark for\nMSG_OOB.\n\nIn AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets.\nSOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(),\nso they should not support SIOCATMARK either.\n\nReturn -EOPNOTSUPP for non-stream sockets before checking the receive\nqueue."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/unix/af_unix.c"
                    ],
                    "versions": [
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "ec123873fdc83e7244c8ed6d17b8f8ea6c416a67",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "f085971de6d6b8ef946a5e0bcd73ff24509a0f85",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "b741c9c6ef59f17c1f104ddf1217ef77f79ed29b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "645b1ed3259af38b7814242a420bc2081bdd1eb6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "c34c41446acf6c0d13b5b06c809be11e0f7f2729",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "3147ddf5a41c20c45c2eb69e00b62f10f822056a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "314001f0bf927015e459c9d387d62a231fe93af3",
                            "lessThan": "d119775f2bad827edc28071c061fdd4a91f889a5",
                            "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/unix/af_unix.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.211",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.177",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.144",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.88",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.30",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.7",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "5.15.211"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.1.177"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.6.144"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.12.88"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.18.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.0.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ec123873fdc83e7244c8ed6d17b8f8ea6c416a67"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f085971de6d6b8ef946a5e0bcd73ff24509a0f85"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b741c9c6ef59f17c1f104ddf1217ef77f79ed29b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/645b1ed3259af38b7814242a420bc2081bdd1eb6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c34c41446acf6c0d13b5b06c809be11e0f7f2729"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3147ddf5a41c20c45c2eb69e00b62f10f822056a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d119775f2bad827edc28071c061fdd4a91f889a5"
                }
            ],
            "title": "af_unix: Reject SIOCATMARK on non-stream sockets",
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                "engine": "bippy-1.2.0"
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    }
}