{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74710",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.928Z",
        "datePublished": "2026-08-22T15:33:07.172Z",
        "dateUpdated": "2026-08-22T15:33:07.172Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:33:07.172Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: require at least 16 bytes of TX metadata\n\nAF_XDP accepts a TX metadata length as small as eight bytes, but every\nsupported request needs the flags plus at least one eight-byte request\nfield. Such short metadata also lets the kernel read beyond the registered\narea.\n\nRequire 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve\ncompatibility with applications that do not use launch-time metadata."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/xdp/xdp_umem.c"
                    ],
                    "versions": [
                        {
                            "version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
                            "lessThan": "21b8536aee819792f1b4b38b9aacf2a073025d49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
                            "lessThan": "642c6e73fce17fdca93a5793c4d22359fda866d7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
                            "lessThan": "cfb9d2976b277e554e28c165e3eff4b4a8ea10bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
                            "lessThan": "1bb30b181d9f0484e141f8411e15ed906d5c6780",
                            "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/xdp/xdp_umem.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.45",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.8",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49"
                },
                {
                    "url": "https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780"
                }
            ],
            "title": "xsk: require at least 16 bytes of TX metadata",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}