{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74708",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.927Z",
        "datePublished": "2026-08-22T15:33:05.956Z",
        "dateUpdated": "2026-08-22T15:33:05.956Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:33:05.956Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: validate launch-time metadata size\n\nLaunch-time metadata extends beyond the first 16 bytes of struct\nxsk_tx_metadata. Reject the request when the registered metadata area does\nnot contain the complete field.\n\nSnapshot the validated flags for the generic transmit path and use that\nsnapshot for request and completion processing, avoiding inconsistent\ndecisions if user space changes the flags concurrently.\n\nNote that only xsk_skb_metadata is properly using the flags,\n__xsk_buff_get_metadata ignores them. Next commits address that."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/xdp_sock_drv.h",
                        "net/xdp/xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "af511afa1d2977f384044df78d6fbf9fba653f7a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "bc63d47611c07b0d5d655fe1a590861931527920",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "439ce2dddf3d22129b9113a7881637256a35e936",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d9d736c416c9a85f84e15435ba82a177262e745b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.14.2",
                            "lessThan": "6.15",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/xdp_sock_drv.h",
                        "net/xdp/xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "6.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.15",
                            "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": "6.15",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/af511afa1d2977f384044df78d6fbf9fba653f7a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bc63d47611c07b0d5d655fe1a590861931527920"
                },
                {
                    "url": "https://git.kernel.org/stable/c/439ce2dddf3d22129b9113a7881637256a35e936"
                }
            ],
            "title": "xsk: validate launch-time metadata size",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}