{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74707",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.927Z",
        "datePublished": "2026-08-22T15:33:05.337Z",
        "dateUpdated": "2026-08-22T15:33:05.337Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:33:05.337Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: validate metadata when processing requests\n\nThe zero-copy path validates TX metadata while obtaining the descriptor\ncontext, then reads it again later when preparing the hardware request.\nUser space can change the metadata between those operations and bypass the\noriginal validation.\n\nValidate the metadata in xsk_tx_metadata_request() and use the resulting\nflags snapshot for every feature check. Read request fields once so all\nzero-copy drivers process only values observed after successful\nvalidation."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/igc/igc_main.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c",
                        "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
                        "include/net/libeth/xsk.h",
                        "include/net/xdp_sock_drv.h",
                        "net/xdp/xsk_buff_pool.c"
                    ],
                    "versions": [
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "5fd121971912dee2f5af1efec64462ac722deb17",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "0cc7aa6e0d19027fdd42e6fbd156267ac1e3bbba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ca4419f15abd19ba8be1e109661b60f9f5b6c9f0",
                            "lessThan": "849b1664dbda1cf6c63e0fd4f9dec23782b8c851",
                            "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": [
                        "drivers/net/ethernet/intel/igc/igc_main.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c",
                        "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
                        "include/net/libeth/xsk.h",
                        "include/net/xdp_sock_drv.h",
                        "net/xdp/xsk_buff_pool.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/5fd121971912dee2f5af1efec64462ac722deb17"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0cc7aa6e0d19027fdd42e6fbd156267ac1e3bbba"
                },
                {
                    "url": "https://git.kernel.org/stable/c/849b1664dbda1cf6c63e0fd4f9dec23782b8c851"
                }
            ],
            "title": "xsk: validate metadata when processing requests",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}