{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74559",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.916Z",
        "datePublished": "2026-08-15T12:28:03.279Z",
        "dateUpdated": "2026-10-21T12:45:57.288Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:45:57.288Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: drain continuation descs after overflow in xsk_build_skb()\n\nFix generic xmit path multi-buffer logic when packets are either too big\n(count of descriptors exceed MAX_SKB_FRAGS) or an invalid descriptor is\nincluded in fragmented packet. Introduce xdp_sock::drain_cont and act\nupon this flag - when it is set, keep on consuming descriptors from\nAF_XDP Tx ring and put them directly onto Cq. Previously these\ndescriptors were silently lost and could never be reached again."
                }
            ],
            "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.h",
                        "net/xdp/xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "cf24f5a5feeaae34c1a34d1e04f8ac697290427a",
                            "lessThan": "ecd0d1cde0478c232a867f14ec99cf97aff5eb30",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cf24f5a5feeaae34c1a34d1e04f8ac697290427a",
                            "lessThan": "ceb00cb87a22c42d20c39336213db2b843ca9e34",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cf24f5a5feeaae34c1a34d1e04f8ac697290427a",
                            "lessThan": "5e94d74e4f3baebaa083288f33b4be7ce0a34982",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cf24f5a5feeaae34c1a34d1e04f8ac697290427a",
                            "lessThan": "bd44a6dcd4248883de90f5dad53ae80066e27096",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/xdp_sock.h",
                        "net/xdp/xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "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": "6.6",
                                    "versionEndExcluding": "6.12.114"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.18.44"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.1.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ecd0d1cde0478c232a867f14ec99cf97aff5eb30"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ceb00cb87a22c42d20c39336213db2b843ca9e34"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5e94d74e4f3baebaa083288f33b4be7ce0a34982"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bd44a6dcd4248883de90f5dad53ae80066e27096"
                }
            ],
            "title": "xsk: drain continuation descs after overflow in xsk_build_skb()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}