{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90080",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.785Z",
        "datePublished": "2026-09-17T16:05:58.199Z",
        "dateUpdated": "2026-10-19T08:57:36.840Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:57:36.840Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
                        "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
                        "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                            "lessThan": "b003d5b4e46ca5033859db601e12d36da24d0e40",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                            "lessThan": "7e33c6bd049b532d2ec4916895ef07e538bed905",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                            "lessThan": "b09a0503c755b6609fad59a84cc7f05b6843a03c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9bd7273cf1f9c5761d696cca821d25602e8f7009",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.14.9",
                            "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/marvell/octeontx2/nic/otx2_common.c",
                        "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
                        "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
                    ],
                    "versions": [
                        {
                            "version": "6.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.14.9"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c"
                }
            ],
            "title": "octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}