{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31646",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.127Z",
        "datePublished": "2026-04-24T14:44:59.874Z",
        "dateUpdated": "2026-05-11T22:12:50.586Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:12:50.586Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()\n\npage_pool_create() can return an ERR_PTR on failure. The return value\nis used unconditionally in the loop that follows, passing the error\npointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(),\nwhich dereferences it, causing a kernel oops.\n\nAdd an IS_ERR check after page_pool_create() to return early on failure."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
                    ],
                    "versions": [
                        {
                            "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                            "lessThan": "e63265f188ea39dcf5f546770650027528f3bd0f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                            "lessThan": "305832c53551cfbe6e5b81ca7ee765e60f4fe8e9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                            "lessThan": "b5dcb41ba891b55157006cac79825c78a32b409e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                            "lessThan": "7caf90d9ab97951a58d1de85ab7e7d7cca7a4513",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                            "lessThan": "3fd0da4fd8851a7e62d009b7db6c4a05b092bc19",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
                    ],
                    "versions": [
                        {
                            "version": "6.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.135",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.82",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.23",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.13",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "6.2",
                                    "versionEndExcluding": "6.6.135"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.12.82"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.18.23"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.19.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19"
                }
            ],
            "title": "net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}