{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98486",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.352Z",
        "datePublished": "2026-10-18T15:16:03.002Z",
        "dateUpdated": "2026-10-21T12:55:12.350Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:55:12.350Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ena: fix MMIO read buffer leak on probe failure\n\nena_device_init() initializes the MMIO read mechanism with\nena_com_mmio_reg_read_request_init(), which allocates a coherent DMA\nbuffer for MMIO read responses.\n\nThe normal removal path releases this buffer through\nena_com_mmio_reg_read_request_destroy(). However, if ena_probe() fails\nafter ena_device_init() succeeds, the error path destroys the admin\nresources and eventually frees ena_dev without destroying the MMIO read\nrequest, leaving the coherent DMA buffer allocated.\n\nCall ena_com_mmio_reg_read_request_destroy() in the probe error path\nbefore releasing the remaining device resources.\n\nThis issue was found by manual code inspection."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/amazon/ena/ena_netdev.c"
                    ],
                    "versions": [
                        {
                            "version": "1738cd3ed342294360d6a74d4e58800004bff854",
                            "lessThan": "a0f5fd7a285f44fa402242f26feddfe1d4a0fc6c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1738cd3ed342294360d6a74d4e58800004bff854",
                            "lessThan": "7bd3e9a2d0c288e54f51df260d9433163f5fbc1e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1738cd3ed342294360d6a74d4e58800004bff854",
                            "lessThan": "30ff01b4c7e419bb70f40f01dcd7f6af680808b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1738cd3ed342294360d6a74d4e58800004bff854",
                            "lessThan": "47785f9f638b064ce6e32e8e3b6f1ffd83849fc2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1738cd3ed342294360d6a74d4e58800004bff854",
                            "lessThan": "9476b4468862927297c94c440863cd8ed1e7cc83",
                            "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/amazon/ena/ena_netdev.c"
                    ],
                    "versions": [
                        {
                            "version": "4.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.55",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "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": "4.9",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.18.55"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "7.2.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a0f5fd7a285f44fa402242f26feddfe1d4a0fc6c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7bd3e9a2d0c288e54f51df260d9433163f5fbc1e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/30ff01b4c7e419bb70f40f01dcd7f6af680808b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/47785f9f638b064ce6e32e8e3b6f1ffd83849fc2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9476b4468862927297c94c440863cd8ed1e7cc83"
                }
            ],
            "title": "net: ena: fix MMIO read buffer leak on probe failure",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}