{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74622",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.921Z",
        "datePublished": "2026-08-22T15:32:05.719Z",
        "dateUpdated": "2026-08-22T15:32:05.719Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:32:05.719Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atlantic: free RX pages of consumed but not refilled buffers\n\naq_ring_rx_deinit() only walks [sw_head, sw_tail), the region posted to\nhardware. Since the page reuse strategy was added, a cleaned RX buffer\nkeeps its page (and its DMA mapping) in the ring for reuse, and refill\nis batched: aq_ring_rx_fill() returns early until AQ_CFG_RX_REFILL_THRES\nslots are free. Slots that were consumed but not yet reposted therefore\nsit in the complementary [sw_tail, sw_head) gap with a live page, and\nthe deinit walk never visits them: up to a refill batch worth of pages\nand DMA mappings leak on every interface down.\n\nWalk the whole ring instead and release whatever is still there. Also\nbail out if the buffer ring is already gone: a partial\naq_ptp_ring_alloc() failure frees the ring but leaves aq_nic set, so\naq_ptp_ring_deinit() still gets here on the unwind path."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/aquantia/atlantic/aq_ring.c"
                    ],
                    "versions": [
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "1e58b0bab40dcbdfc04acaba6a221d40801c3770",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "30c473ea097ef0c93b064281b3e295c97d17e28b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "17c99dd86f169c7a3e73d6778e79ef5b1ed3ceac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "ff451bc4290b79c04f1c5cfa928d448f9d47ecf5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "64e1346bc66b947eb80b848e4c8d9828ba50e0fe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "782cc40b7ade4614a8aec0b948b8cf95c69f8d4b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "24d87dc28ddd3771dd0e88719209811809729439",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86",
                            "lessThan": "e8e7471ef686b6c002218fee9671cc61992ae01a",
                            "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/aquantia/atlantic/aq_ring.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.265",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "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": "5.2",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "6.6.152"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "7.2"
                                }
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1e58b0bab40dcbdfc04acaba6a221d40801c3770"
                },
                {
                    "url": "https://git.kernel.org/stable/c/30c473ea097ef0c93b064281b3e295c97d17e28b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/17c99dd86f169c7a3e73d6778e79ef5b1ed3ceac"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ff451bc4290b79c04f1c5cfa928d448f9d47ecf5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/64e1346bc66b947eb80b848e4c8d9828ba50e0fe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/782cc40b7ade4614a8aec0b948b8cf95c69f8d4b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/24d87dc28ddd3771dd0e88719209811809729439"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e8e7471ef686b6c002218fee9671cc61992ae01a"
                }
            ],
            "title": "net: atlantic: free RX pages of consumed but not refilled buffers",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}