{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23384",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:46.008Z",
        "datePublished": "2026-03-25T10:28:02.818Z",
        "dateUpdated": "2026-05-11T22:05:50.100Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:05:50.100Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ionic: Fix kernel stack leak in ionic_create_cq()\n\nstruct ionic_cq_resp resp {\n    __u32 cqid[2];         // offset 0 - PARTIALLY SET (see below)\n    __u8  udma_mask;       // offset 8 - SET (resp.udma_mask = vcq->udma_mask)\n    __u8  rsvd[7];         // offset 9 - NEVER SET <- LEAK\n};\n\nrsvd[7]: 7 bytes of stack memory leaked unconditionally.\n\ncqid[2]: The loop at line 1256 iterates over udma_idx but skips indices\nwhere !(vcq->udma_mask & BIT(udma_idx)). The array has 2 entries but\nudma_count could be 1, meaning cqid[1] might never be written via\nionic_create_cq_common(). If udma_mask only has bit 0 set, cqid[1] (4\nbytes) is also leaked. So potentially 11 bytes leaked."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/hw/ionic/ionic_controlpath.c"
                    ],
                    "versions": [
                        {
                            "version": "e8521822c733c6deab0f339843cd37cd62c12795",
                            "lessThan": "a6f3e0fa8e862f220c26c2f27e5ddc42eb82ad3e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e8521822c733c6deab0f339843cd37cd62c12795",
                            "lessThan": "547d0b07ad73915b323bc21f85c5d3252bebbbcf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e8521822c733c6deab0f339843cd37cd62c12795",
                            "lessThan": "faa72102b178c7ae6c6afea23879e7c84fc59b4e",
                            "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/infiniband/hw/ionic/ionic_controlpath.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.17",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.7",
                            "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": "6.18",
                                    "versionEndExcluding": "6.18.17"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "6.19.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a6f3e0fa8e862f220c26c2f27e5ddc42eb82ad3e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/547d0b07ad73915b323bc21f85c5d3252bebbbcf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/faa72102b178c7ae6c6afea23879e7c84fc59b4e"
                }
            ],
            "title": "RDMA/ionic: Fix kernel stack leak in ionic_create_cq()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}