{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80880",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.799Z",
        "datePublished": "2026-09-04T16:49:05.562Z",
        "dateUpdated": "2026-09-04T16:49:05.562Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-04T16:49:05.562Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Properly support implicit ODP rereg_mr\n\nDue to all the child mkeys in the implicit ODP configuration we cannot\nchange anything in place for the parent mkey. Instead the whole thing\nneeds to be rebuilt if any change is requested. If the user does not\nspecify a translation then force the implicit values which will then fall\nthrough the logic into mlx5_ib_reg_user_mr() to allocate a completely new\nMR.\n\nSince implicit children were also touching the mr->pd, this removes\nanother case where the access was racy."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/hw/mlx5/mr.c"
                    ],
                    "versions": [
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "cbc9982c8573fb9e35040063aa78c8ebe768a1ff",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "eb7cb798e563b3f3b3baeb9cc6f7455764267e50",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "d4f84bfa089fe71f775d25beb29303e844494c25",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "5d02b9a2efd11d28d2a8feac7769686b1b871d9c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ef3642c4f54d3493c92c71faf46139b2473bc532",
                            "lessThan": "ee7a8335069150c3f1893a697ab30bbeca00d796",
                            "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/mlx5/mr.c"
                    ],
                    "versions": [
                        {
                            "version": "5.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "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": "5.11",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cbc9982c8573fb9e35040063aa78c8ebe768a1ff"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69"
                },
                {
                    "url": "https://git.kernel.org/stable/c/94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eb7cb798e563b3f3b3baeb9cc6f7455764267e50"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d4f84bfa089fe71f775d25beb29303e844494c25"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5d02b9a2efd11d28d2a8feac7769686b1b871d9c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ee7a8335069150c3f1893a697ab30bbeca00d796"
                }
            ],
            "title": "IB/mlx5: Properly support implicit ODP rereg_mr",
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}