{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64094",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.032Z",
        "datePublished": "2026-07-19T15:40:01.772Z",
        "dateUpdated": "2026-07-19T15:40:01.772Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T15:40:01.772Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: avoid NULL-ptr deref for claim via dropped interface\n\nWithout rtnl_lock held, a hardif might be retrieved as primary interface of\na meshif, but then (while operating on this interface) getting decoupled\nfrom the mesh interface. In this case, the meshif still exists but the\npointer from the primary hardif to the meshif is set to NULL.\n\nThe mesh_iface must be checked first to be non-NULL before continuing to\nsend an ARP request using meshif."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/bridge_loop_avoidance.c"
                    ],
                    "versions": [
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "53cb3511f6eda37d3bd923545fdba6013b6d7bb7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "efb62458c94db1fe3a287e7e89c31b0cfb03f938",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "2a8c9e86529156c62d9187b9ed9454c31665ad33",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "6921a7683ae9ad0208d829e71f725a9e25ccff49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "555b8d3f5c313d81d46274fd0976352dafc80124",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "23721387c409087fd3b97e274f34d3ddc0970b74",
                            "lessThan": "f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/bridge_loop_avoidance.c"
                    ],
                    "versions": [
                        {
                            "version": "3.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.34",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.11",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "3.5",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.6.143"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.12.93"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.18.34"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "7.0.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70"
                },
                {
                    "url": "https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49"
                },
                {
                    "url": "https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24"
                }
            ],
            "title": "batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}