{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-47325",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation\n\nThe reference counting issue happens in several exception handling paths\nof arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the\nfunction forgets to decrease the refcount of \"smmu\" increased by\narm_smmu_rpm_get(), causing a refcount leak.\n\nFix this issue by jumping to \"out\" label when those error scenarios\noccur."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "1da177e4c3f4",
                                            "version_value": "b11220803ad1"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.4.134",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.52",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.12.19",
                                                        "lessThanOrEqual": "5.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.13.4",
                                                        "lessThanOrEqual": "5.13.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.14",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0"
            },
            {
                "url": "https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb"
            },
            {
                "url": "https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492"
            },
            {
                "url": "https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b"
            },
            {
                "url": "https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554"
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