{
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    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-46993",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched: Fix out-of-bound access in uclamp\n\nUtil-clamp places tasks in different buckets based on their clamp values\nfor performance reasons. However, the size of buckets is currently\ncomputed using a rounding division, which can lead to an off-by-one\nerror in some configurations.\n\nFor instance, with 20 buckets, the bucket size will be 1024/20=51. A\ntask with a clamp of 1024 will be mapped to bucket id 1024/51=20. Sadly,\ncorrect indexes are in range [0,19], hence leading to an out of bound\nmemory access.\n\nClamp the bucket id to fix the issue."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
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                    {
                        "lang": "eng",
                        "value": "n/a"
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    },
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                    "product": {
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                                "product_name": "Linux",
                                "version": {
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                                            "version_name": "69842cba9ace",
                                            "version_value": "687f523c134b"
                                        },
                                        {
                                            "version_value": "not down converted",
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                                                        "version": "5.3",
                                                        "status": "affected"
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                                                        "version": "0",
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                                                        "lessThanOrEqual": "5.4.*",
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                                                        "version": "5.10.38",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
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                                                    {
                                                        "version": "5.11.22",
                                                        "lessThanOrEqual": "5.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.12.5",
                                                        "lessThanOrEqual": "5.12.*",
                                                        "status": "unaffected",
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                                                        "version": "5.13",
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                "url": "https://git.kernel.org/stable/c/687f523c134b7f0bd040ee1230f6d17990d54172",
                "refsource": "MISC",
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