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        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
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    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix hashtab overflow check on 32-bit arches\n\nThe hashtab code relies on roundup_pow_of_two() to compute the number of\nhash buckets, and contains an overflow check by checking if the\nresulting value is 0. However, on 32-bit arches, the roundup code itself\ncan overflow by doing a 32-bit left-shift of an unsigned long value,\nwhich is undefined behaviour, so it is not guaranteed to truncate\nneatly. This was triggered by syzbot on the DEVMAP_HASH type, which\ncontains the same check, copied from the hashtab code. So apply the same\nfix to hashtab, by moving the overflow check to before the roundup."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
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                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
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                                "version": {
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                                            "version_value": "33ec04cadb77"
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                                                        "version": "3.19",
                                                        "status": "affected"
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                                                    {
                                                        "version": "0",
                                                        "lessThan": "3.19",
                                                        "status": "unaffected",
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                                                    {
                                                        "version": "4.19.311",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
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                                                        "version": "5.4.273",
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                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.214",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.153",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
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                                                    {
                                                        "version": "6.1.83",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
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                                                        "lessThanOrEqual": "6.6.*",
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                                                    {
                                                        "version": "6.9",
                                                        "lessThanOrEqual": "*",
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                "url": "https://git.kernel.org/stable/c/33ec04cadb77605b71d9298311919303d390c4d5",
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                "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
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