cvelist/2024/26xxx/CVE-2024-26884.json
2024-11-05 10:03:14 +00:00

179 lines
9.5 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-26884",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"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."
}
]
},
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"description": [
{
"lang": "eng",
"value": "n/a"
}
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},
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"vendor": {
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{
"vendor_name": "Linux",
"product": {
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"product_name": "Linux",
"version": {
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"version_affected": "<",
"version_name": "daaf427c6ab3",
"version_value": "33ec04cadb77"
},
{
"version_value": "not down converted",
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"status": "affected"
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"version": "0",
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"status": "unaffected",
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