cvelist/2024/35xxx/CVE-2024-35985.json

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{
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"data_version": "4.0",
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-35985",
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"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
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},
"description": {
"description_data": [
{
"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf()\n\nIt was possible to have pick_eevdf() return NULL, which then causes a\nNULL-deref. This turned out to be due to entity_eligible() returning\nfalsely negative because of a s64 multiplcation overflow.\n\nSpecifically, reweight_eevdf() computes the vlag without considering\nthe limit placed upon vlag as update_entity_lag() does, and then the\nscaling multiplication (remember that weight is 20bit fixed point) can\noverflow. This then leads to the new vruntime being weird which then\ncauses the above entity_eligible() to go side-ways and claim nothing\nis eligible.\n\nThus limit the range of vlag accordingly.\n\nAll this was quite rare, but fatal when it does happen."
}
]
},
"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": "14204acc09f6",
"version_value": "470d347b14b0"
},
{
"version_affected": "<",
"version_name": "eab03c23c2a1",
"version_value": "06f27e6d7bf0"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "6.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.7",
"status": "unaffected",
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"versionType": "semver"
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},
{
"version": "6.6.30",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
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"versionType": "semver"
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},
{
"version": "6.8.9",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
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"versionType": "semver"
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},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/470d347b14b0ecffa9b39cf8f644fa2351db3efb",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/470d347b14b0ecffa9b39cf8f644fa2351db3efb"
},
{
"url": "https://git.kernel.org/stable/c/06f27e6d7bf0abf54488259ef36bbf0e1fccb35c",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/06f27e6d7bf0abf54488259ef36bbf0e1fccb35c"
},
{
"url": "https://git.kernel.org/stable/c/1560d1f6eb6b398bddd80c16676776c0325fe5fe",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/1560d1f6eb6b398bddd80c16676776c0325fe5fe"
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}
]
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},
"generator": {
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"engine": "bippy-9e1c9544281a"
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}
}