{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "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."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/sched/fair.c"
               ],
               "versions": [
                  {
                     "version": "14204acc09f6",
                     "lessThan": "470d347b14b0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "eab03c23c2a1",
                     "lessThan": "06f27e6d7bf0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "eab03c23c2a1",
                     "lessThan": "1560d1f6eb6b",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/sched/fair.c"
               ],
               "versions": [
                  {
                     "version": "6.7",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.7",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.30",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.9",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/470d347b14b0ecffa9b39cf8f644fa2351db3efb"
            },
            {
               "url": "https://git.kernel.org/stable/c/06f27e6d7bf0abf54488259ef36bbf0e1fccb35c"
            },
            {
               "url": "https://git.kernel.org/stable/c/1560d1f6eb6b398bddd80c16676776c0325fe5fe"
            }
         ],
         "title": "sched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-35985",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}