{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntools/power turbostat: Fix offset overflow issue in index converting\n\nThe idx_to_offset() function returns type int (32-bit signed), but\nMSR_PKG_ENERGY_STAT is u32 and would be interpreted as a negative number.\nThe end result is that it hits the if (offset < 0) check in update_msr_sum()\nwhich prevents the timer callback from updating the stat in the background when\nlong durations are used. The similar issue exists in offset_to_idx() and\nupdate_msr_sum(). Fix this issue by converting the 'int' to 'off_t' accordingly."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "tools/power/x86/turbostat/turbostat.c"
               ],
               "versions": [
                  {
                     "version": "9972d5d84d76",
                     "lessThan": "ea6803ff2cd1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9972d5d84d76",
                     "lessThan": "dbdf22fc825f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9972d5d84d76",
                     "lessThan": "337b1546cde8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9972d5d84d76",
                     "lessThan": "13a779de4175",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "tools/power/x86/turbostat/turbostat.c"
               ],
               "versions": [
                  {
                     "version": "5.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.10",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.36",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.11.20",
                     "lessThanOrEqual": "5.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.12.3",
                     "lessThanOrEqual": "5.12.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/ea6803ff2cd1a2d7d880256bf562172b708a76ff"
            },
            {
               "url": "https://git.kernel.org/stable/c/dbdf22fc825fdb1d97f23230064e0f9819471628"
            },
            {
               "url": "https://git.kernel.org/stable/c/337b1546cde87fb8588ddaedf0201b769baa572a"
            },
            {
               "url": "https://git.kernel.org/stable/c/13a779de4175df602366d129e41782ad7168cef0"
            }
         ],
         "title": "tools/power turbostat: Fix offset overflow issue in index converting",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-46940",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}