{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix memory leak in tcindex_partial_destroy_work\n\nSyzbot reported memory leak in tcindex_set_parms(). The problem was in\nnon-freed perfect hash in tcindex_partial_destroy_work().\n\nIn tcindex_set_parms() new tcindex_data is allocated and some fields from\nold one are copied to new one, but not the perfect hash. Since\ntcindex_partial_destroy_work() is the destroy function for old\ntcindex_data, we need to free perfect hash to avoid memory leak."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/sched/cls_tcindex.c"
               ],
               "versions": [
                  {
                     "version": "331b72922c5f",
                     "lessThan": "8d7924ce85ba",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "331b72922c5f",
                     "lessThan": "8e9662fde6d6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "331b72922c5f",
                     "lessThan": "cac71d27745f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "331b72922c5f",
                     "lessThan": "f5051bcece50",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/sched/cls_tcindex.c"
               ],
               "versions": [
                  {
                     "version": "3.18",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.18",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.136",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.54",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13.6",
                     "lessThanOrEqual": "5.13.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62"
            },
            {
               "url": "https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b"
            },
            {
               "url": "https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1"
            },
            {
               "url": "https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32"
            }
         ],
         "title": "net: sched: fix memory leak in tcindex_partial_destroy_work",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47295",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}