cve/published/2021/CVE-2021-47467.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkunit: fix reference count leak in kfree_at_end\n\nThe reference counting issue happens in the normal path of\nkfree_at_end(). When kunit_alloc_and_get_resource() is invoked, the\nfunction forgets to handle the returned resource object, whose refcount\nincreased inside, causing a refcount leak.\n\nFix this issue by calling kunit_alloc_resource() instead of\nkunit_alloc_and_get_resource().\n\nFixed the following when applying:\nShuah Khan <skhan@linuxfoundation.org>\n\nCHECK: Alignment should match open parenthesis\n+\tkunit_alloc_resource(test, NULL, kfree_res_free, GFP_KERNEL,\n \t\t\t\t     (void *)to_free);"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "lib/kunit/executor_test.c"
               ],
               "versions": [
                  {
                     "version": "1d71307a6f94df3750f8f884545a769e227172fe",
                     "lessThan": "bbdd158b40b66a9403391a517f24ef6613573446",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1d71307a6f94df3750f8f884545a769e227172fe",
                     "lessThan": "f62314b1ced25c58b86e044fc951cd6a1ea234cf",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "lib/kunit/executor_test.c"
               ],
               "versions": [
                  {
                     "version": "5.14",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.14",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.14.15",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.14",
                           "versionEndExcluding": "5.14.15"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.14",
                           "versionEndExcluding": "5.15"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/bbdd158b40b66a9403391a517f24ef6613573446"
            },
            {
               "url": "https://git.kernel.org/stable/c/f62314b1ced25c58b86e044fc951cd6a1ea234cf"
            }
         ],
         "title": "kunit: fix reference count leak in kfree_at_end",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47467",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}