{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-buf/sync_file: Don't leak fences on merge failure\n\nEach add_fence() call does a dma_fence_get() on the relevant fence.  In\nthe error path, we weren't calling dma_fence_put() so all those fences\ngot leaked.  Also, in the krealloc_array failure case, we weren't\nfreeing the fences array.  Instead, ensure that i and fences are always\nzero-initialized and dma_fence_put() all the fences and kfree(fences) on\nevery error path."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/dma-buf/sync_file.c"
               ],
               "versions": [
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "19f51c252933",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "e0355a0ad31a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "41f45e91c92c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "0d514185ae79",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "19edcd97727a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a02b9dc90d84",
                     "lessThan": "ffe000217c50",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/dma-buf/sync_file.c"
               ],
               "versions": [
                  {
                     "version": "4.9",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.9",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.241",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.199",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.135",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.53",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13.5",
                     "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/19f51c2529339280d2c8c6427cd3e21ddf1ac3f8"
            },
            {
               "url": "https://git.kernel.org/stable/c/e0355a0ad31a1d677b2a4514206de4902bd550e8"
            },
            {
               "url": "https://git.kernel.org/stable/c/41f45e91c92c8480242ea448d54e28c753b13902"
            },
            {
               "url": "https://git.kernel.org/stable/c/0d514185ae792d3a1903c8e1a83899aa996705ce"
            },
            {
               "url": "https://git.kernel.org/stable/c/19edcd97727aae9362444a859a24d99a8730cb27"
            },
            {
               "url": "https://git.kernel.org/stable/c/ffe000217c5068c5da07ccb1c0f8cce7ad767435"
            }
         ],
         "title": "dma-buf/sync_file: Don't leak fences on merge failure",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47305",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}