{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix potential DMA mapping leak\n\nWith buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap\ncould potentially inherit a non-zero value from stack garbage.\nIf this happens, it will cause DMA mappings for MCU command frames to not be\nunmapped after completion"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/dma.c"
               ],
               "versions": [
                  {
                     "version": "27d5c528a7ca",
                     "lessThan": "9fa26701cd1f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "27d5c528a7ca",
                     "lessThan": "9b68ce2856da",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "27d5c528a7ca",
                     "lessThan": "91b9548d413f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "27d5c528a7ca",
                     "lessThan": "b4403cee6400",
                     "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/net/wireless/mediatek/mt76/dma.c"
               ],
               "versions": [
                  {
                     "version": "5.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.10",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.37",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.11.21",
                     "lessThanOrEqual": "5.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.12.4",
                     "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/9fa26701cd1fc4d932d431971efc5746325bdfce"
            },
            {
               "url": "https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08"
            },
            {
               "url": "https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c"
            },
            {
               "url": "https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf"
            }
         ],
         "title": "mt76: fix potential DMA mapping leak",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47064",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}