{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: gus: fix null pointer dereference on pointer block\n\nThe pointer block return from snd_gf1_dma_next_block could be\nnull, so there is a potential null pointer dereference issue.\nFix this by adding a null check before dereference."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/isa/gus/gus_dma.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "3e28e083dcdf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "cb09c760c201",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "542fa721594a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "ab4c1ebc40f6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "c6d2cefdd05c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "1ac6cd87d8dd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "16721797dcef",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "a0d21bb32794",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/isa/gus/gus_dma.c"
               ],
               "versions": [
                  {
                     "version": "4.4.293",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.291",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.256",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.218",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.162",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.82",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.5",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.16",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be"
            },
            {
               "url": "https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc"
            },
            {
               "url": "https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c"
            },
            {
               "url": "https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315"
            },
            {
               "url": "https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc"
            },
            {
               "url": "https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f"
            },
            {
               "url": "https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3"
            },
            {
               "url": "https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa"
            }
         ],
         "title": "ALSA: gus: fix null pointer dereference on pointer block",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47207",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}