{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: set debugfs_name to NULL after it is freed\n\nThere is a upstream commit cffa4b2122f5(\"regmap:debugfs:\nFix a memory leak when calling regmap_attach_dev\") that\nadds a if condition when create name for debugfs_name.\nWith below function invoking logical, debugfs_name is\nfreed in regmap_debugfs_exit(), but it is not created again\nbecause of the if condition introduced by above commit.\nregmap_reinit_cache()\n\tregmap_debugfs_exit()\n\t...\n\tregmap_debugfs_init()\nSo, set debugfs_name to NULL after it is freed."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/base/regmap/regmap-debugfs.c"
               ],
               "versions": [
                  {
                     "version": "5b654b030079",
                     "lessThan": "2dc1554d5f0f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "480c5e9c7e4c",
                     "lessThan": "d8897f7b2283",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c9698380b01a",
                     "lessThan": "eb949f891226",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "cffa4b2122f5",
                     "lessThan": "c764e375ae64",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "cffa4b2122f5",
                     "lessThan": "b9e569ae1da3",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "cffa4b2122f5",
                     "lessThan": "e41a962f82e7",
                     "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/base/regmap/regmap-debugfs.c"
               ],
               "versions": [
                  {
                     "version": "5.11",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.11",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.191",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.119",
                     "lessThanOrEqual": "5.4.*",
                     "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/2dc1554d5f0fdaf47cc5bea442b84b9226fea867"
            },
            {
               "url": "https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52"
            },
            {
               "url": "https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6"
            },
            {
               "url": "https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d"
            },
            {
               "url": "https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a"
            },
            {
               "url": "https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268"
            }
         ],
         "title": "regmap: set debugfs_name to NULL after it is freed",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47058",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}