{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncfg80211: call cfg80211_stop_ap when switch from P2P_GO type\n\nIf the userspace tools switch from NL80211_IFTYPE_P2P_GO to\nNL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it\ndoes not call the cleanup cfg80211_stop_ap(), this leads to the\ninitialization of in-use data. For example, this path re-init the\nsdata->assigned_chanctx_list while it is still an element of\nassigned_vifs list, and makes that linked list corrupt."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/wireless/util.c"
               ],
               "versions": [
                  {
                     "version": "ac800140c20e",
                     "lessThan": "8f06bb8c216b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "0738cdb636c2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "4e458abbb4a5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "b8a045e2a9b2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "52affc201fc2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "7b97b5776daa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "5a9b671c8d74",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ac800140c20e",
                     "lessThan": "563fbefed46a",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/wireless/util.c"
               ],
               "versions": [
                  {
                     "version": "3.6",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.6",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "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/8f06bb8c216bcd172394f61e557727e691b4cb24"
            },
            {
               "url": "https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc"
            },
            {
               "url": "https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21"
            },
            {
               "url": "https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec"
            },
            {
               "url": "https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13"
            },
            {
               "url": "https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66"
            },
            {
               "url": "https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd"
            },
            {
               "url": "https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2"
            }
         ],
         "title": "cfg80211: call cfg80211_stop_ap when switch from P2P_GO type",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47194",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}