{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: Fix a memory corruption issue\n\nA few lines above, space is kzalloc()'ed for:\n\tsizeof(struct iwl_nvm_data) +\n\tsizeof(struct ieee80211_channel) +\n\tsizeof(struct ieee80211_rate)\n\n'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine.\n\nAt the end of this structure, there is the 'channels' flex array.\nEach element is of type 'struct ieee80211_channel'.\nSo only 1 element is allocated in this array.\n\nWhen doing:\n  mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;\nWe point at the first element of the 'channels' flex array.\nSo this is fine.\n\nHowever, when doing:\n  mvm->nvm_data->bands[0].bitrates =\n\t\t\t(void *)((u8 *)mvm->nvm_data->channels + 1);\nbecause of the \"(u8 *)\" cast, we add only 1 to the address of the beginning\nof the flex array.\n\nIt is likely that we want point at the 'struct ieee80211_rate' allocated\njust after.\n\nRemove the spurious casting so that the pointer arithmetic works as\nexpected."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/wireless/intel/iwlwifi/mvm/fw.c"
               ],
               "versions": [
                  {
                     "version": "8ca151b568b6",
                     "lessThan": "7c8faa310803",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8ca151b568b6",
                     "lessThan": "6b3223449c95",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8ca151b568b6",
                     "lessThan": "f06cdd8d4ba5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8ca151b568b6",
                     "lessThan": "8ba438ef3cac",
                     "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/intel/iwlwifi/mvm/fw.c"
               ],
               "versions": [
                  {
                     "version": "3.9",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.9",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.135",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.57",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.5.7",
                     "lessThanOrEqual": "6.5.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef"
            },
            {
               "url": "https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0"
            },
            {
               "url": "https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128"
            },
            {
               "url": "https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d"
            }
         ],
         "title": "wifi: iwlwifi: mvm: Fix a memory corruption issue",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52531",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}