{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: fix potential use-after-free in ec_bhf_remove\n\nstatic void ec_bhf_remove(struct pci_dev *dev)\n{\n...\n\tstruct ec_bhf_priv *priv = netdev_priv(net_dev);\n\n\tunregister_netdev(net_dev);\n\tfree_netdev(net_dev);\n\n\tpci_iounmap(dev, priv->dma_io);\n\tpci_iounmap(dev, priv->io);\n...\n}\n\npriv is netdev private data, but it is used\nafter free_netdev(). It can cause use-after-free when accessing priv\npointer. So, fix it by moving free_netdev() after pci_iounmap()\ncalls."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ethernet/ec_bhf.c"
               ],
               "versions": [
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "db2bc3cfd2bc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "1cafc540b7bf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "b1ad28375509",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "0260916843cc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "19f88ca68ccf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "95deeb29d831",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "d11d79e52ba0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6af55ff52b02",
                     "lessThan": "9cca0c2d7014",
                     "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/ethernet/ec_bhf.c"
               ],
               "versions": [
                  {
                     "version": "3.15",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.15",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.4.274",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.274",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.238",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.196",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.128",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.46",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.12.13",
                     "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/db2bc3cfd2bc01621014d4f17cdfc74611f339c8"
            },
            {
               "url": "https://git.kernel.org/stable/c/1cafc540b7bf1b6a5a77dc000205fe337ef6eba6"
            },
            {
               "url": "https://git.kernel.org/stable/c/b1ad283755095a4b9d1431aeb357d7df1a33d3bb"
            },
            {
               "url": "https://git.kernel.org/stable/c/0260916843cc74f3906acf8b6f256693e01530a2"
            },
            {
               "url": "https://git.kernel.org/stable/c/19f88ca68ccf8771276a606765239b167654f84a"
            },
            {
               "url": "https://git.kernel.org/stable/c/95deeb29d831e2fae608439e243e7a520611e7ea"
            },
            {
               "url": "https://git.kernel.org/stable/c/d11d79e52ba080ee567cb7d7eb42a5ade60a8130"
            },
            {
               "url": "https://git.kernel.org/stable/c/9cca0c2d70149160407bda9a9446ce0c29b6e6c6"
            }
         ],
         "title": "net: ethernet: fix potential use-after-free in ec_bhf_remove",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47235",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}