cve/published/2021/CVE-2021-47596.json

{
   "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: hns3: fix use-after-free bug in hclgevf_send_mbx_msg\n\nCurrently, the hns3_remove function firstly uninstall client instance,\nand then uninstall acceletion engine device. The netdevice is freed in\nclient instance uninstall process, but acceletion engine device uninstall\nprocess still use it to trace runtime information. This causes a use after\nfree problem.\n\nSo fixes it by check the instance register state to avoid use after free."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c"
               ],
               "versions": [
                  {
                     "version": "d8355240cf8fb8b9e002b5c8458578435cea85c2",
                     "lessThan": "12512bc8f25b8ba9795dfbae0e9ca57ff13fd542",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d8355240cf8fb8b9e002b5c8458578435cea85c2",
                     "lessThan": "4f4a353f6fe033807cd026a5de81c67469ff19b0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d8355240cf8fb8b9e002b5c8458578435cea85c2",
                     "lessThan": "27cbf64a766e86f068ce6214f04c00ceb4db1af4",
                     "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/hisilicon/hns3/hns3vf/hclgevf_mbx.c"
               ],
               "versions": [
                  {
                     "version": "5.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.8",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.10.88",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15.11",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.16",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.8",
                           "versionEndExcluding": "5.10.88"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.8",
                           "versionEndExcluding": "5.15.11"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.8",
                           "versionEndExcluding": "5.16"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/12512bc8f25b8ba9795dfbae0e9ca57ff13fd542"
            },
            {
               "url": "https://git.kernel.org/stable/c/4f4a353f6fe033807cd026a5de81c67469ff19b0"
            },
            {
               "url": "https://git.kernel.org/stable/c/27cbf64a766e86f068ce6214f04c00ceb4db1af4"
            }
         ],
         "title": "net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47596",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}