cve/published/2021/CVE-2021-47523.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\nIB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr\n\nThis buffer is currently allocated in hfi1_init():\n\n\tif (reinit)\n\t\tret = init_after_reset(dd);\n\telse\n\t\tret = loadtime_init(dd);\n\tif (ret)\n\t\tgoto done;\n\n\t/* allocate dummy tail memory for all receive contexts */\n\tdd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,\n\t\t\t\t\t\t\t sizeof(u64),\n\t\t\t\t\t\t\t &dd->rcvhdrtail_dummy_dma,\n\t\t\t\t\t\t\t GFP_KERNEL);\n\n\tif (!dd->rcvhdrtail_dummy_kvaddr) {\n\t\tdd_dev_err(dd, \"cannot allocate dummy tail memory\\n\");\n\t\tret = -ENOMEM;\n\t\tgoto done;\n\t}\n\nThe reinit triggered path will overwrite the old allocation and leak it.\n\nFix by moving the allocation to hfi1_alloc_devdata() and the deallocation\nto hfi1_free_devdata()."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/infiniband/hw/hfi1/init.c"
               ],
               "versions": [
                  {
                     "version": "46b010d3eeb8eb29c740c4ef09c666485f5c07e6",
                     "lessThan": "2c08271f4ed0e24633b3f81ceff61052b9d45efc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "46b010d3eeb8eb29c740c4ef09c666485f5c07e6",
                     "lessThan": "834d0fb978643eaf09da425de197cc16a7c2761b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "46b010d3eeb8eb29c740c4ef09c666485f5c07e6",
                     "lessThan": "60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1",
                     "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/infiniband/hw/hfi1/init.c"
               ],
               "versions": [
                  {
                     "version": "4.5",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.5",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.10.85",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15.8",
                     "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": "4.5",
                           "versionEndExcluding": "5.10.85"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "4.5",
                           "versionEndExcluding": "5.15.8"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "4.5",
                           "versionEndExcluding": "5.16"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2c08271f4ed0e24633b3f81ceff61052b9d45efc"
            },
            {
               "url": "https://git.kernel.org/stable/c/834d0fb978643eaf09da425de197cc16a7c2761b"
            },
            {
               "url": "https://git.kernel.org/stable/c/60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1"
            }
         ],
         "title": "IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47523",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}