{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: sja1000: fix use after free in ems_pcmcia_add_card()\n\nIf the last channel is not available then \"dev\" is freed.  Fortunately,\nwe can just use \"pdev->irq\" instead.\n\nAlso we should check if at least one channel was set up."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/can/sja1000/ems_pcmcia.c"
               ],
               "versions": [
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "cbd86110546f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "1dd5b819f7e4",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "c8718026ba28",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "ccf070183e46",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "1a295fea90e1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "923f4dc5df67",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "474f9a8534f5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fd734c6f25ae",
                     "lessThan": "3ec6ca6b1a8e",
                     "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/can/sja1000/ems_pcmcia.c"
               ],
               "versions": [
                  {
                     "version": "3.2",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.2",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.4.295",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.293",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.258",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.221",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.165",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.85",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.8",
                     "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/cbd86110546f7f730a1f5d7de56c944a336c15c4"
            },
            {
               "url": "https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a"
            },
            {
               "url": "https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36"
            },
            {
               "url": "https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa"
            },
            {
               "url": "https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec"
            },
            {
               "url": "https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288"
            },
            {
               "url": "https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce"
            },
            {
               "url": "https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45"
            }
         ],
         "title": "can: sja1000: fix use after free in ems_pcmcia_add_card()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47521",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}