{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "3.13"
              },
              {
                "fixed": "4.4.290"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "4.5"
              },
              {
                "fixed": "4.9.288"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "4.10"
              },
              {
                "fixed": "4.14.252"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "4.15"
              },
              {
                "fixed": "4.19.213"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "4.20"
              },
              {
                "fixed": "5.4.155"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "5.5"
              },
              {
                "fixed": "5.10.75"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "5.11"
              },
              {
                "fixed": "5.14.14"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.15-rc1"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.15-rc2"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.15-rc3"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.15-rc4"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.15-rc5"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: digital: fix possible memory leak in digital_in_send_sdd_req()\n\n'skb' is allocated in digital_in_send_sdd_req(), but not free when\ndigital_in_send_cmd() failed, which will cause memory leak. Fix it\nby freeing 'skb' if digital_in_send_cmd() return failed.",
  "id": "CVE-2021-47442",
  "modified": "2026-03-15T21:48:18.179448640Z",
  "published": "2024-05-22T07:15:09.430Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/50cb95487c265187289810addec5093d4fed8329"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/74569c78aa84f8c958f1334b465bc530906ec99a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/88c890b0b9a1fb9fcd01c61ada515e8b636c34f9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fcce6e5255474ca33c27dda0cdf9bf5087278873"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/071bdef36391958c89af5fa2172f691b31baa212"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/291c932fc3692e4d211a445ba8aa35663831bac7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2bde4aca56db9fe25405d39ddb062531493a65db"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}