{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2021-47180",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47180",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-03-25T09:16:29.580Z",
    "updatedAt": "2026-05-11T13:49:31.554Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "NFC: nci: fix memory leak in nci_allocate_device",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: nci: fix memory leak in nci_allocate_device\n\nnfcmrvl_disconnect fails to free the hci_dev field in struct nci_dev.\nFix this by freeing hci_dev in nci_free_device.\n\nBUG: memory leak\nunreferenced object 0xffff888111ea6800 (size 1024):\n  comm \"kworker/1:0\", pid 19, jiffies 4294942308 (age 13.580s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff  .........`......\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<000000004bc25d43>] kmalloc include/linux/slab.h:552 [inline]\n    [<000000004bc25d43>] kzalloc include/linux/slab.h:682 [inline]\n    [<000000004bc25d43>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784\n    [<00000000c59cff92>] nci_allocate_device net/nfc/nci/core.c:1170 [inline]\n    [<00000000c59cff92>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132\n    [<00000000006e0a8e>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153\n    [<000000004da1b57e>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345\n    [<00000000d506aed9>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n    [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554\n    [<00000000f5009125>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740\n    [<000000000ce658ca>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846\n    [<000000007067d05f>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431\n    [<00000000f8e13372>] __device_attach+0x122/0x250 drivers/base/dd.c:914\n    [<000000009cf68860>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491\n    [<00000000359c965a>] device_add+0x5be/0xc30 drivers/base/core.c:3109\n    [<00000000086e4bd3>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164\n    [<00000000ca036872>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\n    [<00000000d40d36f6>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\n    [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "448a1cb12977f52142e6feb12022c59662d88dc1"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4a621621c7af3cec21c47c349b30cd9c3cea11c8"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c2fb2df46ea866b49fea5ec7112ec3cd4896c74"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0365701bc44e078682ee1224866a71897495c7ef"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af2a4426baf71163c0c354580ae98c7888a9aba7"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "65234f50a90b64b335cbb9164b8a98c2a0d031dd"
            },
            {
              "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e0652f8bb44d6294eeeac06d703185357f25d50b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.0"
            },
            {
              "version": "4.4.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.193",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.123",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.41",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}