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CVE-2021-47180 (GCVE-0-2021-47180)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:16 – Updated: 2026-05-11 13:49
VLAI
Title
NFC: nci: fix memory leak in nci_allocate_device
Summary
In the Linux kernel, the following vulnerability has been resolved: NFC: nci: fix memory leak in nci_allocate_device nfcmrvl_disconnect fails to free the hci_dev field in struct nci_dev. Fix this by freeing hci_dev in nci_free_device. BUG: memory leak unreferenced object 0xffff888111ea6800 (size 1024): comm "kworker/1:0", pid 19, jiffies 4294942308 (age 13.580s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff .........`...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000004bc25d43>] kmalloc include/linux/slab.h:552 [inline] [<000000004bc25d43>] kzalloc include/linux/slab.h:682 [inline] [<000000004bc25d43>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784 [<00000000c59cff92>] nci_allocate_device net/nfc/nci/core.c:1170 [inline] [<00000000c59cff92>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132 [<00000000006e0a8e>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153 [<000000004da1b57e>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345 [<00000000d506aed9>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554 [<00000000f5009125>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740 [<000000000ce658ca>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846 [<000000007067d05f>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000f8e13372>] __device_attach+0x122/0x250 drivers/base/dd.c:914 [<000000009cf68860>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000359c965a>] device_add+0x5be/0xc30 drivers/base/core.c:3109 [<00000000086e4bd3>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<00000000ca036872>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000d40d36f6>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-25 13:48 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 448a1cb12977f52142e6feb12022c59662d88dc1 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 4a621621c7af3cec21c47c349b30cd9c3cea11c8 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 0365701bc44e078682ee1224866a71897495c7ef (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < af2a4426baf71163c0c354580ae98c7888a9aba7 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < b34cb7ac32cc8e5471dc773180ea9ae676b1a745 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 65234f50a90b64b335cbb9164b8a98c2a0d031dd (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < e0652f8bb44d6294eeeac06d703185357f25d50b (git)
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Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 4.4.271 , ≤ 4.4.* (semver)
Unaffected: 4.9.271 , ≤ 4.9.* (semver)
Unaffected: 4.14.235 , ≤ 4.14.* (semver)
Unaffected: 4.19.193 , ≤ 4.19.* (semver)
Unaffected: 5.4.123 , ≤ 5.4.* (semver)
Unaffected: 5.10.41 , ≤ 5.10.* (semver)
Unaffected: 5.12.8 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "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    [\u003c000000004bc25d43\u003e] kmalloc include/linux/slab.h:552 [inline]\n    [\u003c000000004bc25d43\u003e] kzalloc include/linux/slab.h:682 [inline]\n    [\u003c000000004bc25d43\u003e] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784\n    [\u003c00000000c59cff92\u003e] nci_allocate_device net/nfc/nci/core.c:1170 [inline]\n    [\u003c00000000c59cff92\u003e] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132\n    [\u003c00000000006e0a8e\u003e] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153\n    [\u003c000000004da1b57e\u003e] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345\n    [\u003c00000000d506aed9\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554\n    [\u003c00000000f5009125\u003e] driver_probe_device+0x84/0x100 drivers/base/dd.c:740\n    [\u003c000000000ce658ca\u003e] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846\n    [\u003c000000007067d05f\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431\n    [\u003c00000000f8e13372\u003e] __device_attach+0x122/0x250 drivers/base/dd.c:914\n    [\u003c000000009cf68860\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491\n    [\u003c00000000359c965a\u003e] device_add+0x5be/0xc30 drivers/base/core.c:3109\n    [\u003c00000000086e4bd3\u003e] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164\n    [\u003c00000000ca036872\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\n    [\u003c00000000d40d36f6\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554"
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: NFC: nci: corrige la p\u00e9rdida de memoria en nci_allocate_device nfcmrvl_disconnect no logra liberar el campo hci_dev en la estructura nci_dev. Solucione este problema liberando hci_dev en nci_free_device. ERROR: p\u00e9rdida de memoria, objeto sin referencia 0xffff888111ea6800 (tama\u00f1o 1024): comunicaci\u00f3n \"kworker/1:0\", pid 19, jiffies 4294942308 (edad 13.580 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff .........`...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ............. ... seguimiento: [\u0026lt;000000004bc25d43\u0026gt;] kmalloc include/linux/slab.h:552 [en l\u00ednea] [\u0026lt;000000004bc25d43\u0026gt;] kzalloc include/linux/slab.h:682 [en l\u00ednea] [\u0026lt;000000004bc25d43\u0026gt;] nci_hci_allocate+0x21/ 0xd0 net/nfc/nci/hci.c:784 [\u0026lt;00000000c59cff92\u0026gt;] nci_allocate_device net/nfc/nci/core.c:1170 [en l\u00ednea] [\u0026lt;00000000c59cff92\u0026gt;] nci_allocate_device+0x10b/0x160 net/nfc/nci/core. c:1132 [\u0026lt;00000000006e0a8e\u0026gt;] nfcmrvl_nci_register_dev+0x10a/0x1c0 controladores/nfc/nfcmrvl/main.c:153 [\u0026lt;000000004da1b57e\u0026gt;] nfcmrvl_probe+0x223/0x290 controladores/nfc/nfcmr vl/usb.c:345 [\u0026lt;00000000d506aed9\u0026gt;] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [\u0026lt;00000000bc632c92\u0026gt;] very_probe+0x159/0x4a0 drivers/base/dd.c:554 [\u0026lt;00000000f5009125\u0026gt;] driver_probe_device+0x84/0x100 drivers/base/dd .c:740 [\u0026lt;000000000ce658ca\u0026gt;] __device_attach_driver+0xee/0x110 controladores/base/dd.c:846 [\u0026lt;000000007067d05f\u0026gt;] bus_for_each_drv+0xb7/0x100 controladores/base/bus.c:431 [\u0026lt;00000000f8e1337 2\u0026gt;] __device_attach+0x122 /0x250 controladores/base/dd.c:914 [\u0026lt;000000009cf68860\u0026gt;] bus_probe_device+0xc6/0xe0 controladores/base/bus.c:491 [\u0026lt;00000000359c965a\u0026gt;] dispositivo_add+0x5be/0xc30 controladores/base/core.c:3109 [ \u0026lt;00000000086e4bd3\u0026gt;] usb_set_configuration+0x9d9/0xb90 controladores/usb/core/message.c:2164 [\u0026lt;00000000ca036872\u0026gt;] usb_generic_driver_probe+0x8c/0xc0 controladores/usb/core/generic.c:238 [\u0026lt;00000000d40d3 6f6\u0026gt;] dispositivo_probe_usb+0x5c/ 0x140 controladores/usb/core/driver.c:293 [\u0026lt;00000000bc632c92\u0026gt;] very_probe+0x159/0x4a0 controladores/base/dd.c:554"
        }
      ],
      "id": "CVE-2021-47180",
      "lastModified": "2025-01-07T17:17:24.333",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2024-03-25T10:15:09.363",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-401"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "include/net/nfc/nci_core.h",
                  "net/nfc/nci/core.c",
                  "net/nfc/nci/hci.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "448a1cb12977f52142e6feb12022c59662d88dc1",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4a621621c7af3cec21c47c349b30cd9c3cea11c8",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2c2fb2df46ea866b49fea5ec7112ec3cd4896c74",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0365701bc44e078682ee1224866a71897495c7ef",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "af2a4426baf71163c0c354580ae98c7888a9aba7",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b34cb7ac32cc8e5471dc773180ea9ae676b1a745",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "65234f50a90b64b335cbb9164b8a98c2a0d031dd",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e0652f8bb44d6294eeeac06d703185357f25d50b",
                    "status": "affected",
                    "version": "11f54f228643d0248ec00ce8c9fb8d872f87e7b8",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "include/net/nfc/nci_core.h",
                  "net/nfc/nci/core.c",
                  "net/nfc/nci/hci.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.0"
                  },
                  {
                    "lessThan": "4.0",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.4.*",
                    "status": "unaffected",
                    "version": "4.4.271",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.9.*",
                    "status": "unaffected",
                    "version": "4.9.271",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.14.*",
                    "status": "unaffected",
                    "version": "4.14.235",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.193",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.123",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.41",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.12.*",
                    "status": "unaffected",
                    "version": "5.12.8",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "5.13",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2DB78FDC-C9EA-4ACD-A898-A03A3597EEDF",
                    "versionEndExcluding": "4.4.271",
                    "versionStartIncluding": "4.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B",
                    "versionEndExcluding": "4.9.271",
                    "versionStartIncluding": "4.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "03A23445-0C1A-42AB-AC5C-768360DDF32C",
                    "versionEndExcluding": "4.14.235",
                    "versionStartIncluding": "4.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D",
                    "versionEndExcluding": "4.19.193",
                    "versionStartIncluding": "4.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E155FDCC-159C-4B41-A583-2A3E1FD04585",
                    "versionEndExcluding": "5.4.123",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "19259C31-3EC0-4F2C-BC92-B844E9D1BE5E",
                    "versionEndExcluding": "5.10.41",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2F14396C-5D81-4DCA-BF2C-B00F1CB73DDD",
                    "versionEndExcluding": "5.12.8",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "DA610E30-717C-4700-9F77-A3C9244F3BFD",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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    [\u003c000000004bc25d43\u003e] kmalloc include/linux/slab.h:552 [inline]\n    [\u003c000000004bc25d43\u003e] kzalloc include/linux/slab.h:682 [inline]\n    [\u003c000000004bc25d43\u003e] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784\n    [\u003c00000000c59cff92\u003e] nci_allocate_device net/nfc/nci/core.c:1170 [inline]\n    [\u003c00000000c59cff92\u003e] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132\n    [\u003c00000000006e0a8e\u003e] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153\n    [\u003c000000004da1b57e\u003e] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345\n    [\u003c00000000d506aed9\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554\n    [\u003c00000000f5009125\u003e] driver_probe_device+0x84/0x100 drivers/base/dd.c:740\n    [\u003c000000000ce658ca\u003e] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846\n    [\u003c000000007067d05f\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431\n    [\u003c00000000f8e13372\u003e] __device_attach+0x122/0x250 drivers/base/dd.c:914\n    [\u003c000000009cf68860\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491\n    [\u003c00000000359c965a\u003e] device_add+0x5be/0xc30 drivers/base/core.c:3109\n    [\u003c00000000086e4bd3\u003e] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164\n    [\u003c00000000ca036872\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\n    [\u003c00000000d40d36f6\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: NFC: nci: corrige la p\u00e9rdida de memoria en nci_allocate_device nfcmrvl_disconnect no logra liberar el campo hci_dev en la estructura nci_dev. Solucione este problema liberando hci_dev en nci_free_device. ERROR: p\u00e9rdida de memoria, objeto sin referencia 0xffff888111ea6800 (tama\u00f1o 1024): comunicaci\u00f3n \"kworker/1:0\", pid 19, jiffies 4294942308 (edad 13.580 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff .........`...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ............. ... seguimiento: [\u0026lt;000000004bc25d43\u0026gt;] kmalloc include/linux/slab.h:552 [en l\u00ednea] [\u0026lt;000000004bc25d43\u0026gt;] kzalloc include/linux/slab.h:682 [en l\u00ednea] [\u0026lt;000000004bc25d43\u0026gt;] nci_hci_allocate+0x21/ 0xd0 net/nfc/nci/hci.c:784 [\u0026lt;00000000c59cff92\u0026gt;] nci_allocate_device net/nfc/nci/core.c:1170 [en l\u00ednea] [\u0026lt;00000000c59cff92\u0026gt;] nci_allocate_device+0x10b/0x160 net/nfc/nci/core. c:1132 [\u0026lt;00000000006e0a8e\u0026gt;] nfcmrvl_nci_register_dev+0x10a/0x1c0 controladores/nfc/nfcmrvl/main.c:153 [\u0026lt;000000004da1b57e\u0026gt;] nfcmrvl_probe+0x223/0x290 controladores/nfc/nfcmr vl/usb.c:345 [\u0026lt;00000000d506aed9\u0026gt;] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [\u0026lt;00000000bc632c92\u0026gt;] very_probe+0x159/0x4a0 drivers/base/dd.c:554 [\u0026lt;00000000f5009125\u0026gt;] driver_probe_device+0x84/0x100 drivers/base/dd .c:740 [\u0026lt;000000000ce658ca\u0026gt;] __device_attach_driver+0xee/0x110 controladores/base/dd.c:846 [\u0026lt;000000007067d05f\u0026gt;] bus_for_each_drv+0xb7/0x100 controladores/base/bus.c:431 [\u0026lt;00000000f8e1337 2\u0026gt;] __device_attach+0x122 /0x250 controladores/base/dd.c:914 [\u0026lt;000000009cf68860\u0026gt;] bus_probe_device+0xc6/0xe0 controladores/base/bus.c:491 [\u0026lt;00000000359c965a\u0026gt;] dispositivo_add+0x5be/0xc30 controladores/base/core.c:3109 [ \u0026lt;00000000086e4bd3\u0026gt;] usb_set_configuration+0x9d9/0xb90 controladores/usb/core/message.c:2164 [\u0026lt;00000000ca036872\u0026gt;] usb_generic_driver_probe+0x8c/0xc0 controladores/usb/core/generic.c:238 [\u0026lt;00000000d40d3 6f6\u0026gt;] dispositivo_probe_usb+0x5c/ 0x140 controladores/usb/core/driver.c:293 [\u0026lt;00000000bc632c92\u0026gt;] very_probe+0x159/0x4a0 controladores/base/dd.c:554"
          }
        ],
        "id": "CVE-2021-47180",
        "lastModified": "2026-06-17T04:16:50.893",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
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          ],
          "ssvcV203": [
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              "ssvcData": {
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                  },
                  {
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-25T13:48:55.834173Z",
                "version": "2.0.3"
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        "published": "2024-03-25T10:15:09.363",
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          },
          {
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            ],
            "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef"
          },
          {
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          },
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          },
          {
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            ],
            "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:07:08+00:00",
      "cve": "CVE-2021-47180",
      "id": "CVE-2021-47180",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: NFC: nci: fix memory leak in nci_allocate_device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47180.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:59:16Z",
      "cve": "CVE-2021-47180",
      "id": "CVE-2021-47180",
      "initial_release_date": "2024-03-27T04:25:56Z",
      "product_status:known_affected": "529",
      "product_status:known_not_affected": "206",
      "product_status:recommended": "221",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47180",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47180.json",
      "version": "55"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T05:32:07.250Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
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                "url": "https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7"
              },
              {
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                "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
              },
              {
                "tags": [
                  "x_transferred"
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                "url": "https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd"
              },
              {
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                ],
                "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-47180",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-03-25T13:48:55.834173Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-05-23T19:01:19.327Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "include/net/nfc/nci_core.h",
                "net/nfc/nci/core.c",
                "net/nfc/nci/hci.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "448a1cb12977",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "4a621621c7af",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "2c2fb2df46ea",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "0365701bc44e",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "af2a4426baf7",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "b34cb7ac32cc",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "65234f50a90b",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                },
                {
                  "lessThan": "e0652f8bb44d",
                  "status": "affected",
                  "version": "11f54f228643",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "include/net/nfc/nci_core.h",
                "net/nfc/nci/core.c",
                "net/nfc/nci/hci.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.0"
                },
                {
                  "lessThan": "4.0",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.4.*",
                  "status": "unaffected",
                  "version": "4.4.271",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.271",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.235",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.193",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.123",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.41",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.12.*",
                  "status": "unaffected",
                  "version": "5.12.8",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.13",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "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    [\u003c000000004bc25d43\u003e] kmalloc include/linux/slab.h:552 [inline]\n    [\u003c000000004bc25d43\u003e] kzalloc include/linux/slab.h:682 [inline]\n    [\u003c000000004bc25d43\u003e] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784\n    [\u003c00000000c59cff92\u003e] nci_allocate_device net/nfc/nci/core.c:1170 [inline]\n    [\u003c00000000c59cff92\u003e] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132\n    [\u003c00000000006e0a8e\u003e] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153\n    [\u003c000000004da1b57e\u003e] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345\n    [\u003c00000000d506aed9\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554\n    [\u003c00000000f5009125\u003e] driver_probe_device+0x84/0x100 drivers/base/dd.c:740\n    [\u003c000000000ce658ca\u003e] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846\n    [\u003c000000007067d05f\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431\n    [\u003c00000000f8e13372\u003e] __device_attach+0x122/0x250 drivers/base/dd.c:914\n    [\u003c000000009cf68860\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491\n    [\u003c00000000359c965a\u003e] device_add+0x5be/0xc30 drivers/base/core.c:3109\n    [\u003c00000000086e4bd3\u003e] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164\n    [\u003c00000000ca036872\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\n    [\u003c00000000d40d36f6\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-11-04T11:36:18.143Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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          "references": [
            {
              "url": "https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1"
            },
            {
              "url": "https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8"
            },
            {
              "url": "https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74"
            },
            {
              "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef"
            },
            {
              "url": "https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7"
            },
            {
              "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745"
            },
            {
              "url": "https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd"
            },
            {
              "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b"
            }
          ],
          "title": "NFC: nci: fix memory leak in nci_allocate_device",
          "x_generator": {
            "engine": "bippy-c8e10e5f6187"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47180",
        "datePublished": "2024-03-25T09:16:29.580Z",
        "dateReserved": "2024-03-25T09:12:14.112Z",
        "dateUpdated": "2024-11-04T11:36:18.143Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.