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
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)
Create a notification for this product.
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)
Create a notification for this product.
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            "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"
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                {
                  "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"
          },
          "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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