nvd-json-data-feeds/CVE-2021/CVE-2021-471xx/CVE-2021-47180.json

{
  "id": "CVE-2021-47180",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-03-25T10:15:09.363",
  "lastModified": "2024-03-25T13:47:14.087",
  "vulnStatus": "Awaiting Analysis",
  "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    [<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"
    },
    {
      "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: [&lt;000000004bc25d43&gt;] kmalloc include/linux/slab.h:552 [en l\u00ednea] [&lt;000000004bc25d43&gt;] kzalloc include/linux/slab.h:682 [en l\u00ednea] [&lt;000000004bc25d43&gt;] nci_hci_allocate+0x21/ 0xd0 net/nfc/nci/hci.c:784 [&lt;00000000c59cff92&gt;] nci_allocate_device net/nfc/nci/core.c:1170 [en l\u00ednea] [&lt;00000000c59cff92&gt;] nci_allocate_device+0x10b/0x160 net/nfc/nci/core. c:1132 [&lt;00000000006e0a8e&gt;] nfcmrvl_nci_register_dev+0x10a/0x1c0 controladores/nfc/nfcmrvl/main.c:153 [&lt;000000004da1b57e&gt;] nfcmrvl_probe+0x223/0x290 controladores/nfc/nfcmr vl/usb.c:345 [&lt;00000000d506aed9&gt;] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [&lt;00000000bc632c92&gt;] very_probe+0x159/0x4a0 drivers/base/dd.c:554 [&lt;00000000f5009125&gt;] driver_probe_device+0x84/0x100 drivers/base/dd .c:740 [&lt;000000000ce658ca&gt;] __device_attach_driver+0xee/0x110 controladores/base/dd.c:846 [&lt;000000007067d05f&gt;] bus_for_each_drv+0xb7/0x100 controladores/base/bus.c:431 [&lt;00000000f8e1337 2&gt;] __device_attach+0x122 /0x250 controladores/base/dd.c:914 [&lt;000000009cf68860&gt;] bus_probe_device+0xc6/0xe0 controladores/base/bus.c:491 [&lt;00000000359c965a&gt;] dispositivo_add+0x5be/0xc30 controladores/base/core.c:3109 [ &lt;00000000086e4bd3&gt;] usb_set_configuration+0x9d9/0xb90 controladores/usb/core/message.c:2164 [&lt;00000000ca036872&gt;] usb_generic_driver_probe+0x8c/0xc0 controladores/usb/core/generic.c:238 [&lt;00000000d40d3 6f6&gt;] dispositivo_probe_usb+0x5c/ 0x140 controladores/usb/core/driver.c:293 [&lt;00000000bc632c92&gt;] very_probe+0x159/0x4a0 controladores/base/dd.c:554"
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}