fkie_cve-2022-49832
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-05-02 13:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task python3/2640 Call Trace: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() would return NULL pointer when kmalloc() fail to allocate. So directly return ENOMEM, if kasprintf() return NULL pointer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map\n\nHere is the BUG report by KASAN about null pointer dereference:\n\nBUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50\nRead of size 1 at addr 0000000000000000 by task python3/2640\nCall Trace:\n strcmp\n __of_find_property\n of_find_property\n pinctrl_dt_to_map\n\nkasprintf() would return NULL pointer when kmalloc() fail to allocate.\nSo directly return ENOMEM, if kasprintf() return NULL pointer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pinctrl: devicetree: correcci\u00f3n de la desreferencia de puntero nulo en pinctrl_dt_to_map Aqu\u00ed est\u00e1 el informe de ERROR de KASAN sobre la desreferencia de puntero nulo: ERROR: KASAN: null-ptr-deref en strcmp+0x2e/0x50 Lectura de tama\u00f1o 1 en la direcci\u00f3n 0000000000000000 por la tarea python3/2640 Rastreo de llamadas: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() devolver\u00eda un puntero NULL cuando kmalloc() no pudiera asignar. Por lo tanto, devuelve directamente ENOMEM, si kasprintf() devuelve un puntero NULL."
    }
  ],
  "id": "CVE-2022-49832",
  "lastModified": "2025-05-02T13:53:20.943",
  "metrics": {},
  "published": "2025-05-01T15:16:06.673",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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