CVE-2022-49832 (GCVE-0-2022-49832)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:46
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
Linux Linux Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
Version: 57291ce295c0aca738dd284c4a9c591c09ebee71
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   Linux Linux Version: 3.5
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{
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/devicetree.c"
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      "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."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:46:28.117Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49832",
    "datePublished": "2025-05-01T14:09:50.435Z",
    "dateReserved": "2025-05-01T14:05:17.228Z",
    "dateUpdated": "2025-05-04T08:46:28.117Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49832\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:06.673\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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