CVE-2022-49821 (GCVE-0-2022-49821)
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: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd
Impacted products
Vendor Product Version
Linux Linux Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
Version: 1fa5ae857bb14f6046205171d98506d8112dd74e
 Create a notification for this product.
   Linux Linux Version: 2.6.30
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/isdn/mISDN/dsp_pipeline.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bbd53d05c4c892080ef3b617eff4f57903acecb9",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "b119bedbefb7dd9ed8bf8cb9f1056504250d610e",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "727ed7d28348c026c7ef4d852f3d0e5054d376e8",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "0f2c681900a01e3f23789bca26d88268c3d5b51d",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "7a05e3929668c8cfef495c69752a9e91fac4878f",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "d4b8394725079670be309f9a35ad88a8cbbaaefd",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            },
            {
              "lessThan": "98a2ac1ca8fd6eca6867726fe238d06e75eb1acd",
              "status": "affected",
              "version": "1fa5ae857bb14f6046205171d98506d8112dd74e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/isdn/mISDN/dsp_pipeline.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.30"
            },
            {
              "lessThan": "2.6.30",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.334",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.300",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.267",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.334",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.300",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.267",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.225",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.156",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.80",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.10",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "2.6.30",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmISDN: fix possible memory leak in mISDN_dsp_element_register()\n\nAfer commit 1fa5ae857bb1 (\"driver core: get rid of struct device\u0027s\nbus_id string array\"), the name of device is allocated dynamically,\nuse put_device() to give up the reference, so that the name can be\nfreed in kobject_cleanup() when the refcount is 0.\n\nThe \u0027entry\u0027 is going to be freed in mISDN_dsp_dev_release(), so the\nkfree() is removed. list_del() is called in mISDN_dsp_dev_release(),\nso it need be initialized."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:46:03.507Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9"
        },
        {
          "url": "https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e"
        },
        {
          "url": "https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d"
        },
        {
          "url": "https://git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47"
        },
        {
          "url": "https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd"
        },
        {
          "url": "https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd"
        }
      ],
      "title": "mISDN: fix possible memory leak in mISDN_dsp_element_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49821",
    "datePublished": "2025-05-01T14:09:42.901Z",
    "dateReserved": "2025-05-01T14:05:17.227Z",
    "dateUpdated": "2025-05-04T08:46:03.507Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49821\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:05.513\",\"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\\nmISDN: fix possible memory leak in mISDN_dsp_element_register()\\n\\nAfer commit 1fa5ae857bb1 (\\\"driver core: get rid of struct device\u0027s\\nbus_id string array\\\"), the name of device is allocated dynamically,\\nuse put_device() to give up the reference, so that the name can be\\nfreed in kobject_cleanup() when the refcount is 0.\\n\\nThe \u0027entry\u0027 is going to be freed in mISDN_dsp_dev_release(), so the\\nkfree() is removed. list_del() is called in mISDN_dsp_dev_release(),\\nso it need be initialized.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mISDN: corrige posible p\u00e9rdida de memoria en mISDN_dsp_element_register() Despu\u00e9s de la confirmaci\u00f3n 1fa5ae857bb1 (\\\"n\u00facleo del controlador: deshacerse de la matriz de cadenas bus_id del dispositivo struct\\\"), el nombre del dispositivo se asigna din\u00e1micamente, use put_device() para renunciar a la referencia, de modo que el nombre se pueda liberar en kobject_cleanup() cuando refcount sea 0. La \u0027entrada\u0027 se liberar\u00e1 en mISDN_dsp_dev_release(), por lo que se elimina kfree(). list_del() se llama en mISDN_dsp_dev_release(), por lo que necesita inicializarse.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.