fkie_cve-2022-49881
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-05-07 13:21
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix memory leak in query_regdb_file() In the function query_regdb_file() the alpha2 parameter is duplicated using kmemdup() and subsequently freed in regdb_fw_cb(). However, request_firmware_nowait() can fail without calling regdb_fw_cb() and thus leak memory.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: fix memory leak in query_regdb_file()\n\nIn the function query_regdb_file() the alpha2 parameter is duplicated\nusing kmemdup() and subsequently freed in regdb_fw_cb(). However,\nrequest_firmware_nowait() can fail without calling regdb_fw_cb() and\nthus leak memory."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: cfg80211: se corrige una fuga de memoria en query_regdb_file(). En la funci\u00f3n query_regdb_file(), el par\u00e1metro alpha2 se duplica mediante kmemdup() y posteriormente se libera en regdb_fw_cb(). Sin embargo, request_firmware_nowait() puede fallar sin llamar a regdb_fw_cb() y, por lo tanto, provocar una fuga de memoria."
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  "id": "CVE-2022-49881",
  "lastModified": "2025-05-07T13:21:11.203",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-05-01T15:16:13.077",
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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