fkie_cve-2022-50074
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-11-17 19:31
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: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6500eb3a48ac221051b1791818a1ac74744ef617Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6583edbf459de2e06b9759f264c0ae27e452b97aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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          "negate": false,
          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix memleak in aa_simple_write_to_buffer()\n\nWhen copy_from_user failed, the memory is freed by kvfree. however the\nmanagement struct and data blob are allocated independently, so only\nkvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to\nfix this issue."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: apparmor: Se corrige la fuga de memoria en aa_simple_write_to_buffer(). Cuando copy_from_user falla, kvfree libera la memoria. Sin embargo, la estructura de administraci\u00f3n y el blob de datos se asignan de forma independiente, por lo que solo kvfree(data) causa un problema de fuga de memoria. Utilice aa_put_loaddata(data) para solucionar este problema."
    }
  ],
  "id": "CVE-2022-50074",
  "lastModified": "2025-11-17T19:31:52.290",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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": "2025-06-18T11:15:36.283",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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