fkie_cve-2024-36890
Vulnerability from fkie_nvd
Published
2024-05-30 16:15
Modified
2025-10-19 15:15
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: mm/slab: make __free(kfree) accept error pointers Currently, if an automatically freed allocation is an error pointer that will lead to a crash. An example of this is in wm831x_gpio_dbg_show(). 171 char *label __free(kfree) = gpiochip_dup_line_label(chip, i); 172 if (IS_ERR(label)) { 173 dev_err(wm831x->dev, "Failed to duplicate label\n"); 174 continue; 175 } The auto clean up function should check for error pointers as well, otherwise we're going to keep hitting issues like this.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79cbe0be6c0317b215ddd8bd3e32f0afdac48543Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/946771c2a2b1150f9b7286feadc3aa1e15a1eb16
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f6eb0ab4f95240589ee85fd9886a944cd3645b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac6cf3ce9b7d12acb7b528248df5f87caa25fcdcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd7eb8f83fcf258f71e293f7fc52a70be8ed0128Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/79cbe0be6c0317b215ddd8bd3e32f0afdac48543Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9f6eb0ab4f95240589ee85fd9886a944cd3645b2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ac6cf3ce9b7d12acb7b528248df5f87caa25fcdcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cd7eb8f83fcf258f71e293f7fc52a70be8ed0128Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab: make __free(kfree) accept error pointers\n\nCurrently, if an automatically freed allocation is an error pointer that\nwill lead to a crash.  An example of this is in wm831x_gpio_dbg_show().\n\n   171\tchar *label __free(kfree) = gpiochip_dup_line_label(chip, i);\n   172\tif (IS_ERR(label)) {\n   173\t\tdev_err(wm831x-\u003edev, \"Failed to duplicate label\\n\");\n   174\t\tcontinue;\n   175  }\n\nThe auto clean up function should check for error pointers as well,\notherwise we\u0027re going to keep hitting issues like this."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/slab: make __free(kfree) acepta punteros de error Actualmente, si una asignaci\u00f3n liberada autom\u00e1ticamente es un puntero de error que provocar\u00e1 un bloqueo. Un ejemplo de esto est\u00e1 en wm831x_gpio_dbg_show(). 171 caracteres *etiqueta __free(kfree) = gpiochip_dup_line_label(chip, i); 172 if (IS_ERR(etiqueta)) { 173 dev_err(wm831x-\u0026gt;dev, \"Error al duplicar la etiqueta\\n\"); 174 contin\u00faan; 175 } La funci\u00f3n de limpieza autom\u00e1tica tambi\u00e9n deber\u00eda comprobar si hay indicadores de error; de lo contrario, seguiremos teniendo problemas como este."
    }
  ],
  "id": "CVE-2024-36890",
  "lastModified": "2025-10-19T15:15:35.993",
  "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-05-30T16:15:12.493",
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      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-763"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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