fkie_cve-2024-56745
Vulnerability from fkie_nvd
Published
2024-12-29 12:15
Modified
2025-04-17 21:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reset_method_store() memory leak In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces: while ((name = strsep(&options, " ")) != NULL) { If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup(). Fix by using a separate tmp_options to iterate with strsep() so options is preserved.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix reset_method_store() memory leak\n\nIn reset_method_store(), a string is allocated via kstrndup() and assigned\nto the local \"options\". options is then used in with strsep() to find\nspaces:\n\n  while ((name = strsep(\u0026options, \" \")) != NULL) {\n\nIf there are no remaining spaces, then options is set to NULL by strsep(),\nso the subsequent kfree(options) doesn\u0027t free the memory allocated via\nkstrndup().\n\nFix by using a separate tmp_options to iterate with strsep() so options is\npreserved."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: Corregir p\u00e9rdida de memoria de reset_method_store() En reset_method_store(), se asigna una cadena a trav\u00e9s de kstrndup() y se asigna a las \"opciones\" locales. Luego, se usa options con strsep() para buscar espacios: while ((name = strsep(\u0026amp;options, \" \")) != NULL) { Si no quedan espacios, strsep() establece options en NULL, por lo que el kfree(options) posterior no libera la memoria asignada a trav\u00e9s de kstrndup(). Se soluciona utilizando un tmp_options separado para iterar con strsep() de modo que se preserve options."
    }
  ],
  "id": "CVE-2024-56745",
  "lastModified": "2025-04-17T21:15:49.773",
  "metrics": {
    "cvssMetricV31": [
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        "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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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary"
    }
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}


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