{
  "id": "CVE-2024-40996",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-12T13:15:20.740",
  "lastModified": "2024-08-21T16:36:14.723",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Avoid splat in pskb_pull_reason\n\nsyzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug\nhint in pskb_may_pull.\n\nWe'd like to retain this debug check because it might hint at integer\noverflows and other issues (kernel code should pull headers, not huge\nvalue).\n\nIn bpf case, this splat isn't interesting at all: such (nonsensical)\nbpf programs are typically generated by a fuzzer anyway.\n\nDo what Eric suggested and suppress such warning.\n\nFor CONFIG_DEBUG_NET=n we don't need the extra check because\npskb_may_pull will do the right thing: return an error without the\nWARN() backtrace."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: evitar splat en pskb_pull_reason compilaciones de syzkaller (CONFIG_DEBUG_NET=y) frecuentemente activa una sugerencia de depuraci\u00f3n en pskb_may_pull. Nos gustar\u00eda conservar esta verificaci\u00f3n de depuraci\u00f3n porque podr\u00eda indicar desbordamientos de enteros y otros problemas (el c\u00f3digo del kernel debe extraer encabezados, no valores enormes). En el caso de bpf, este s\u00edmbolo no es nada interesante: estos programas bpf (sin sentido) normalmente son generados por un fuzzer de todos modos. Haga lo que Eric sugiri\u00f3 y suprima esa advertencia. Para CONFIG_DEBUG_NET=n no necesitamos la verificaci\u00f3n adicional porque pskb_may_pull har\u00e1 lo correcto: devolver un error sin el rastreo WARN()."
    }
  ],
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
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