{
  "id": "CVE-2024-42072",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-29T16:15:06.693",
  "lastModified": "2024-11-21T09:33:32.037",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix may_goto with negative offset.\n\nZac's syzbot crafted a bpf prog that exposed two bugs in may_goto.\nThe 1st bug is the way may_goto is patched. When offset is negative\nit should be patched differently.\nThe 2nd bug is in the verifier:\nwhen current state may_goto_depth is equal to visited state may_goto_depth\nit means there is an actual infinite loop. It's not correct to prune\nexploration of the program at this point.\nNote, that this check doesn't limit the program to only one may_goto insn,\nsince 2nd and any further may_goto will increment may_goto_depth only\nin the queued state pushed for future exploration. The current state\nwill have may_goto_depth == 0 regardless of number of may_goto insns\nand the verifier has to explore the program until bpf_exit."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: bpf: corrige may_goto con desplazamiento negativo. El syzbot de Zac cre\u00f3 un programa bpf que expuso dos errores en may_goto. El primer error es la forma en que se parchea may_goto. Cuando el desplazamiento es negativo, se debe parchear de manera diferente. El segundo error est\u00e1 en el verificador: cuando el estado actual may_goto_ Depth es igual al estado visitado may_goto_ Depth, significa que hay un bucle infinito real. No es correcto podar la exploraci\u00f3n del programa en este momento. Tenga en cuenta que esta verificaci\u00f3n no limita el programa a solo un may_goto insn, ya que el segundo may_goto y cualquier otro may_goto incrementar\u00e1 may_goto_profundidad solo en el estado en cola enviado para exploraci\u00f3n futura. El estado actual tendr\u00e1 may_goto_ Depth == 0 independientemente del n\u00famero de may_goto insns y el verificador tiene que explorar el programa hasta bpf_exit."
    }
  ],
  "metrics": {
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
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  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      "url": "https://git.kernel.org/stable/c/175827e04f4be53f3dfb57edf12d0d49b18fd939",
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