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CVE-2024-50165

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

bpf: Preserve param->string when parsing mount options

In bpf_parse_param(), keep the value of param->string intact so it can be freed later. Otherwise, the kmalloc area pointed to by param->string will be leaked as shown below:

Detalles técnicos trazas, registros y código del informe original
unreferenced object 0xffff888118c46d20 (size 8):
  comm "new_name", pid 12109, jiffies 4295580214
  hex dump (first 8 bytes):
    61 6e 79 00 38 c9 5c 7e                          any.8.\~
  backtrace (crc e1b7f876):
    [<00000000c6848ac7>] kmemleak_alloc+0x4b/0x80
    [<00000000de9f7d00>] __kmalloc_node_track_caller_noprof+0x36e/0x4a0
    [<000000003e29b886>] memdup_user+0x32/0xa0
    [<0000000007248326>] strndup_user+0x46/0x60
    [<0000000035b3dd29>] __x64_sys_fsconfig+0x368/0x3d0
    [<0000000018657927>] x64_sys_call+0xff/0x9f0
    [<00000000c0cabc95>] do_syscall_64+0x3b/0xc0
    [<000000002f331597>] entry_SYSCALL_64_after_hwframe+0x4b/0x53

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2024-50165",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-50165",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-01T20:20:04.347964Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
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          "version": "3.1",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
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        "cvssData": {
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          "integrityImpact": "NONE",
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "NONE"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "product": "Linux",
          "versions": [
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              "lessThan": "5d7a0a426540319327309035509cb768a2f5c2c4",
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              "versionType": "git"
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          ],
          "programFiles": [
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          ],
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          "vendor": "Linux",
          "product": "Linux",
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              "version": "6.9"
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            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.9",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "kernel/bpf/inode.c"
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          "defaultStatus": "affected"
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      ]
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  "published": "2024-11-07T10:15:07.770",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1f97c03f43fadc407de5b5cb01c07755053e1c22",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-401"
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      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Preserve param->string when parsing mount options\n\nIn bpf_parse_param(), keep the value of param->string intact so it can\nbe freed later. Otherwise, the kmalloc area pointed to by param->string\nwill be leaked as shown below:\n\nunreferenced object 0xffff888118c46d20 (size 8):\n  comm \"new_name\", pid 12109, jiffies 4295580214\n  hex dump (first 8 bytes):\n    61 6e 79 00 38 c9 5c 7e                          any.8.\\~\n  backtrace (crc e1b7f876):\n    [<00000000c6848ac7>] kmemleak_alloc+0x4b/0x80\n    [<00000000de9f7d00>] __kmalloc_node_track_caller_noprof+0x36e/0x4a0\n    [<000000003e29b886>] memdup_user+0x32/0xa0\n    [<0000000007248326>] strndup_user+0x46/0x60\n    [<0000000035b3dd29>] __x64_sys_fsconfig+0x368/0x3d0\n    [<0000000018657927>] x64_sys_call+0xff/0x9f0\n    [<00000000c0cabc95>] do_syscall_64+0x3b/0xc0\n    [<000000002f331597>] entry_SYSCALL_64_after_hwframe+0x4b/0x53"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: preservar param-&gt;string al analizar las opciones de montaje. En bpf_parse_param(), mantenga intacto el valor de param-&gt;string para que pueda liberarse más tarde. De lo contrario, el área kmalloc a la que apunta param-&gt;string se filtrará como se muestra a continuación: objeto sin referencia 0xffff888118c46d20 (tamaño 8): comm \"new_name\", pid 12109, jiffies 4295580214 volcado hexadecimal (primeros 8 bytes): 61 6e 79 00 38 c9 5c 7e any.8.\\~ backtrace (crc e1b7f876): [&lt;00000000c6848ac7&gt;] kmemleak_alloc+0x4b/0x80 [&lt;00000000de9f7d00&gt;] __kmalloc_node_track_caller_noprof+0x36e/0x4a0 [&lt;000000003e29b886&gt;] memdup_user+0x32/0xa0 [&lt;0000000007248326&gt;] strndup_user+0x46/0x60 [&lt;0000000035b3dd29&gt;] __x64_sys_fsconfig+0x368/0x3d0 [&lt;0000000018657927&gt;] x64_sys_call+0xff/0x9f0 [&lt;00000000c0cabc95&gt;] do_syscall_64+0x3b/0xc0 [&lt;000000002f331597&gt;] entrada_SYSCALL_64_after_hwframe+0x4b/0x53"
    }
  ],
  "lastModified": "2026-08-04T11:21:27.853",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2132686D-AA83-479C-98CA-4B9F24436525",
              "versionEndExcluding": "6.11.6",
              "versionStartIncluding": "6.9"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"
            },
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              "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"
            },
            {
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              "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED"
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}