CVE-2026-43196

Estado: AnalizadaAlta (7.8)—

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

soc: ti: pruss: Fix double free in pruss_clk_mux_setup()

In the pruss_clk_mux_setup(), the devm_add_action_or_reset() indirectly calls pruss_of_free_clk_provider(), which calls of_node_put(clk_mux_np) on the error path. However, after the devm_add_action_or_reset() returns, the of_node_put(clk_mux_np) is called again, causing a double free.

Fix by returning directly, to avoid the duplicate of_node_put().

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.18%
Percentil entre todas las CVEs puntuadas: 7
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1059 Command and Scripting Interpreterexecution75 %

Vulnerabilidad de doble liberación (CWE-415) en kernel Linux con acceso local sin interacción (AV:L/PR:L/UI:N). Permite escalada de privilegios y ejecución de código arbitrario con permisos elevados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-415

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-43196",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "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
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "dbda01bf2dfe5af33163e1e5fca1b82b619c2803",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "24c40076e3bc3d73c839c886d6bda1da6c4d9b93",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "818cf66d91c8ef09b01664a12d5f4ea786d64396",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "e113339cc7d23be4948891f3a702e9dce5b47035",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "69aa67c1e22d13e9aad4b08c86304ad8e743dcab",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "b7db9953c2f8da37de498198623b05b46f8e2ca0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "04dbbb18cc9c8795c9ff47d8994bc03ebfef9d68",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ba59c9b43c86b2c2396acac94e41d946cbaec9fe",
              "lessThan": "80db65d4acfb9ff12d00172aed39ea8b98261aad",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/soc/ti/pruss.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/soc/ti/pruss.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-05-06T12:16:38.607",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/04dbbb18cc9c8795c9ff47d8994bc03ebfef9d68",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/24c40076e3bc3d73c839c886d6bda1da6c4d9b93",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/69aa67c1e22d13e9aad4b08c86304ad8e743dcab",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/80db65d4acfb9ff12d00172aed39ea8b98261aad",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/818cf66d91c8ef09b01664a12d5f4ea786d64396",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b7db9953c2f8da37de498198623b05b46f8e2ca0",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dbda01bf2dfe5af33163e1e5fca1b82b619c2803",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e113339cc7d23be4948891f3a702e9dce5b47035",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: ti: pruss: Fix double free in pruss_clk_mux_setup()\n\nIn the pruss_clk_mux_setup(), the devm_add_action_or_reset() indirectly\ncalls pruss_of_free_clk_provider(), which calls of_node_put(clk_mux_np)\non the error path. However, after the devm_add_action_or_reset()\nreturns, the of_node_put(clk_mux_np) is called again, causing a double\nfree.\n\nFix by returning directly, to avoid the duplicate of_node_put()."
    }
  ],
  "lastModified": "2026-06-17T10:49:08.017",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FB2C2DAE-FC61-4054-BF05-406CAE1F7C71",
              "versionEndExcluding": "5.10.252",
              "versionStartIncluding": "5.10"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671",
              "versionEndExcluding": "5.15.202",
              "versionStartIncluding": "5.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654",
              "versionEndExcluding": "6.1.165",
              "versionStartIncluding": "5.16"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2",
              "versionEndExcluding": "6.6.128",
              "versionStartIncluding": "6.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2",
              "versionEndExcluding": "6.12.75",
              "versionStartIncluding": "6.7"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B",
              "versionEndExcluding": "6.18.16",
              "versionStartIncluding": "6.13"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67",
              "versionEndExcluding": "6.19.6",
              "versionStartIncluding": "6.19"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}