FKIE_CVE-2025-38408

Vulnerability from fkie_nvd - Published: 2025-07-25 14:15 - Updated: 2026-10-15 22:18
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: genirq/irq_sim: Initialize work context pointers properly Initialize `ops` member's pointers properly by using kzalloc() instead of kmalloc() when allocating the simulation work context. Otherwise the pointers contain random content leading to invalid dereferencing.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/186df821de0f34490ed5fc0861243748b2483861Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19bd7597858dd15802c1d99fcc38e528f469080aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f73d1def72532bac4d55ea8838f457a6bed955cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c71aa4bb528ae6f8fd7577a0a39e5a03c60b04fbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec3656a8cb428d763def32bc2fa695f94be23629Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.16
linux linux_kernel 6.16
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/irq/irq_sim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "186df821de0f34490ed5fc0861243748b2483861",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "c71aa4bb528ae6f8fd7577a0a39e5a03c60b04fb",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "ec3656a8cb428d763def32bc2fa695f94be23629",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "19bd7597858dd15802c1d99fcc38e528f469080a",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "7f73d1def72532bac4d55ea8838f457a6bed955c",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/irq/irq_sim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.199",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0A1AA99A-84C5-4F7F-B9AD-5A171DA2B7A0",
              "versionEndExcluding": "6.12.37",
              "versionStartIncluding": "5.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6E0BB4E0-44BC-4645-83A8-6EA232CE624C",
              "versionEndExcluding": "6.15.6",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/irq_sim: Initialize work context pointers properly\n\nInitialize `ops` member\u0027s pointers properly by using kzalloc() instead of\nkmalloc() when allocating the simulation work context. Otherwise the\npointers contain random content leading to invalid dereferencing."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: genirq/irq_sim: Inicializar correctamente los punteros del contexto de trabajo. Inicializar correctamente los punteros del miembro `ops` usando kzalloc() en lugar de kmalloc() al asignar el contexto de trabajo de simulaci\u00f3n. De lo contrario, los punteros contienen contenido aleatorio, lo que provoca una desreferenciaci\u00f3n no v\u00e1lida."
    }
  ],
  "id": "CVE-2025-38408",
  "lastModified": "2026-10-15T22:18:40.303",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-38408",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-15T21:50:08.886538Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-07-25T14:15:32.440",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/186df821de0f34490ed5fc0861243748b2483861"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/19bd7597858dd15802c1d99fcc38e528f469080a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/7f73d1def72532bac4d55ea8838f457a6bed955c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/c71aa4bb528ae6f8fd7577a0a39e5a03c60b04fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/ec3656a8cb428d763def32bc2fa695f94be23629"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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