FKIE_CVE-2025-38653

Vulnerability from fkie_nvd - Published: 2025-08-22 16:15 - Updated: 2026-06-17 09:17
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al Check pde->proc_ops->proc_lseek directly may cause UAF in rmmod scenario. It's a gap in proc_reg_open() after commit 654b33ada4ab("proc: fix UAF in proc_get_inode()"). Followed by AI Viro's suggestion, fix it in same manner.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1fccbfbae1dd36198dc47feac696563244ad81d3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/33c778ea0bd0fa62ff590497e72562ff90f82b13Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c35b0feb80b48720dfbbf4e33759c7be3faaebb6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d136502e04d8853a9aecb335d07bbefd7a1519a8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc1072d934f687e1221d685cf1a49a5068318f34Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff7ec8dc1b646296f8d94c39339e8d3833d16c05Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0
To clipboard 

{
  "affected": [
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          "product": "Linux",
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          ],
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              "status": "unaffected",
              "version": "6.16.1",
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              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nproc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al\n\nCheck pde-\u003eproc_ops-\u003eproc_lseek directly may cause UAF in rmmod scenario. \nIt\u0027s a gap in proc_reg_open() after commit 654b33ada4ab(\"proc: fix UAF in\nproc_get_inode()\").  Followed by AI Viro\u0027s suggestion, fix it in same\nmanner."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: proc: usar el mismo tratamiento para verificar proc_lseek que para proc_read_iter, etc. Verificar pde-\u0026gt;proc_ops-\u0026gt;proc_lseek directamente puede causar UAF en el escenario rmmod. Se trata de una falla en proc_reg_open() despu\u00e9s del commit 654b33ada4ab(\"proc: fix UAF in proc_get_inode()\"). Siguiendo la sugerencia de AI Viro, se debe corregir de la misma manera."
    }
  ],
  "id": "CVE-2025-38653",
  "lastModified": "2026-06-17T09:17:18.677",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-08-22T16:15:40.200",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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