proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al

{
  "id": "713733e8eb1d5620995e9fcba0f27873712613df1170f279e02aa9a79963ec49",
  "url": "https://osv.dev/vulnerability/CVE-2025-38653",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al",
    "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.",
    "evidence": "osv:CVE-2025-38653",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.148",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.102",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.42",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.10",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.16.1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-38653",
      "aliases": [
        "CVE-2025-38653"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "33c778ea0bd0fa62ff590497e72562ff90f82b13"
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                  "fixed": "fc1072d934f687e1221d685cf1a49a5068318f34"
                },
                {
                  "fixed": "d136502e04d8853a9aecb335d07bbefd7a1519a8"
                },
                {
                  "fixed": "1fccbfbae1dd36198dc47feac696563244ad81d3"
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                  "fixed": "ff7ec8dc1b646296f8d94c39339e8d3833d16c05"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38653.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.0.0"
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                  "fixed": "6.16.1"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38653.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.164311082Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1fccbfbae1dd36198dc47feac696563244ad81d3",
        "https://git.kernel.org/stable/c/33c778ea0bd0fa62ff590497e72562ff90f82b13",
        "https://git.kernel.org/stable/c/c35b0feb80b48720dfbbf4e33759c7be3faaebb6",
        "https://git.kernel.org/stable/c/d136502e04d8853a9aecb335d07bbefd7a1519a8",
        "https://git.kernel.org/stable/c/fc1072d934f687e1221d685cf1a49a5068318f34",
        "https://git.kernel.org/stable/c/ff7ec8dc1b646296f8d94c39339e8d3833d16c05",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38653.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38653",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38653.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38653",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500255,
  "published_at": "2025-08-22T16:00:57.413+00:00"
}