fs/ntfs3: Fix slab-out-of-bounds in r_page

{
  "id": "12aaaf3d33c973aa5fe1f28398d12d077ddd3060be1e5023db8a4dd73e8a0c03",
  "url": "https://osv.dev/vulnerability/CVE-2022-50869",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "fs/ntfs3: Fix slab-out-of-bounds in r_page",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds in r_page When PAGE_SIZE is 64K, if read_log_page is called by log_read_rst for the first time, the size of *buffer would be equal to DefaultLogPageSize(4K).But for *buffer operations like memcpy, if the memory area size(n) which being assigned to buffer is larger than 4K (log->page_size(64K) or bytes(64K-page_off)), it will cause an out of boundary error. Call trace: [...] kasan_report+0x44/0x130 check_memory_region+0xf8/0x1a0 memcpy+0xc8/0x100 ntfs_read_run_nb+0x20c/0x460 read_log_page+0xd0/0x1f4 log_read_rst+0x110/0x75c log_replay+0x1e8/0x4aa0 ntfs_loadlog_and_replay+0x290/0x2d0 ntfs_fill_super+0x508/0xec0 get_tree_bdev+0x1fc/0x34c [...] Fix this by setting variable r_page to NULL in log_read_rst.",
    "evidence": "osv:CVE-2022-50869",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.15.87",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.17",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.3",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-50869",
      "aliases": [
        "CVE-2022-50869"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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              "type": "ECOSYSTEM",
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                  "fixed": "6.0.17"
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              "type": "ECOSYSTEM",
              "events": [
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50869.json"
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      ],
      "modified": "2026-10-28T02:30:20.886438166Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6d076293e5bffdf897ea5f975669206e09beed6a",
        "https://git.kernel.org/stable/c/bf86a640a34947d92062996e1a75b9cd9d83dd19",
        "https://git.kernel.org/stable/c/ecfbd57cf9c5ca225184ae266ce44ae473792132",
        "https://git.kernel.org/stable/c/ed686e7a26dd19ae6b46bb662f735acfa88ff7bc",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50869.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50869",
        "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/2022/50xxx/CVE-2022-50869.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50869",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487286,
  "published_at": "2025-12-30T12:15:39.879+00:00"
}