{
  "cveId": "CVE-2026-72470",
  "url": "https://patchblox.com/security/cve/CVE-2026-72470",
  "summary": "CVE-2026-72470 is fixed in 38 products on 1 platform, first by DEBIAN-CVE-2026-72470, released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: resize log-\u003Eone_page_buf when adopting...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: resize log-\u003Eone_page_buf when adopting on-disk page size  log_replay() allocates log-\u003Eone_page_buf using the page size that was chosen from the host PAGE_SIZE:  \tlog-\u003Eone_page_buf = kmalloc(log-\u003Epage_size, GFP_NOFS);  Later, when a restart area is found, the log page size recorded on disk is adopted:  \tt32 = le32_to_cpu(log-\u003Erst_info.r_page-\u003Esys_page_size); \tif (log-\u003Epage_size != t32) { \t\tlog-\u003El_size = log-\u003Eorig_file_size; \t\tlog-\u003Epage_size = norm_file_page(t32, \u0026log-\u003El_size, \t\t\t\t\t\tt32 == DefaultLogPageSize); \t}  If the on-disk page size is larger than the size used for the initial allocation, log-\u003Epage_size grows but one_page_buf is left at its original, smaller size. A subsequent unaligned read_log_page() then reads log-\u003Epage_size bytes into the undersized scratch buffer:  \tpage_buf = page_off ? log-\u003Eone_page_buf : *buffer; \terr = ntfs_read_run_nb_ra(ni-\u003Emi.sbi, \u0026ni-\u003Efile.run, page_vbo, page_buf, \t\t\t\t  log-\u003Epage_size, NULL, \u0026log-\u003Eread_ahead);  overflowing the allocation. This is reachable when mounting a dirty NTFS volume whose log was formatted with a page size larger than the buffer initially allocated on the mounting host (for example a 64K-log volume mounted on a host that allocated a 4K scratch buffer).  Grow one_page_buf when the adopted on-disk page size exceeds the size used for the initial allocation. On krealloc() failure the original buffer is left intact and freed by the existing error path.",
  "published": "2026-08-15T06:22:21Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00176,
  "epssPercentile": 0.07117,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "fix": "ALAS2023-2026-2071",
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}