{
  "cveId": "CVE-2026-64062",
  "url": "https://patchblox.com/security/cve/CVE-2026-64062",
  "summary": "CVE-2026-64062 is fixed in 51 products on 1 platform, first by ALAS2023-2026-1894, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netfs: Fix potential deadlock in write-through m...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netfs: Fix potential deadlock in write-through mode  Fix netfs_advance_writethrough() to always unlock the supplied folio and to mark it dirty if it isn\u0027t yet written to the end.  Unfortunately, it can\u0027t be marked for writeback until the folio is done with as that may cause a deadlock against mmapped reads and writes.  Even though it has been marked dirty, premature writeback can\u0027t occur as the caller is holding both inode-\u003Ei_rwsem (which will prevent concurrent truncation, fallocation, DIO and other writes) and ictx-\u003Ewb_lock (which will cause flushing to wait and writeback to skip or wait).  Note that this may be easier to deal with once the queuing of folios is split from the generation of subrequests.",
  "published": "2026-06-22T09:00:00Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00094,
  "epssPercentile": 0.00584,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}