{
  "cveId": "CVE-2026-72440",
  "url": "https://patchblox.com/security/cve/CVE-2026-72440",
  "summary": "CVE-2026-72440 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-72440, released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "md/raid1: fix writes_pending and barrier reference leaks on write failures",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  md/raid1: fix writes_pending and barrier reference leaks on write failures  raid1_make_request() acquires a writes_pending reference with md_write_start() before calling raid1_write_request(). Several failure paths in raid1_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped.  Make raid1_write_request() return a status indicating whether the write request was successfully queued. This allows raid1_make_request() to call md_write_end() when raid1_write_request() fails.  Additionally, if wait_blocked_rdev() fails after wait_barrier() succeeds, the associated barrier reference is not released.  Call allow_barrier() before returning from that path to keep the barrier accounting balanced.",
  "published": "2026-08-15T06:22:17Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
  "epss": 0.00498,
  "epssPercentile": 0.42987,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72440",
  "fixes": [
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      "released": "2026-11-07T00:43:02Z"
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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"
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}