{
  "cveId": "CVE-2026-99136",
  "url": "https://patchblox.com/security/cve/CVE-2026-99136",
  "summary": "CVE-2026-99136 is fixed in linux on 1 platform by DEBIAN-CVE-2026-99136 (version 6.12.115-2), released November 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "dm-crypt: fix a tiny race condition in crypt_dec_pending",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dm-crypt: fix a tiny race condition in crypt_dec_pending  crypt_dec_pending reads io-\u003Eerror before calling atomic_dec_and_test. Another context, for example crypt_endio called from an interrupt, may set io-\u003Eerror and drop its reference between the read and the decrement. crypt_dec_pending then drops the last reference and completes the bio with the stale status - so a read that failed and was never decrypted, or a write that failed, is reported as successful.  The read was placed before the decrement by commit b35f8caa0890 (\u0022dm crypt: wait for endio to complete before destruction\u0022), because that commit freed dm_crypt_io before calling bio_endio. This is no longer the case, dm_crypt_io lives in the per-bio data now.  Read io-\u003Eerror after atomic_dec_and_test instead. atomic_dec_and_test is fully ordered, so no additional barrier is needed.",
  "published": "2026-10-28T11:17:33Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00122,
  "epssPercentile": 0.02007,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-99136",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-99136",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99136",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}