{
  "cveId": "CVE-2024-26800",
  "url": "https://patchblox.com/security/cve/CVE-2024-26800",
  "summary": "CVE-2024-26800 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26800, released April 4, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tls: fix use-after-free on failed backlog decryption",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tls: fix use-after-free on failed backlog decryption  When the decrypt request goes to the backlog and crypto_aead_decrypt returns -EBUSY, tls_do_decryption will wait until all async decryptions have completed. If one of them fails, tls_do_decryption will return -EBADMSG and tls_decrypt_sg jumps to the error path, releasing all the pages. But the pages have been passed to the async callback, and have already been released by tls_decrypt_done.  The only true async case is when crypto_aead_decrypt returns  -EINPROGRESS. With -EBUSY, we already waited so we can tell tls_sw_recvmsg that the data is available for immediate copy, but we need to notify tls_decrypt_sg (via the new -\u003Easync_done flag) that the memory has already been released.",
  "published": "2024-04-04T09:15:09Z",
  "severity": "Important",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "cwe": "Use After Free",
  "epss": 0.00745,
  "epssPercentile": 0.55043,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26800",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.85-1",
      "fix": "DEBIAN-CVE-2024-26800",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26800",
      "released": "2024-04-04T09:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.7.9-1",
      "fix": "DEBIAN-CVE-2024-26800",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26800",
      "released": "2024-04-04T09:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.7.9-1",
      "fix": "DEBIAN-CVE-2024-26800",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26800",
      "released": "2024-04-04T09:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}