{
  "cveId": "CVE-2026-80928",
  "url": "https://patchblox.com/security/cve/CVE-2026-80928",
  "summary": "CVE-2026-80928 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-80928, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  smack: fix cred UAF in smack_file_send_sigiotask...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  smack: fix cred UAF in smack_file_send_sigiotask()  When inspecting the credentials of another task, objective credentials (-\u003Ereal_cred, accessed with __task_cred()) must always be used.  Accessing -\u003Ecred on a non-current task is forbidden unless that task is being created or destroyed; a task is allowed to change its own -\u003Ecred pointer with no synchronization, and changing -\u003Ecred should only affect the current syscall.  smack_file_send_sigiotask() was accessing both sets of credentials: First tsk-\u003Ecred, then __task_cred(tsk).  Fix it, always access the objective credentials here.  I have tested that this bug can lead to a KASAN-reported UAF of struct cred in smack_file_send_sigiotask(), and that this fix prevents the race.",
  "published": "2026-09-11T20:18:56Z",
  "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": 0.00129,
  "epssPercentile": 0.02595,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2026-80928",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80928",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.111-1",
      "fix": "DEBIAN-CVE-2026-80928",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80928",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-80928",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80928",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.111-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-80928",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80928",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}