{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "DEBIAN-CVE-2026-80928",
  "modified": "2026-09-14T08:47:43.868147020Z",
  "published": "2026-09-11T20:18:56.513Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-80928"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-80928"
  ]
}