{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  arm64/gcs: Fix error handling in arch_set_shadow_stack_status()  alloc_gcs() returns an error-encoded pointer on failure, which comes from do_mmap(), not NULL.  The current NULL check fails to detect errors, which could lead to using an invalid GCS address.  Use IS_ERR_VALUE() to properly detect errors, consistent with the check in gcs_alloc_thread_stack().",
  "id": "DEBIAN-CVE-2026-45876",
  "modified": "2026-06-26T09:48:35.623978492Z",
  "published": "2026-05-27T14:17:01.280Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-45876"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-45876"
  ]
}