{
  "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:  lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()  Patch series \"lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()\", v2.  This series fixes an off-by-one out-of-bounds read in ucs2_strnlen().  The first patch is the real fix, the second patch comes as a bonus and fixes the code indentation.   This patch (of 2):  ucs2_strnlen() checks the current character before checking whether the caller-provided maximum length has been reached.  If the input is not NUL-terminated within that bound, the loop can read one ucs2_char_t past the limit.  Test the length before dereferencing to prevent an off-by-one out-of-bounds read.",
  "id": "DEBIAN-CVE-2026-89726",
  "modified": "2026-09-15T08:47:44.366478893Z",
  "published": "2026-09-11T20:20:02.907Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89726"
    }
  ],
  "upstream": [
    "CVE-2026-89726"
  ]
}