{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2"
            },
            {
              "fixed": "08c8ec28547987e55a90c662f8795e05c2925498"
            },
            {
              "fixed": "9096edfd6f2edbc79612b482547e0972edbcfe4b"
            },
            {
              "fixed": "89210cb5ff8fdbe055c97ac688be2268f6c815ae"
            },
            {
              "fixed": "d0f3312f7800eb0e00d1264f66104c788f43dd69"
            },
            {
              "fixed": "b86438a5c6b0250ccb07dd380184d1e70e0dea6c"
            },
            {
              "fixed": "6ea61f1d4cbaa0db937e31bffc041fb8afeacf52"
            },
            {
              "fixed": "500cb24cd61bad8a2747ddfc49b7034899c82d94"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.13.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89817.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: NUL-terminate TV mode names read from the device\n\ngud_connector_add_tv_mode() reads a buffer of fixed-size mode names from\nthe USB device and passes pointers into it to\ndrm_mode_create_tv_properties_legacy(), which calls strlen() on each one.\nNothing guarantees the device NUL-terminates a name, so strlen() can run\npast the end of a slot and, for the last mode, past the end of the\nallocation.\n\nTerminate each name at the end of its slot before use.",
  "id": "CVE-2026-89817",
  "modified": "2026-09-18T03:30:53.783332977Z",
  "published": "2026-09-16T10:30:49.977Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89817.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89817"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/gud: NUL-terminate TV mode names read from the device"
}