{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6cc50e1c5b57180fd37a31282000f43859b0fe73"
            },
            {
              "fixed": "b51c343a81e6e806525a4435e22532c107dd7e9d"
            },
            {
              "fixed": "46cf3646dea54baeaa2eafe3fb1ba769947f31b0"
            },
            {
              "fixed": "524a6079395916fb3d790ef2bb46a1d2939b27dd"
            },
            {
              "fixed": "594973a2e54924d8ba31c9faac669fc1ba6fcb80"
            },
            {
              "fixed": "ab6c34b9829d5de03f1d08a47a2253729a6e7e27"
            },
            {
              "fixed": "7105d9f1387d63b15c9a860674fc92c959181f2f"
            },
            {
              "fixed": "b44cc78ff46b96e72d333a3be6aaaa0a14797263"
            },
            {
              "fixed": "e4ef723d8975a2694cc90733a6b888a5e2841842"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.15"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.90"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.32"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46191.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Avoid OOB font access if console rotation fails\n\nClear the font buffer if the reallocation during console rotation fails\nin fbcon_rotate_font(). The putcs implementations for the rotated buffer\nwill return early in this case. See [1] for an example.\n\nCurrently, fbcon_rotate_font() keeps the old buffer, which is too small\nfor the rotated font. Printing to the rotated console with a high-enough\ncharacter code will overflow the font buffer.\n\nv2:\n- fix typos in commit message",
  "id": "CVE-2026-46191",
  "modified": "2026-07-15T01:49:14.429973817Z",
  "published": "2026-05-28T09:36:44.961Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46cf3646dea54baeaa2eafe3fb1ba769947f31b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/524a6079395916fb3d790ef2bb46a1d2939b27dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b51c343a81e6e806525a4435e22532c107dd7e9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46191.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46191"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "fbcon: Avoid OOB font access if console rotation fails"
}