{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e"
            },
            {
              "fixed": "d3e535533767c85788529e626478718b7e95a59f"
            },
            {
              "fixed": "3b5a754ec86bc6064af9aca76eb191c2405e6b0c"
            },
            {
              "fixed": "a785c4e2a999c2d51dfcf40d317cfb30cc735d2c"
            },
            {
              "fixed": "0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc"
            },
            {
              "fixed": "11a93180a70bb3095a9bd80d113d9277e30d9959"
            },
            {
              "fixed": "f57b61624c86ef8f87f6e6b7dd0755de03d90e89"
            },
            {
              "fixed": "011a0502801c8536f64141a2b61362c14f456544"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.23"
            },
            {
              "fixed": "5.15.203"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.16"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43123.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: check return value of con2fb_acquire_newinfo()\n\nIf fbcon_open() fails when called from con2fb_acquire_newinfo() then\ninfo-\u003efbcon_par pointer remains NULL which is later dereferenced.\n\nAdd check for return value of the function con2fb_acquire_newinfo() to\navoid it.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "id": "CVE-2026-43123",
  "modified": "2026-07-08T05:38:46.462041399Z",
  "published": "2026-05-06T11:27:09.553Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43123.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43123"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "fbcon: check return value of con2fb_acquire_newinfo()"
}