{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "88f6ecb058801e9ce7b9aabc966530118d7cd53c"
            },
            {
              "fixed": "821050631750e982007c0856c119346edba51cae"
            },
            {
              "fixed": "1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4"
            },
            {
              "fixed": "03b49c991abb8d021ca6fe51cd173447236b0552"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.113"
            },
            {
              "fixed": "6.18.56"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98754.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: hold port lock when clearing tty pointer in vcc_cleanup\n\nvcc_cleanup() sets port-\u003etty to NULL without holding port-\u003elock, racing\nwith vcc_event() LDC callbacks that read port-\u003etty under port-\u003elock and\nthen use tty-\u003eport. This can cause a use-after-free when the callback\ndereferences tty-\u003eport after cleanup has already destroyed and freed it.",
  "id": "CVE-2026-98754",
  "modified": "2026-10-20T02:31:05.630088359Z",
  "published": "2026-10-18T15:47:40.255Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98754.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98754"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup"
}