{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88"
            },
            {
              "fixed": "c1a276a731d02cbb728d0530f327a68728f2d8b0"
            },
            {
              "fixed": "24fbed0a2a45f5f379ef2b53bd2abe58be1142ad"
            },
            {
              "fixed": "efa96a22613b86e05cd81229ce0be411c1a4a79a"
            },
            {
              "fixed": "9a77a7639dfdc3eca417cd37620ce64da79c80c4"
            },
            {
              "fixed": "b4d05032e9af7137eab8f3af2855073f896ca843"
            },
            {
              "fixed": "f7c67c97b37c11f2a95c204092fb8159f2779e8f"
            },
            {
              "fixed": "4dad7e870c7e5178f71b5e1e4f67934b9e8cc207"
            },
            {
              "fixed": "ffa0aa5b625fe0bed7463ac613f8b06676ff4542"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.36"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72238.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/boot: Validate console=uart8250 baud rate to fix early boot hang\n\nWhen the baud rate is empty, 0, invalid, or overflows to 0 when stored\nas an int, the system will hang during early boot because of a division\nby zero in early_serial_init().\n\nFall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent\nan early system hang.",
  "id": "CVE-2026-72238",
  "modified": "2026-08-18T03:31:20.429888099Z",
  "published": "2026-08-15T05:54:27.424Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72238.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72238"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "x86/boot: Validate console=uart8250 baud rate to fix early boot hang"
}