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        "name": "Kernel"
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  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68434.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms\n\nCommit b1b4efea05a5 (\"serial: 8250_mid: Disable DMA for selected\nplatforms\") replaced the dnv_board setup and exit callbacks with\nPTR_IF(false, ...), which evaluates to NULL. However, the three call\nsites in mid8250_probe() and mid8250_remove() unconditionally\ndereference these function pointers without NULL checks, causing a NULL\npointer dereference (kernel oops) on any Denverton (DNV), Ice Lake Xeon\nD (ICX-D/CDF), or Snowridge (SNR) platform.\n\nFix this by adding the missing NULL checks before calling the setup and\nexit callbacks.",
  "id": "CVE-2026-68434",
  "modified": "2026-08-13T03:51:40.822402343Z",
  "published": "2026-08-12T00:07:21.897Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1096397c31f6bffa95e77bdd18fbca085be83e10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/600dcd548fb2b00a69f447684f52ba45d5a3540e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fb13fd7e9a59a37cd911efff83abe19e3ee029d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cbad52ccfa6a7f089cfab34979bc6cc3bff25be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68434.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68434"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "serial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms"
}