{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "acd16380523b400400523fe54c7499320e558e80"
            },
            {
              "fixed": "e9482feeed66d4bc805458631013e9b61b1a9eaf"
            },
            {
              "fixed": "fa9b991bf678dd412dc0ed080672d34d7558d7af"
            },
            {
              "fixed": "3992ced109c70b771efad9e51ae68e5c7a04dea3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80564.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: fix NULL dereference due to missing ptp adjfine\n\nFix NULL dereference due to missing implementation of adjfine, which can\nbe triggered from usermode as follows:\n\nsudo ./testptp -d /dev/ptp0 -f 0\n[  551.943697] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[...]\n[  552.061946] Call Trace:\n[  552.064487]  \u003cTASK\u003e\n[  552.066681]  ptp_clock_adjtime+0x1c0/0x2c0\n[  552.070874]  ? get_clock_desc+0x6b/0xb0\n[  552.074825]  pc_clock_adjtime+0x78/0xc0\n[  552.078755]  __do_sys_clock_adjtime+0x85/0x110\n[  552.083293]  do_syscall_64+0xea/0x610",
  "id": "CVE-2026-80564",
  "modified": "2026-08-28T11:30:45.074669101Z",
  "published": "2026-08-26T14:37:28.351Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80564.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80564"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "gve: fix NULL dereference due to missing ptp adjfine"
}