{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d7255959b69a4e727c61eb04231d11390d4f391e"
            },
            {
              "fixed": "a6ac6721326a75ff2d14c68db05f93b576d8762f"
            },
            {
              "fixed": "a6715d7ec472a476db17787697a4abda62962284"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64167.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nkho: skip KHO for crash kernel\n\nkho_fill_kimage() unconditionally populates the kimage with KHO\nmetadata for every kexec image type. When the image is a crash kernel,\nthis can be problematic as the crash kernel can run in a small reserved\nregion and the KHO scratch areas can sit outside it.\nThe crash kernel then faults during kho_memory_init() when it\ntries phys_to_virt() on the KHO FDT address:\n\n  Unable to handle kernel paging request at virtual address xxxxxxxx\n  ...\n    fdt_offset_ptr+...\n    fdt_check_node_offset_+...\n    fdt_first_property_offset+...\n    fdt_get_property_namelen_+...\n    fdt_getprop+...\n    kho_memory_init+...\n    mm_core_init+...\n    start_kernel+...\n\nkho_locate_mem_hole() already skips KHO logic for KEXEC_TYPE_CRASH\nimages, but kho_fill_kimage() was missing the same guard. As\nkho_fill_kimage() is the single point that populates image-\u003ekho.fdt\nand image-\u003ekho.scratch, fixing it here is sufficient for both arm64\nand x86 as the FDT and boot_params path are bailing out when these\nfields are unset.",
  "id": "CVE-2026-64167",
  "modified": "2026-08-15T11:31:10.371171225Z",
  "published": "2026-07-19T15:40:52.023Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6715d7ec472a476db17787697a4abda62962284"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6ac6721326a75ff2d14c68db05f93b576d8762f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64167.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64167"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "kho: skip KHO for crash kernel"
}