{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38071",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38071"
  ],
  "published": "2025-06-18T09:34:24Z",
  "summary": "x86/mm: Check return value from memblock_phys_alloc_range()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Check return value from memblock_phys_alloc_range()\n\nAt least with CONFIG_PHYSICAL_START=0x100000, if there is < 4 MiB of\ncontiguous free memory available at this point, the kernel will crash\nand burn because memblock_phys_alloc_range() returns 0 on failure,\nwhich leads memblock_phys_free() to throw the first 4 MiB of physical\nmemory to the wolves.\n\nAt a minimum it should fail gracefully with a meaningful diagnostic,\nbut in fact everything seems to work fine without the weird reserve\nallocation.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.141",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38071"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8c18c904d301ffeb33b071eadc55cd6131e1e9be"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bffd5f2815c5234d609725cd0dc2f4bc5de2fc67"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c6f2694c580c27dca0cf7546ee9b4bfa6b940e38"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dde4800d2b0f68b945fd81d4fc2d4a10ae25f743"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/631ca8909fd5c62b9fda9edda93924311a78a9c4"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}