{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53856",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53856"
  ],
  "published": "2025-12-09T01:31:24Z",
  "summary": "of: overlay: Call of_changeset_init() early",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: overlay: Call of_changeset_init() early\n\nWhen of_overlay_fdt_apply() fails, the changeset may be partially\napplied, and the caller is still expected to call of_overlay_remove() to\nclean up this partial state.\n\nHowever, of_overlay_apply() calls of_resolve_phandles() before\ninit_overlay_changeset().  Hence if the overlay fails to apply due to an\nunresolved symbol, the overlay_changeset.cset.entries list is still\nuninitialized, and cleanup will crash with a NULL-pointer dereference in\noverlay_removal_is_ok().\n\nFix this by moving the call to of_changeset_init() from\ninit_overlay_changeset() to of_overlay_fdt_apply(), where all other\nearly initialization is done.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1",
        "1:6.1.47-1+rpt2",
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "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": {
          "1:6.1.21-1+rpt1": {
            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.53"
          },
          "1:6.1.47-1+rpt2": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.53"
          },
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.53",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53856"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/01bb96ad38089f5cc6de7746dac13437d35eb1dc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3fb210cd521c9efcb211e9f5ce40fc907200bf13"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/be86241bf5d1efd16d8a7231c13b33459c5d755d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c403c81b577a67fe9ec6a2e89d143256487be50f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a9515ff4fb142b690a0d2b58782b15903b990dba"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}