Vulnerability-Lookup

GHSA-FF5F-2MH8-CFFP

Vulnerability from github – Published: 2026-01-14 15:33 – Updated: 2026-01-14 15:33

Details

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Avoid walking the Namespace if start_node is NULL

Although commit 0c9992315e73 ("ACPICA: Avoid walking the ACPI Namespace if it is not there") fixed the situation when both start_node and acpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed on Honor Magicbook 14 Pro [1].

That happens due to the access to the member of parent_node in acpi_ns_get_next_node(). The NULL pointer dereference will always happen, no matter whether or not the start_node is equal to ACPI_ROOT_OBJECT, so move the check of start_node being NULL out of the if block.

Unfortunately, all the attempts to contact Honor have failed, they refused to provide any technical support for Linux.

The bad DSDT table's dump could be found on GitHub [2].

DMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025

[ rjw: Subject adjustment, changelog edits ]

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71118"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-14T15:16:01Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Avoid walking the Namespace if start_node is NULL\n\nAlthough commit 0c9992315e73 (\"ACPICA: Avoid walking the ACPI Namespace\nif it is not there\") fixed the situation when both start_node and\nacpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed\non Honor Magicbook 14 Pro [1].\n\nThat happens due to the access to the member of parent_node in\nacpi_ns_get_next_node().  The NULL pointer dereference will always\nhappen, no matter whether or not the start_node is equal to\nACPI_ROOT_OBJECT, so move the check of start_node being NULL\nout of the if block.\n\nUnfortunately, all the attempts to contact Honor have failed, they\nrefused to provide any technical support for Linux.\n\nThe bad DSDT table\u0027s dump could be found on GitHub [2].\n\nDMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025\n\n[ rjw: Subject adjustment, changelog edits ]",
  "id": "GHSA-ff5f-2mh8-cffp",
  "modified": "2026-01-14T15:33:01Z",
  "published": "2026-01-14T15:33:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71118"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d8bb08126920fd4b12dbf32d9250757c9064b36"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bc34293dfbd266c29875206849b4f8e8177e6df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f9b951ed11842373851dd3c91860778356d62d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d6c58dae8f6590c746ac5d0012ffe14a77539f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f91dad0a3b381244183ffbea4cec5a7a69d6f41e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71118 (GCVE-0-2025-71118)

Vulnerability from cvelistv5 – Published: 2026-01-14 15:06 – Updated: 2026-01-14 15:06

Title

ACPICA: Avoid walking the Namespace if start_node is NULL

Summary

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Avoid walking the Namespace if start_node is NULL Although commit 0c9992315e73 ("ACPICA: Avoid walking the ACPI Namespace if it is not there") fixed the situation when both start_node and acpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed on Honor Magicbook 14 Pro [1]. That happens due to the access to the member of parent_node in acpi_ns_get_next_node(). The NULL pointer dereference will always happen, no matter whether or not the start_node is equal to ACPI_ROOT_OBJECT, so move the check of start_node being NULL out of the if block. Unfortunately, all the attempts to contact Honor have failed, they refused to provide any technical support for Linux. The bad DSDT table's dump could be found on GitHub [2]. DMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025 [ rjw: Subject adjustment, changelog edits ]

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/7f9b951ed11842373…
	https://git.kernel.org/stable/c/1bc34293dfbd266c2…
	https://git.kernel.org/stable/c/0d8bb08126920fd4b…
	https://git.kernel.org/stable/c/f91dad0a3b3812441…
	https://git.kernel.org/stable/c/9d6c58dae8f6590c7…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7f9b951ed11842373851dd3c91860778356d62d3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1bc34293dfbd266c29875206849b4f8e8177e6df (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0d8bb08126920fd4b12dbf32d9250757c9064b36 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f91dad0a3b381244183ffbea4cec5a7a69d6f41e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9d6c58dae8f6590c746ac5d0012ffe14a77539f0 (git)

Linux

Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/acpica/nswalk.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7f9b951ed11842373851dd3c91860778356d62d3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "1bc34293dfbd266c29875206849b4f8e8177e6df",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "0d8bb08126920fd4b12dbf32d9250757c9064b36",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f91dad0a3b381244183ffbea4cec5a7a69d6f41e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9d6c58dae8f6590c746ac5d0012ffe14a77539f0",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/acpica/nswalk.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.160",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.120",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.64",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Avoid walking the Namespace if start_node is NULL\n\nAlthough commit 0c9992315e73 (\"ACPICA: Avoid walking the ACPI Namespace\nif it is not there\") fixed the situation when both start_node and\nacpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed\non Honor Magicbook 14 Pro [1].\n\nThat happens due to the access to the member of parent_node in\nacpi_ns_get_next_node().  The NULL pointer dereference will always\nhappen, no matter whether or not the start_node is equal to\nACPI_ROOT_OBJECT, so move the check of start_node being NULL\nout of the if block.\n\nUnfortunately, all the attempts to contact Honor have failed, they\nrefused to provide any technical support for Linux.\n\nThe bad DSDT table\u0027s dump could be found on GitHub [2].\n\nDMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025\n\n[ rjw: Subject adjustment, changelog edits ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-14T15:06:05.861Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7f9b951ed11842373851dd3c91860778356d62d3"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bc34293dfbd266c29875206849b4f8e8177e6df"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d8bb08126920fd4b12dbf32d9250757c9064b36"
        },
        {
          "url": "https://git.kernel.org/stable/c/f91dad0a3b381244183ffbea4cec5a7a69d6f41e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d6c58dae8f6590c746ac5d0012ffe14a77539f0"
        }
      ],
      "title": "ACPICA: Avoid walking the Namespace if start_node is NULL",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71118",
    "datePublished": "2026-01-14T15:06:05.861Z",
    "dateReserved": "2026-01-13T15:30:19.654Z",
    "dateUpdated": "2026-01-14T15:06:05.861Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FF5F-2MH8-CFFP

CVE-2025-71118 (GCVE-0-2025-71118)

Tags

Sightings

Nomenclature