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

Vulnerability from cvelistv5 – Published: 2026-01-14 15:06 – Updated: 2026-05-11 21:55
VLAI
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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b84edef48cc8afb41150949a87dcfa81bc95b53e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ecb296286c8787895625bd4c53e9478db4ae139c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7f9b951ed11842373851dd3c91860778356d62d3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1bc34293dfbd266c29875206849b4f8e8177e6df (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0d8bb08126920fd4b12dbf32d9250757c9064b36 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f91dad0a3b381244183ffbea4cec5a7a69d6f41e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9d6c58dae8f6590c746ac5d0012ffe14a77539f0 (git)
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Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
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 , ≤ * (original_commit_for_fix)
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.