CVE-2025-71118

Description

In the Linux kernel, the following vulnerability has been resolved:ACPICA: Avoid walking the Namespace if start_node is nullAlthough commit 0c9992315e73 (ACPICA: Avoid walking the ACPI Namespaceif it is not there) fixed the situation when both start_node andacpi_gbl_root_node are null, the Linux kernel mainline now still crashedon Honor Magicbook 14 Pro [1].That happens due to the access to the member of parent_node inacpi_ns_get_next_node(). The null pointer dereference will alwayshappen, no matter whether or not the start_node is equal toACPI_ROOT_OBJECT, so move the check of start_node being nullout of the if block.Unfortunately, all the attempts to contact Honor have failed, theyrefused to provide any technical support for Linux.The bad DSDT tables 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 ]

Risk Information

Base Score

5.5

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.053

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234