CVE-2026-81018
platform/x86: think-lmi: Free system certificate signatures
Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Free system certificate signatures Multi-certificate support also allows the system authentication object to store ->signature and ->save_signature, which leak when the driver is removed. Free the signatures to avoid leaking memory.
INFO
Published Date :
Sept. 11, 2026, 8:19 p.m.
Last Modified :
Sept. 11, 2026, 8:19 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to a version where the vulnerability is resolved.
- Ensure system certificate signatures are properly freed.
- Review driver removal procedures for memory leak vulnerabilities.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-81018.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-81018 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-81018
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-81018 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-81018 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 11, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Free system certificate signatures Multi-certificate support also allows the system authentication object to store ->signature and ->save_signature, which leak when the driver is removed. Free the signatures to avoid leaking memory. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/81xxx/CVE-2026-81018.json">CVE-2026-81018</a> Added Reference https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d Added Reference https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363 Added Reference https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a