Bug 2532431 (CVE-2026-81018) - CVE-2026-81018 kernel: platform/x86: think-lmi: Free system certificate signatures
Summary: CVE-2026-81018 kernel: platform/x86: think-lmi: Free system certificate signa...
Keywords:
Status: NEW
Alias: CVE-2026-81018
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-11 22:59 UTC by OSIDB Bzimport
Modified: 2026-09-14 21:14 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-11 22:59:34 UTC 
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.
Comment 1 Keith Grant 2026-09-14 21:13:46 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-81018.mbox
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