CVE-2023-53830: platform/x86: think-lmi: Fix memory leak when showing current settings

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-09 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Fix memory leak when showing current settings When retriving a item string with tlmi_setting(), the result has to be freed using kfree(). In current_value_show() however, malformed item strings are not freed, causing a memory leak. Fix this by eliminating the early return responsible for this.

Affected products

Linux kernel: 5.14 — fixed in 6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/5f99014c19fa50a5719c0bb78143282632675893
https://git.kernel.org/stable/c/9071525bfcb1f5674117dbed3eca0cd7b122813b
https://git.kernel.org/stable/c/a3c4c053014585dcf20f4df954791b74d8a8afcd
https://git.kernel.org/stable/c/b9396d991abe8d1ac31a043274ab20b49f92c2e6

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