platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int() (CVE-2026-63839) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-63839

platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()

Answer in brief

CVE-2026-63839 records a Unknown severity vulnerability in platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 19, 2026Updated Sep 7, 2026Source checked Sep 7, 2026First seen by HOL Sep 7, 2026Material review Sep 7, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=e521d16e76cd9ea99c585e064f4e7daf657b1451 <ce493f9261cd3f4bffe2f72481d8c3ee01c559a3 \|\| >=e521d16e76cd9ea99c585e064f4e7daf657b1451 <40a984dd0602e238ad893b167751620e751d1199 \|\| >=e521d16e76cd9ea99c585e064f4e7daf657b1451 <0c3887a134f191723b53e2a47e501b534c8723ee	ce493f9261cd3f4bffe2f72481d8c3ee01c559a3, 40a984dd0602e238ad893b167751620e751d1199, 0c3887a134f191723b53e2a47e501b534c8723ee
Linux/Linuxgeneric	6.17	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to ce493f9261cd3f4bffe2f72481d8c3ee01c559a3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 7, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int() lwmi_dev_evaluate_int() leaks output.pointer when retval == NULL (found by sashiko.dev [1]). Fix it by moving `ret_obj = output.pointer' outside of the `if (retval)' block so that it is always freed by the __free cleanup callback. No functional change intended.

Quoted source text, attributed separately from HOL analysis.