of: unittest: Fix memory leak in unittest_data_add() (CVE-2026-23137) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-23137

of: unittest: Fix memory leak in unittest_data_add()

Answer in brief

CVE-2026-23137 records a Unknown severity vulnerability in of: unittest: Fix memory leak in unittest_data_add(). 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 Feb 14, 2026Updated Sep 14, 2026Source checked Sep 14, 2026First seen by HOL Sep 14, 2026Material review Sep 14, 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	>=2eb46da2a760e5764c48b752a5ef320e02b96b21 <58baf98d1bdab897fd796f39a16061bade229d71 \|\| >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <f09b0f705bd7197863b90256ef533a6414d1db2c \|\| >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b	58baf98d1bdab897fd796f39a16061bade229d71, f09b0f705bd7197863b90256ef533a6414d1db2c, 235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b
Linux/Linuxgeneric	3.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 58baf98d1bdab897fd796f39a16061bade229d71 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Feb 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 14, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: of: unittest: Fix memory leak in unittest_data_add() In unittest_data_add(), if of_resolve_phandles() fails, the allocated unittest_data is not freed, leading to a memory leak. Fix this by using scope-based cleanup helper __free(kfree) for automatic resource cleanup. This ensures unittest_data is automatically freed when it goes out of scope in error paths. For the success path, use retain_and_null_ptr() to transfer ownership of the memory to the device tree and prevent double freeing.

Quoted source text, attributed separately from HOL analysis.