# CVE-2026-23137

## Summary

- **CVE ID:** CVE-2026-23137
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** N/A
- **Published:** Feb 14, 2026
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

- Linux — Linux (2eb46da2a760e5764c48b752a5ef320e02b96b21)
- Linux — Linux (3.18)
- Linux — Linux (0)
- Linux — Linux (6.18.6)
- Linux — Linux (6.19)
- Linux — Linux (6.12.110)

## References

- [CNA](https://git.kernel.org/stable/c/f09b0f705bd7197863b90256ef533a6414d1db2c)
- [CNA](https://git.kernel.org/stable/c/235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b)
- [CNA](https://git.kernel.org/stable/c/58baf98d1bdab897fd796f39a16061bade229d71)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 2.6

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._