Answer in brief
CVE-2026-23137 records a Medium severity (CVSS 5.5) 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), 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.
CVSS is 5.5. 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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <58baf98d1bdab897fd796f39a16061bade229d71 || >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <f09b0f705bd7197863b90256ef533a6414d1db2c || >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b | 58baf98d1bdab897fd796f39a16061bade229d71, f09b0f705bd7197863b90256ef533a6414d1db2c, 235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b |
| Linux/Linuxgeneric | 3.18 | Not reported |
| Linux/Linuxgeneric | >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <4c7ad40c285ab85e3614433e063f14aac2e2fe17 || >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <58baf98d1bdab897fd796f39a16061bade229d71 || >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <f09b0f705bd7197863b90256ef533a6414d1db2c || >=2eb46da2a760e5764c48b752a5ef320e02b96b21 <235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b | 4c7ad40c285ab85e3614433e063f14aac2e2fe17, 58baf98d1bdab897fd796f39a16061bade229d71, f09b0f705bd7197863b90256ef533a6414d1db2c, 235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b |
Published upstream
Feb 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 14, 2026
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.