CVE-2026-23137
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-02-14 16:15:53.703000
Last modified
2026-10-30 13:18:33.770000
View original CVE JSON
{
"id": "CVE-2026-23137",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-02-14T16:15:53.703",
"lastModified": "2026-10-30T13:18:33.770",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: unittest: Fix memory leak in unittest_data_add()\n\nIn unittest_data_add(), if of_resolve_phandles() fails, the allocated\nunittest_data is not freed, leading to a memory leak.\n\nFix this by using scope-based cleanup helper __free(kfree) for automatic\nresource cleanup. This ensures unittest_data is automatically freed when\nit goes out of scope in error paths.\n\nFor the success path, use retain_and_null_ptr() to transfer ownership\nof the memory to the device tree and prevent double freeing."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nof: unittest: Corrección de fuga de memoria en unittest_data_add()\n\nEn unittest_data_add(), si of_resolve_phandles() falla, el unittest_data asignado no se libera, lo que provoca una fuga de memoria.\n\nEsto se soluciona usando un ayudante de limpieza basado en el ámbito __free(kfree) para la limpieza automática de recursos. Esto asegura que unittest_data se libera automáticamente cuando sale del ámbito en rutas de error.\n\nPara la ruta de éxito, use retain_and_null_ptr() para transferir la propiedad de la memoria al árbol de dispositivos y evitar la doble liberación."
}
],
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{
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"versionType": "original_commit_for_fix",
"status": "unaffected"
}
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}
],
"metrics": {
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{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
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},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
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