{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-05T23:24:17.790","vulnerabilities":[{"cve":{"id":"CVE-2025-21810","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-02-27T20:16:03.587","lastModified":"2025-10-28T02:55:12.300","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: class: Fix wild pointer dereferences in API class_dev_iter_next()\n\nThere are a potential wild pointer dereferences issue regarding APIs\nclass_dev_iter_(init|next|exit)(), as explained by below typical usage:\n\n// All members of @iter are wild pointers.\nstruct class_dev_iter iter;\n\n// class_dev_iter_init(@iter, @class, ...) checks parameter @class for\n// potential class_to_subsys() error, and it returns void type and does\n// not initialize its output parameter @iter, so caller can not detect\n// the error and continues to invoke class_dev_iter_next(@iter) even if\n// @iter still contains wild pointers.\nclass_dev_iter_init(&iter, ...);\n\n// Dereference these wild pointers in @iter here once suffer the error.\nwhile (dev = class_dev_iter_next(&iter)) { ... };\n\n// Also dereference these wild pointers here.\nclass_dev_iter_exit(&iter);\n\nActually, all callers of these APIs have such usage pattern in kernel tree.\nFix by:\n- Initialize output parameter @iter by memset() in class_dev_iter_init()\n  and give callers prompt by pr_crit() for the error.\n- Check if @iter is valid in class_dev_iter_next()."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: núcleo del controlador: clase: Arreglar desreferencias de punteros salvajes en la API class_dev_iter_next() Hay un posible problema de desreferencias de punteros salvajes con respecto a las API class_dev_iter_(init|next|exit()), como se explica a continuación en el uso típico: // Todos los miembros de @iter son punteros salvajes. struct class_dev_iter iter; // class_dev_iter_init(@iter, @class, ...) comprueba el parámetro @class en busca de un posible error class_to_subsys(), y devuelve el tipo void y no inicializa su parámetro de salida @iter, por lo que el llamador no puede detectar el error y continúa invocando class_dev_iter_next(@iter) incluso si @iter todavía contiene punteros salvajes. class_dev_iter_init(&iter, ...); // Desreferencia estos punteros salvajes en @iter aquí una vez que sufre el error. mientras (dev = class_dev_iter_next(&iter)) { ... }; // También desreferencia estos punteros salvajes aquí. class_dev_iter_exit(&iter); En realidad, todos los que llaman a estas API tienen ese patrón de uso en el árbol del kernel. Solucione esto: - Inicialice el parámetro de salida @iter con memset() en class_dev_iter_init() y dé a los que llaman un aviso con pr_crit() para el error. - Verifique si @iter es válido en class_dev_iter_next()."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","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}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.76","matchCriteriaId":"C6A28F1A-2CCA-4B18-AA73-20D184A7D477"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.13","matchCriteriaId":"2897389C-A8C3-4D69-90F2-E701B3D66373"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.13.2","matchCriteriaId":"6D4116B1-1BFD-4F23-BA84-169CC05FC5A3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1614e75d1a1b63db6421c7a4bf37004720c7376c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5c504e9767b947cf7d4e29b811c0c8b3c53242b7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e128f82f7006991c99a58114f70ef61e937b1ac1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f4b9bc823b0cfdebfed479c0e87d6939c7562e87","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}