{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2025-39902","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-10-01T08:15:32.993","lastModified":"2026-10-19T21:10:00.160","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slub: avoid accessing metadata when pointer is invalid in object_err()\n\nobject_err() reports details of an object for further debugging, such as\nthe freelist pointer, redzone, etc. However, if the pointer is invalid,\nattempting to access object metadata can lead to a crash since it does\nnot point to a valid object.\n\nOne known path to the crash is when alloc_consistency_checks()\ndetermines the pointer to the allocated object is invalid because of a\nfreelist corruption, and calls object_err() to report it. The debug code\nshould report and handle the corruption gracefully and not crash in the\nprocess.\n\nIn case the pointer is NULL or check_valid_pointer() returns false for\nthe pointer, only print the pointer value and skip accessing metadata."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmm/slub: evitar acceder a metadatos cuando el puntero es inválido en object_err()\n\nobject_err() informa detalles de un objeto para depuración adicional, como el puntero de la freelist, la redzone, etc. Sin embargo, si el puntero es inválido, intentar acceder a los metadatos del objeto puede provocar un fallo ya que no apunta a un objeto válido.\n\nUna ruta conocida al fallo es cuando alloc_consistency_checks() determina que el puntero al objeto asignado es inválido debido a una corrupción de la freelist, y llama a object_err() para informarlo. El código de depuración debería informar y manejar la corrupción de manera elegante y no fallar en el proceso.\n\nEn caso de que el puntero sea NULL o check_valid_pointer() devuelva falso para el puntero, solo imprimir el valor del puntero y omitir el acceso a los metadatos."}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"872f2c34ff232af1e65ad2df86d61163c8ffad42","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"f66012909e7bf383fcdc5850709ed5716073fdc4","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"7e287256904ee796c9477e3ec92b07f236481ef3","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"1f0797f17927b5cad0fb7eced422f9a7c30a3191","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"0ef7058b4dc6fcef622ac23b45225db57f17b83f","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"dda6ec365ab04067adae40ef17015db447e90736","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"3baa1da473e6e50281324ff1d332d1a07a3bb02e","versionType":"git","status":"affected"},{"version":"81819f0fc8285a2a5a921c019e3e3d7b6169d225","lessThan":"b4efccec8d06ceb10a7d34d7b1c449c569d53770","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.22","status":"affected"},{"version":"0","lessThan":"2.6.22","versionType":"semver","status":"unaffected"},{"version":"5.4.299","lessThanOrEqual":"5.4.*","versionType":"semver","status":"unaffected"},{"version":"5.10.243","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.192","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.151","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.105","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.46","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.16.6","lessThanOrEqual":"6.16.*","versionType":"semver","status":"unaffected"},{"version":"6.17","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2},{"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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-15T21:54:38.930497Z","id":"CVE-2025-39902","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA 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