Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-74746

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
26/08/2026
Última modificación:
27/08/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> netfilter: flowtable: publish GC-visible tuple last<br /> <br /> nf_flow_table_iterate() only treats original-direction tuple nodes as<br /> owning entries. Publishing the original node first lets GC observe and<br /> free a flow while flow_offload_add() is still inserting the reply node.<br /> Publish the reply node first and the original node last so GC never<br /> sees a partially installed flow.<br /> <br /> KASAN can trigger slab-use-after-free read and write reports in the<br /> flowtable/rhashtable path (rht_deferred_worker, jhash, flow_offload_del,<br /> flow_offload_lookup, etc.).