CVE-2026-74663

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net/sched: reject overly deep qdisc hierarchies<br /> <br /> Deep qdisc hierarchies can lead to excessive recursion in qdisc tree<br /> walkers and exhaust the kernel stack. The existing loop check does not<br /> cover the create-and-graft path, so a hierarchy can still be extended by<br /> creating a new child qdisc below an already deep parent.<br /> <br /> Store the hierarchy depth in struct Qdisc and update it when qdiscs are<br /> grafted. Reject new child qdiscs once the parent is already at the maximum<br /> allowed depth.