CVE-2025-37915

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, related to the net sched component, specifically the drr class with netem as a child qdisc. The issue arises when the parent qdisc's enqueue callback becomes reentrant due to a netem child qdisc, leading to memory corruption as the same classifier is added to the list twice. The patch resolves this by checking if the class was already added to the active list before adding it to the list, covering the reentrant case.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.