CVE-2025-71097

A flaw was found in the Linux kernel's IPv4 networking subsystem. A local attacker with low privileges could exploit a reference count leak when nexthop objects are deleted. This occurs because error routes, such as blackhole routes, are not properly flushed, causing them to retain a reference to the deleted nexthop object and its associated device. This vulnerability can lead to a Denial of Service (DoS) due to resource exhaustion, preventing the affected nexthop device from being freed.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.