CVE-2025-71157 | Linux Kernel up to 6.12.63/6.18.3/6.19-rc3 RDMA ib_del_sub_device_and_put reference count

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.12.63/6.18.3/6.19-rc3. This affects the function ib_del_sub_device_and_put of the component RDMA. The manipulation leads to improper update of reference count.

This vulnerability is documented as CVE-2025-71157. The attack requires being on the local network. There is not any exploit available.

It is advisable to upgrade the affected component.