A vulnerability identified as critical has been detected in Linux Kernel up to 5.15.191/6.1.150/6.6.104/6.12.45/6.16.5. The affected element is the function
br_nf_local_in
of the file net/bridge/br_netfilter_hooks.c. Performing manipulation of the argument hash results in privilege escalation.
This vulnerability is known as CVE-2025-39894. Access to the local network is required for this attack. No exploit is available.
You should upgrade the affected component.