-3. **Routing table algorithms** `radix4_lockless` and `radix6_lockless` could leak kernel memory during routing table changes. Systems with frequently changing routing tables (e.g., BGP routers) would experience gradually increasing kernel memory usage over time, potentially leading to system instability. +
+3. Systems with **frequently changing routing tables**, such as BGP routers, that use the default algorithms may experience system instability due to a memory leak. This does not affect systems where alternative routing algorithms have been explicitly configured. +
**Workaround**: Switch to the non-lockless routing algorithm using `sysctl net.route.algo.inet4.algo=radix4` or `sysctl net.route.algo.inet6.algo=radix6`. +
**State**: Open — https://bugs.freebsd.org/297339 +