ipv6: fix memory leak in fib6rulesuppress
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.7 by commit 8ef8a76a340ebdb2c2eea3f6fb0ebbed09a16383, it was introduced in version v5.4 by commit ca7a03c4175366a92cee0ccc4fec0038c3266e26. For more details please see the references link.