kernel: devlink: fix possible use-after-free and memory leaks in devlink_init()

A vulnerability was found in the devlinkinit function in the Linux kernel. Use-after-free and memory leak issues can occur due to an incorrect order of initialization and cleanup in case of errors. This issue could lead to memory corruption or crashes...

UBUNTU-CVE-2024-26734

In the Linux kernel, the following vulnerability has been resolved: devlink: fix possible use-after-free and memory leaks in devlinkinit The pernet operations structure for the subsystem must be registered before registering the generic netlink family. Make an unregister in case of unsuccessful...