Is io.netty:netty-transport-native-kqueue safe?

GHSA-w573-9ffj-6ff9

nettyunixsocketrecvFd sets msgcontrol to char control[CMSGSPACE(sizeof(int))] (line 940) — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has cmsglen = CMSGLEN(8) = 24, which fits exactly with no MSGCTRUNC, so the kernel installs both fds in the receiving process. The subsequent check cmsg->cmsglen == CMSGLEN(sizeof(int)) (line 972, expected 20) fails, the branch that would read the fd is skipped, and neither installed fd is closed. The for(;;) loop calls recvmsg again (non-blocking → EAGAIN → Java maps to 0 → read loop exits normally), leaving two leaked fds per message. There is no MSGCTRUNC handling. Reachable via Epoll/KQueue DomainSocketChannel when the application opts into DomainSocketReadMode.FILEDESCRIPTORS (non-default).