--- a/kernel/pid.c +++ b/kernel/pid.c @@ -42,6 +42,7 @@ #include <linux/sched/signal.h> #include <linux/sched/task.h> #include <linux/idr.h> +#include <net/sock.h> struct pid init_struct_pid = { .count = REFCOUNT_INIT(1), @@ -642,10 +643,12 @@ static int pidfd_getfd(struct pid *pid, } ret = get_unused_fd_flags(O_CLOEXEC); - if (ret < 0) + if (ret < 0) { fput(file); - else + } else { + __receive_sock(file); fd_install(ret, file); + } return ret; }