diff options
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index f84afa89ef4b..166f1c6b72b6 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -166,6 +166,13 @@ rfork(td, uap) /* Don't allow kernel only flags. */ if ((uap->flags & RFKERNELONLY) != 0) return (EINVAL); + /* + * Don't allow sharing of file descriptor table unless + * RFTHREAD flag is supplied + */ + if ((uap->flags & (RFPROC | RFTHREAD | RFFDG | RFCFDG)) == + RFPROC) + return(EINVAL); mtx_lock(&Giant); error = fork1(td, uap->flags, 0, &p2); if (error == 0) { |