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Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index b7da9000dfb1..76d3f3387554 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1479,7 +1479,7 @@ static int copy_files(unsigned long clone_flags, struct task_struct *tsk)
goto out;
}
- newf = dup_fd(oldf, &error);
+ newf = dup_fd(oldf, NR_OPEN_MAX, &error);
if (!newf)
goto out;
@@ -2866,14 +2866,15 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
/*
* Unshare file descriptor table if it is being shared
*/
-static int unshare_fd(unsigned long unshare_flags, struct files_struct **new_fdp)
+int unshare_fd(unsigned long unshare_flags, unsigned int max_fds,
+ struct files_struct **new_fdp)
{
struct files_struct *fd = current->files;
int error = 0;
if ((unshare_flags & CLONE_FILES) &&
(fd && atomic_read(&fd->count) > 1)) {
- *new_fdp = dup_fd(fd, &error);
+ *new_fdp = dup_fd(fd, max_fds, &error);
if (!*new_fdp)
return error;
}
@@ -2933,7 +2934,7 @@ int ksys_unshare(unsigned long unshare_flags)
err = unshare_fs(unshare_flags, &new_fs);
if (err)
goto bad_unshare_out;
- err = unshare_fd(unshare_flags, &new_fd);
+ err = unshare_fd(unshare_flags, NR_OPEN_MAX, &new_fd);
if (err)
goto bad_unshare_cleanup_fs;
err = unshare_userns(unshare_flags, &new_cred);
@@ -3022,7 +3023,7 @@ int unshare_files(struct files_struct **displaced)
struct files_struct *copy = NULL;
int error;
- error = unshare_fd(CLONE_FILES, &copy);
+ error = unshare_fd(CLONE_FILES, NR_OPEN_MAX, &copy);
if (error || !copy) {
*displaced = NULL;
return error;