Bluetooth: Read LE Max data length command

[platform/kernel/linux-starfive.git] / fs / namespace.c

diff --git a/fs/namespace.c b/fs/namespace.c
index 68789f8..e04a9e9 100644 (file)
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4180,9 +4180,9 @@ out:
        unlock_mount_hash();
 
        if (kattr->propagation) {
-               namespace_unlock();
                if (err)
                        cleanup_group_ids(mnt, NULL);
+               namespace_unlock();
        }
 
        return err;
@@ -4238,6 +4238,13 @@ static int build_mount_idmapped(const struct mount_attr *attr, size_t usize,
                err = -EPERM;
                goto out_fput;
        }
+
+       /* We're not controlling the target namespace. */
+       if (!ns_capable(mnt_userns, CAP_SYS_ADMIN)) {
+               err = -EPERM;
+               goto out_fput;
+       }
+
        kattr->mnt_userns = get_user_ns(mnt_userns);
 
 out_fput: