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-rw-r--r--fs/overlayfs/export.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/overlayfs/export.c b/fs/overlayfs/export.c
index ebde05c9cf62..2eada97bbd23 100644
--- a/fs/overlayfs/export.c
+++ b/fs/overlayfs/export.c
@@ -391,6 +391,11 @@ static struct dentry *ovl_lookup_real_one(struct dentry *connected,
* pointer because we hold no lock on the real dentry.
*/
take_dentry_name_snapshot(&name, real);
+ /*
+ * No mnt_userns handling here: it's an internal lookup. Could skip
+ * permission checking altogether, but for now just use non-mnt_userns
+ * transformed ids.
+ */
this = lookup_one_len(name.name.name, connected, name.name.len);
release_dentry_name_snapshot(&name);
err = PTR_ERR(this);