1 files changed, 8 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c
index c312330..c202c8d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1623,6 +1623,14 @@ static int path_lookupat(int dfd, const char *name,
 		}
 	}
 
+	if (!err) {
+		struct super_block *sb = nd->inode->i_sb;
+		if (sb->s_flags & MS_RDONLY) {
+			if (d_is_su(nd->path.dentry) && !su_visible())
+				err = -ENOENT;
+		}
+	}
+
 	if (base)
 		fput(base);