dir.c: fix dirent leak on glob_opendir realloc failure

In glob_opendir(), each directory entry is copied before the entries
array is grown.  If growing ent->sort.entries fails, the function jumps
to the nomem label before the copied entry is stored in the array.

glob_dir_finish() only frees entries already recorded in
ent->sort.entries, so the current rdp is leaked on that error path.

Free rdp before jumping to nomem.

Signed-off-by: Mikhail Dmitrichenko <m.dmitrichenko222@gmail.com>

Author: Mikhail Dmitrichenko

dir.c

@@ -2803,8 +2803,10 @@ glob_opendir(ruby_glob_entries_t *ent, DIR *dirp, int flags, rb_encoding *enc)
             }
             if (count >= capacity) {
                 capacity += 256;
-                if (!(newp = GLOB_REALLOC_N(ent->sort.entries, capacity)))
+                if (!(newp = GLOB_REALLOC_N(ent->sort.entries, capacity))) {
+                    GLOB_FREE(rdp);
                     goto nomem;
+                }
                 ent->sort.entries = newp;
             }
             ent->sort.entries[count++] = rdp;