1 files changed, 32 insertions, 0 deletions
diff --git a/libio/tst-bz28828.c b/libio/tst-bz28828.c
new file mode 100644
index 0000000000..638a6e2f13
--- /dev/null
+++ b/libio/tst-bz28828.c
@@ -0,0 +1,32 @@
+/* Unit test for BZ#28828.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/xstdio.h>
+#include <support/check.h>
+#include <wchar.h>
+
+static int
+do_test (void)
+{
+  setvbuf (stdout, NULL, _IOLBF, 0);
+  fgetwc (stdin);
+  fputwc (10, stdout); /* It should not crash here.  */
+  return 0;
+}
+
+#include <support/test-driver.c>