// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2017 Fujitsu Ltd.
 *  Ported: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
 */

/*
 * This regression test can crash the buggy kernel,
 * and the bug was fixed in:
 *
 *  commit f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61
 *  Author: David Howells <dhowells@redhat.com>
 *  Date:   Thu Oct 15 17:21:37 2015 +0100
 *
 *  KEYS: Fix crash when attempt to garbage collect
 *        an uninstantiated keyring
 */

#include <errno.h>
#include <sys/types.h>

#include "tst_test.h"
#include "lapi/keyctl.h"

static void do_test(void)
{
	key_serial_t key;

	key = add_key("user", "ltptestkey", "a", 1, KEY_SPEC_SESSION_KEYRING);
	if (key == -1)
		tst_brk(TBROK, "Failed to add key");

	request_key("keyring", "foo", "bar", KEY_SPEC_THREAD_KEYRING);

	TEST(keyctl(KEYCTL_UNLINK, key, KEY_SPEC_SESSION_KEYRING));
	if (TST_RET)
		tst_res(TFAIL | TTERRNO, "keyctl unlink failed");
	else
		tst_res(TPASS, "Bug not reproduced");
}

static struct tst_test test = {
	.test_all = do_test,
	.tags = (const struct tst_tag[]) {
		{"linux-git", "f05819df10d7"},
		{}
	}
};