tests/qtest/fuzz-virtio-balloon-test.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

/*
 * QTest fuzzer-generated testcase for virtio balloon device
 *
 * Copyright (c) 2024 Gao Shiyuan <gaoshiyuan@baidu.com>
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "qemu/osdep.h"
#include "libqtest.h"

/*
 * https://gitlab.com/qemu-project/qemu/-/issues/2576
 * Used to trigger:
 *   virtio_address_space_lookup: Assertion `mrs.mr' failed.
 */
static void oss_fuzz_71649(void)
{
    QTestState *s = qtest_init("-device virtio-balloon -machine q35"
                               " -nodefaults");

    qtest_outl(s, 0xcf8, 0x80000890);
    qtest_outl(s, 0xcfc, 0x2);
    qtest_outl(s, 0xcf8, 0x80000891);
    qtest_inl(s, 0xcfc);
    qtest_quit(s);
}

int main(int argc, char **argv)
{
    g_test_init(&argc, &argv, NULL);

    qtest_add_func("fuzz/virtio/oss_fuzz_71649", oss_fuzz_71649);

    return g_test_run();
}