1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * QTest fuzzer-generated testcase for LSI53C895A device
4  *
5  * Copyright (c) Red Hat
6  */
7 
8 #include "qemu/osdep.h"
9 #include "libqtest.h"
10 
11 /*
12  * This used to trigger a UAF in lsi_do_msgout()
13  * https://gitlab.com/qemu-project/qemu/-/issues/972
14  */
15 static void test_lsi_do_msgout_cancel_req(void)
16 {
17     QTestState *s;
18 
19     if (sizeof(void *) == 4) {
20         g_test_skip("memory size too big for 32-bit build");
21         return;
22     }
23 
24     s = qtest_init("-M q35 -m 4G -display none -nodefaults "
25                    "-device lsi53c895a,id=scsi "
26                    "-device scsi-hd,drive=disk0 "
27                    "-drive file=null-co://,id=disk0,if=none,format=raw");
28 
29     qtest_outl(s, 0xcf8, 0x80000810);
30     qtest_outl(s, 0xcf8, 0xc000);
31     qtest_outl(s, 0xcf8, 0x80000810);
32     qtest_outw(s, 0xcfc, 0x7);
33     qtest_outl(s, 0xcf8, 0x80000810);
34     qtest_outl(s, 0xcfc, 0xc000);
35     qtest_outl(s, 0xcf8, 0x80000804);
36     qtest_outw(s, 0xcfc, 0x05);
37     qtest_writeb(s, 0x69736c10, 0x08);
38     qtest_writeb(s, 0x69736c13, 0x58);
39     qtest_writeb(s, 0x69736c1a, 0x01);
40     qtest_writeb(s, 0x69736c1b, 0x06);
41     qtest_writeb(s, 0x69736c22, 0x01);
42     qtest_writeb(s, 0x69736c23, 0x07);
43     qtest_writeb(s, 0x69736c2b, 0x02);
44     qtest_writeb(s, 0x69736c48, 0x08);
45     qtest_writeb(s, 0x69736c4b, 0x58);
46     qtest_writeb(s, 0x69736c52, 0x04);
47     qtest_writeb(s, 0x69736c53, 0x06);
48     qtest_writeb(s, 0x69736c5b, 0x02);
49     qtest_outl(s, 0xc02d, 0x697300);
50     qtest_writeb(s, 0x5a554662, 0x01);
51     qtest_writeb(s, 0x5a554663, 0x07);
52     qtest_writeb(s, 0x5a55466a, 0x10);
53     qtest_writeb(s, 0x5a55466b, 0x22);
54     qtest_writeb(s, 0x5a55466c, 0x5a);
55     qtest_writeb(s, 0x5a55466d, 0x5a);
56     qtest_writeb(s, 0x5a55466e, 0x34);
57     qtest_writeb(s, 0x5a55466f, 0x5a);
58     qtest_writeb(s, 0x5a345a5a, 0x77);
59     qtest_writeb(s, 0x5a345a5b, 0x55);
60     qtest_writeb(s, 0x5a345a5c, 0x51);
61     qtest_writeb(s, 0x5a345a5d, 0x27);
62     qtest_writeb(s, 0x27515577, 0x41);
63     qtest_outl(s, 0xc02d, 0x5a5500);
64     qtest_writeb(s, 0x364001d0, 0x08);
65     qtest_writeb(s, 0x364001d3, 0x58);
66     qtest_writeb(s, 0x364001da, 0x01);
67     qtest_writeb(s, 0x364001db, 0x26);
68     qtest_writeb(s, 0x364001dc, 0x0d);
69     qtest_writeb(s, 0x364001dd, 0xae);
70     qtest_writeb(s, 0x364001de, 0x41);
71     qtest_writeb(s, 0x364001df, 0x5a);
72     qtest_writeb(s, 0x5a41ae0d, 0xf8);
73     qtest_writeb(s, 0x5a41ae0e, 0x36);
74     qtest_writeb(s, 0x5a41ae0f, 0xd7);
75     qtest_writeb(s, 0x5a41ae10, 0x36);
76     qtest_writeb(s, 0x36d736f8, 0x0c);
77     qtest_writeb(s, 0x36d736f9, 0x80);
78     qtest_writeb(s, 0x36d736fa, 0x0d);
79     qtest_outl(s, 0xc02d, 0x364000);
80 
81     qtest_quit(s);
82 }
83 
84 /*
85  * This used to trigger the assert in lsi_do_dma()
86  * https://bugs.launchpad.net/qemu/+bug/697510
87  * https://bugs.launchpad.net/qemu/+bug/1905521
88  * https://bugs.launchpad.net/qemu/+bug/1908515
89  */
90 static void test_lsi_do_dma_empty_queue(void)
91 {
92     QTestState *s;
93 
94     s = qtest_init("-M q35 -nographic -monitor none -serial none "
95                    "-drive if=none,id=drive0,"
96                             "file=null-co://,file.read-zeroes=on,format=raw "
97                    "-device lsi53c895a,id=scsi0 "
98                    "-device scsi-hd,drive=drive0,"
99                             "bus=scsi0.0,channel=0,scsi-id=0,lun=0");
100     qtest_outl(s, 0xcf8, 0x80001814);
101     qtest_outl(s, 0xcfc, 0xe1068000);
102     qtest_outl(s, 0xcf8, 0x80001818);
103     qtest_outl(s, 0xcf8, 0x80001804);
104     qtest_outw(s, 0xcfc, 0x7);
105     qtest_outl(s, 0xcf8, 0x80002010);
106 
107     qtest_writeb(s, 0xe106802e, 0xff); /* Fill DSP bits 16-23 */
108     qtest_writeb(s, 0xe106802f, 0xff); /* Fill DSP bits 24-31: trigger SCRIPT */
109 
110     qtest_quit(s);
111 }
112 
113 int main(int argc, char **argv)
114 {
115     g_test_init(&argc, &argv, NULL);
116 
117     qtest_add_func("fuzz/lsi53c895a/lsi_do_dma_empty_queue",
118                    test_lsi_do_dma_empty_queue);
119 
120     qtest_add_func("fuzz/lsi53c895a/lsi_do_msgout_cancel_req",
121                    test_lsi_do_msgout_cancel_req);
122 
123     return g_test_run();
124 }
125