| 1 | /* |
| 2 | * QTest fuzzer-generated testcase for megasas device |
| 3 | * |
| 4 | * Copyright (c) 2020 Li Qiang <liq3ea@gmail.com> |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | */ |
| 9 | |
| 10 | #include "qemu/osdep.h" |
| 11 | |
| 12 | #include "libqtest.h" |
| 13 | |
| 14 | /* |
| 15 | * This used to trigger the assert in scsi_dma_complete |
| 16 | * https://bugs.launchpad.net/qemu/+bug/1878263 |
| 17 | */ |
| 18 | static void test_lp1878263_megasas_zero_iov_cnt(void) |
| 19 | { |
| 20 | QTestState *s; |
| 21 | |
| 22 | s = qtest_init("-nographic -monitor none -serial none " |
| 23 | "-M q35 -device megasas -device scsi-cd,drive=null0 " |
| 24 | "-blockdev driver=null-co,read-zeroes=on,node-name=null0"); |
| 25 | qtest_outl(s, 0xcf8, 0x80001818); |
| 26 | qtest_outl(s, 0xcfc, 0xc101); |
| 27 | qtest_outl(s, 0xcf8, 0x8000181c); |
| 28 | qtest_outl(s, 0xcf8, 0x80001804); |
| 29 | qtest_outw(s, 0xcfc, 0x7); |
| 30 | qtest_outl(s, 0xcf8, 0x8000186a); |
| 31 | qtest_writeb(s, 0x14, 0xfe); |
| 32 | qtest_writeb(s, 0x0, 0x02); |
| 33 | qtest_outb(s, 0xc1c0, 0x17); |
| 34 | qtest_quit(s); |
| 35 | } |
| 36 | |
| 37 | /* |
| 38 | * Overflow SGL buffer. |
| 39 | * https://gitlab.com/qemu-project/qemu/-/issues/521 |
| 40 | */ |
| 41 | static void test_gitlab_issue521_megasas_sgl_ovf(void) |
| 42 | { |
| 43 | QTestState *s = qtest_init("-m 32M -machine q35 " |
| 44 | "-nodefaults -device megasas " |
| 45 | "-device scsi-cd,drive=null0 " |
| 46 | "-blockdev " |
| 47 | "driver=null-co,read-zeroes=on,node-name=null0"); |
| 48 | qtest_outl(s, 0xcf8, 0x80000818); |
| 49 | qtest_outl(s, 0xcfc, 0xc000); |
| 50 | qtest_outl(s, 0xcf8, 0x80000804); |
| 51 | qtest_outw(s, 0xcfc, 0x05); |
| 52 | qtest_bufwrite(s, 0x0, "\x01", 0x1); |
| 53 | qtest_bufwrite(s, 0x7, "\x01", 0x1); |
| 54 | qtest_bufwrite(s, 0x10, "\x02", 0x1); |
| 55 | qtest_bufwrite(s, 0x16, "\x01", 0x1); |
| 56 | qtest_bufwrite(s, 0x28, "\x01", 0x1); |
| 57 | qtest_bufwrite(s, 0x33, "\x01", 0x1); |
| 58 | qtest_outb(s, 0xc040, 0x0); |
| 59 | qtest_outb(s, 0xc040, 0x20); |
| 60 | qtest_outl(s, 0xc040, 0x20000000); |
| 61 | qtest_outb(s, 0xc040, 0x20); |
| 62 | qtest_quit(s); |
| 63 | } |
| 64 | |
| 65 | int main(int argc, char **argv) |
| 66 | { |
| 67 | g_test_init(&argc, &argv, NULL); |
| 68 | |
| 69 | qtest_add_func("fuzz/test_lp1878263_megasas_zero_iov_cnt", |
| 70 | test_lp1878263_megasas_zero_iov_cnt); |
| 71 | qtest_add_func("fuzz/gitlab_issue521_megasas_sgl_ovf", |
| 72 | test_gitlab_issue521_megasas_sgl_ovf); |
| 73 | |
| 74 | return g_test_run(); |
| 75 | } |