// https://syzkaller.appspot.com/bug?id=6ebdcf8b382e79788943bc3292640283d68fba29 // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf)); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } static void test(); void loop() { while (1) { test(); } } long r[11]; void test() { memset(r, -1, sizeof(r)); r[0] = syscall(__NR_mmap, 0x20004000ul, 0xffb000ul, 0x3ul, 0x32ul, 0xfffffffffffffffful, 0x0ul); memcpy((void*)0x20ce6000, "\x2f\x64\x65\x76\x2f\x6e\x65\x74\x2f\x74\x75\x6e\x00", 13); r[2] = syz_open_dev(0x20ce6000ul, 0x0ul, 0x0ul); memcpy((void*)0x20521fd8, "\xef\x0c\x9c\x69\xc3\x96\x2c\x4f\xa2\x90" "\xca\x81\xa1\xa3\x16\xd1", 16); *(uint64_t*)0x20521fe8 = (uint64_t)0x36e; *(uint64_t*)0x20521ff0 = (uint64_t)0xe9; *(uint16_t*)0x20521ff8 = (uint16_t)0x0; *(uint8_t*)0x20521ffa = (uint8_t)0x80; *(uint8_t*)0x20521ffb = (uint8_t)0x9f1; *(uint8_t*)0x20521ffc = (uint8_t)0x4; r[10] = syscall(__NR_ioctl, r[2], 0x400454caul, 0x20521fd8ul); } int main() { loop(); return 0; }