// https://syzkaller.appspot.com/bug?id=f071ffb57ef8ca3af76ba352e8ea4e6641a69cfa // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_mmap #define SYS_mmap 197 #endif static unsigned long long procid; static __thread int clone_ongoing; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) { exit(sig); } uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) \ ({ \ int ok = 1; \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } else \ ok = 0; \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ ok; \ }) static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } struct usb_endpoint_descriptor { uint8_t bLength; uint8_t bDescriptorType; uint8_t bEndpointAddress; uint8_t bmAttributes; uint16_t wMaxPacketSize; uint8_t bInterval; uint8_t bRefresh; uint8_t bSynchAddress; } __attribute__((packed)); struct usb_device_descriptor { uint8_t bLength; uint8_t bDescriptorType; uint16_t bcdUSB; uint8_t bDeviceClass; uint8_t bDeviceSubClass; uint8_t bDeviceProtocol; uint8_t bMaxPacketSize0; uint16_t idVendor; uint16_t idProduct; uint16_t bcdDevice; uint8_t iManufacturer; uint8_t iProduct; uint8_t iSerialNumber; uint8_t bNumConfigurations; } __attribute__((packed)); struct usb_config_descriptor { uint8_t bLength; uint8_t bDescriptorType; uint16_t wTotalLength; uint8_t bNumInterfaces; uint8_t bConfigurationValue; uint8_t iConfiguration; uint8_t bmAttributes; uint8_t bMaxPower; } __attribute__((packed)); struct usb_interface_descriptor { uint8_t bLength; uint8_t bDescriptorType; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bNumEndpoints; uint8_t bInterfaceClass; uint8_t bInterfaceSubClass; uint8_t bInterfaceProtocol; uint8_t iInterface; } __attribute__((packed)); struct usb_ctrlrequest { uint8_t bRequestType; uint8_t bRequest; uint16_t wValue; uint16_t wIndex; uint16_t wLength; } __attribute__((packed)); struct usb_qualifier_descriptor { uint8_t bLength; uint8_t bDescriptorType; uint16_t bcdUSB; uint8_t bDeviceClass; uint8_t bDeviceSubClass; uint8_t bDeviceProtocol; uint8_t bMaxPacketSize0; uint8_t bNumConfigurations; uint8_t bRESERVED; } __attribute__((packed)); #define USB_TYPE_MASK (0x03 << 5) #define USB_TYPE_STANDARD (0x00 << 5) #define USB_TYPE_CLASS (0x01 << 5) #define USB_TYPE_VENDOR (0x02 << 5) #define USB_TYPE_RESERVED (0x03 << 5) #define USB_DT_DEVICE 0x01 #define USB_DT_CONFIG 0x02 #define USB_DT_STRING 0x03 #define USB_DT_INTERFACE 0x04 #define USB_DT_ENDPOINT 0x05 #define USB_DT_DEVICE_QUALIFIER 0x06 #define USB_DT_OTHER_SPEED_CONFIG 0x07 #define USB_DT_INTERFACE_POWER 0x08 #define USB_DT_OTG 0x09 #define USB_DT_DEBUG 0x0a #define USB_DT_INTERFACE_ASSOCIATION 0x0b #define USB_DT_SECURITY 0x0c #define USB_DT_KEY 0x0d #define USB_DT_ENCRYPTION_TYPE 0x0e #define USB_DT_BOS 0x0f #define USB_DT_DEVICE_CAPABILITY 0x10 #define USB_DT_WIRELESS_ENDPOINT_COMP 0x11 #define USB_DT_WIRE_ADAPTER 0x21 #define USB_DT_RPIPE 0x22 #define USB_DT_CS_RADIO_CONTROL 0x23 #define USB_DT_PIPE_USAGE 0x24 #define USB_DT_SS_ENDPOINT_COMP 0x30 #define USB_DT_SSP_ISOC_ENDPOINT_COMP 0x31 #define USB_REQ_GET_STATUS 0x00 #define USB_REQ_CLEAR_FEATURE 0x01 #define USB_REQ_SET_FEATURE 0x03 #define USB_REQ_SET_ADDRESS 0x05 #define USB_REQ_GET_DESCRIPTOR 0x06 #define USB_REQ_SET_DESCRIPTOR 0x07 #define USB_REQ_GET_CONFIGURATION 0x08 #define USB_REQ_SET_CONFIGURATION 0x09 #define USB_REQ_GET_INTERFACE 0x0A #define USB_REQ_SET_INTERFACE 0x0B #define USB_REQ_SYNCH_FRAME 0x0C #define USB_REQ_SET_SEL 0x30 #define USB_REQ_SET_ISOCH_DELAY 0x31 #define USB_REQ_SET_ENCRYPTION 0x0D #define USB_REQ_GET_ENCRYPTION 0x0E #define USB_REQ_RPIPE_ABORT 0x0E #define USB_REQ_SET_HANDSHAKE 0x0F #define USB_REQ_RPIPE_RESET 0x0F #define USB_REQ_GET_HANDSHAKE 0x10 #define USB_REQ_SET_CONNECTION 0x11 #define USB_REQ_SET_SECURITY_DATA 0x12 #define USB_REQ_GET_SECURITY_DATA 0x13 #define USB_REQ_SET_WUSB_DATA 0x14 #define USB_REQ_LOOPBACK_DATA_WRITE 0x15 #define USB_REQ_LOOPBACK_DATA_READ 0x16 #define USB_REQ_SET_INTERFACE_DS 0x17 #define USB_REQ_GET_PARTNER_PDO 20 #define USB_REQ_GET_BATTERY_STATUS 21 #define USB_REQ_SET_PDO 22 #define USB_REQ_GET_VDM 23 #define USB_REQ_SEND_VDM 24 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = {8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0}; static const char default_lang_id[] = {4, USB_DT_STRING, 0x09, 0x04}; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)( int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic( int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } static int vhci_open(void) { char path[1024]; snprintf(path, sizeof(path), "/dev/vhci%llu", procid); return open(path, O_RDWR); } static int vhci_setport(int fd, u_int port) { struct vhci_ioc_set_port args; args.port = port; return ioctl(fd, VHCI_IOC_SET_PORT, &args); } static int vhci_usb_attach(int fd) { return ioctl(fd, VHCI_IOC_USB_ATTACH, NULL); } static int vhci_usb_recv(int fd, void* buf, size_t size) { uint8_t* ptr = (uint8_t*)buf; while (1) { ssize_t done = read(fd, ptr, size); if (done < 0) return -1; if ((size_t)done == size) return 0; size -= done; ptr += done; } } static int vhci_usb_send(int fd, void* buf, size_t size) { uint8_t* ptr = (uint8_t*)buf; while (1) { ssize_t done = write(fd, ptr, size); if (done <= 0) return -1; if ((size_t)done == size) return 0; size -= done; ptr += done; } } static volatile long syz_usb_connect_impl(int fd, uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } if (vhci_setport(fd, 1)) exit(1); if (vhci_usb_attach(fd)) { return -1; } bool done = false; while (!done) { vhci_request_t req; if (vhci_usb_recv(fd, &req, sizeof(req))) { return -1; } if (req.type != VHCI_REQ_CTRL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; char data[4096]; if (req.u.ctrl.bmRequestType & UE_DIR_IN) { if (!lookup_connect_response_in( fd, descs, (const struct usb_ctrlrequest*)&req.u.ctrl, &qual, &response_data, &response_length)) { return -1; } } else { if (!lookup_connect_response_out( fd, descs, (const struct usb_ctrlrequest*)&req.u.ctrl, &done)) { return -1; } response_data = NULL; response_length = UGETW(req.u.ctrl.wLength); } if ((req.u.ctrl.bmRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && req.u.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { } if (response_length > sizeof(data)) response_length = 0; if ((uint32_t)UGETW(req.u.ctrl.wLength) < response_length) response_length = UGETW(req.u.ctrl.wLength); if (response_data) memcpy(data, response_data, response_length); else memset(data, 0, response_length); int rv = 0; if (req.u.ctrl.bmRequestType & UE_DIR_IN) { if (response_length > 0) { vhci_response_t res; res.size = response_length; rv = vhci_usb_send(fd, &res, sizeof(res)); if (rv == 0) rv = vhci_usb_send(fd, data, response_length); } } else { rv = vhci_usb_recv(fd, data, response_length); } if (rv < 0) { return -1; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; if (!dev) { return -1; } int fd = vhci_open(); if (fd < 0) exit(1); long res = syz_usb_connect_impl(fd, speed, dev_len, dev, descs, &lookup_connect_response_out_generic); close(fd); return res; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 2; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 0) break; event_timedwait(&th->done, 50 + (call == 0 ? 3000 : 0) + (call == 1 ? 3000 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } void execute_call(int call) { switch (call) { case 0: NONFAILING( memcpy((void*)0x20000180, "\x12\x01\x00\x00\xe3\x7e\xe0\x40\x44\x06\x21\x80\x26\xef\x01" "\x02\x03\x21\x09\x02\x1b\x00\x02\x00\x00\x00\x00\x09\x04\x79" "\x00\x00\xff\x82\xae\x00\x09\x04\x18\x01\x00\x10\x0e\xcd\x00", 45)); NONFAILING(syz_usb_connect(/*speed=*/0, /*dev_len=*/0x2d, /*dev=*/0x20000180, /*conn_descs=*/0)); break; case 1: NONFAILING(*(uint8_t*)0x20000540 = 0x12); NONFAILING(*(uint8_t*)0x20000541 = 1); NONFAILING(*(uint16_t*)0x20000542 = 0x201); NONFAILING(*(uint8_t*)0x20000544 = 2); NONFAILING(*(uint8_t*)0x20000545 = 0); NONFAILING(*(uint8_t*)0x20000546 = 0); NONFAILING(*(uint8_t*)0x20000547 = -1); NONFAILING(*(uint16_t*)0x20000548 = 0x525); NONFAILING(*(uint16_t*)0x2000054a = 0xa4a1); NONFAILING(*(uint16_t*)0x2000054c = 0x40); NONFAILING(*(uint8_t*)0x2000054e = 1); NONFAILING(*(uint8_t*)0x2000054f = 2); NONFAILING(*(uint8_t*)0x20000550 = 3); NONFAILING(*(uint8_t*)0x20000551 = 1); NONFAILING(*(uint8_t*)0x20000552 = 9); NONFAILING(*(uint8_t*)0x20000553 = 2); NONFAILING(*(uint16_t*)0x20000554 = 0x5d); NONFAILING(*(uint8_t*)0x20000556 = 1); NONFAILING(*(uint8_t*)0x20000557 = 1); NONFAILING(*(uint8_t*)0x20000558 = 0x30); NONFAILING(*(uint8_t*)0x20000559 = 0x50); NONFAILING(*(uint8_t*)0x2000055a = -1); NONFAILING(*(uint8_t*)0x2000055b = 9); NONFAILING(*(uint8_t*)0x2000055c = 4); NONFAILING(*(uint8_t*)0x2000055d = 0); NONFAILING(*(uint8_t*)0x2000055e = 7); NONFAILING(*(uint8_t*)0x2000055f = 3); NONFAILING(*(uint8_t*)0x20000560 = 2); NONFAILING(*(uint8_t*)0x20000561 = 6); NONFAILING(*(uint8_t*)0x20000562 = 0); NONFAILING(*(uint8_t*)0x20000563 = 9); NONFAILING(*(uint8_t*)0x20000564 = 5); NONFAILING(*(uint8_t*)0x20000565 = 0x24); NONFAILING(*(uint8_t*)0x20000566 = 6); NONFAILING(*(uint8_t*)0x20000567 = 0); NONFAILING(*(uint8_t*)0x20000568 = 0); NONFAILING(*(uint8_t*)0x20000569 = 5); NONFAILING(*(uint8_t*)0x2000056a = 0x24); NONFAILING(*(uint8_t*)0x2000056b = 0); NONFAILING(*(uint16_t*)0x2000056c = 6); NONFAILING(*(uint8_t*)0x2000056e = 0xd); NONFAILING(*(uint8_t*)0x2000056f = 0x24); NONFAILING(*(uint8_t*)0x20000570 = 0xf); NONFAILING(*(uint8_t*)0x20000571 = 1); NONFAILING(*(uint32_t*)0x20000572 = 7); NONFAILING(*(uint16_t*)0x20000576 = 8); NONFAILING(*(uint16_t*)0x20000578 = 0); NONFAILING(*(uint8_t*)0x2000057a = 0xfd); NONFAILING(*(uint8_t*)0x2000057b = 0xe); NONFAILING(*(uint8_t*)0x2000057c = 0x24); NONFAILING(*(uint8_t*)0x2000057d = 7); NONFAILING(*(uint8_t*)0x2000057e = 0); NONFAILING(*(uint16_t*)0x2000057f = 7); NONFAILING(*(uint16_t*)0x20000581 = 9); NONFAILING(*(uint16_t*)0x20000583 = 7); NONFAILING(*(uint16_t*)0x20000585 = 0x7fff); NONFAILING(*(uint16_t*)0x20000587 = 0x70a); NONFAILING(*(uint8_t*)0x20000589 = 4); NONFAILING(*(uint8_t*)0x2000058a = 0x24); NONFAILING(*(uint8_t*)0x2000058b = 2); NONFAILING(*(uint8_t*)0x2000058c = 2); NONFAILING(*(uint8_t*)0x2000058d = 4); NONFAILING(*(uint8_t*)0x2000058e = 0x24); NONFAILING(*(uint8_t*)0x2000058f = 2); NONFAILING(*(uint8_t*)0x20000590 = 0); NONFAILING(*(uint8_t*)0x20000591 = 7); NONFAILING(*(uint8_t*)0x20000592 = 0x24); NONFAILING(*(uint8_t*)0x20000593 = 0xa); NONFAILING(*(uint8_t*)0x20000594 = 0); NONFAILING(*(uint8_t*)0x20000595 = 0x7f); NONFAILING(*(uint8_t*)0x20000596 = 3); NONFAILING(*(uint8_t*)0x20000597 = 2); NONFAILING(*(uint8_t*)0x20000598 = 5); NONFAILING(*(uint8_t*)0x20000599 = 0x24); NONFAILING(*(uint8_t*)0x2000059a = 1); NONFAILING(*(uint8_t*)0x2000059b = 3); NONFAILING(*(uint8_t*)0x2000059c = 1); NONFAILING(*(uint8_t*)0x2000059d = 9); NONFAILING(*(uint8_t*)0x2000059e = 5); NONFAILING(*(uint8_t*)0x2000059f = 0x82); NONFAILING(*(uint8_t*)0x200005a0 = 2); NONFAILING(*(uint16_t*)0x200005a1 = 0x3ff); NONFAILING(*(uint8_t*)0x200005a3 = 0x1f); NONFAILING(*(uint8_t*)0x200005a4 = 0xba); NONFAILING(*(uint8_t*)0x200005a5 = 5); NONFAILING(*(uint8_t*)0x200005a6 = 9); NONFAILING(*(uint8_t*)0x200005a7 = 5); NONFAILING(*(uint8_t*)0x200005a8 = 3); NONFAILING(*(uint8_t*)0x200005a9 = 2); NONFAILING(*(uint16_t*)0x200005aa = 0); NONFAILING(*(uint8_t*)0x200005ac = 7); NONFAILING(*(uint8_t*)0x200005ad = 0x13); NONFAILING(*(uint8_t*)0x200005ae = 7); NONFAILING(syz_usb_connect(/*speed=*/3, /*dev_len=*/0x6f, /*dev=*/0x20000540, /*conn_descs=*/0)); { int i; for (i = 0; i < 32; i++) { NONFAILING(syz_usb_connect(/*speed=*/3, /*dev_len=*/0x6f, /*dev=*/0x20000540, /*conn_descs=*/0)); } } break; } } int main(void) { syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/3ul, /*flags=*/0x1012ul, /*fd=*/-1, /*pad=*/0ul, /*offset=*/0ul); install_segv_handler(); loop(); return 0; }