| // WARNING in implement |
| // https://syzkaller.appspot.com/bug?id=d5793839fb43edad7abb5ca9b6ee902453026ae7 |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <endian.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <setjmp.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/mount.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <linux/usb/ch9.h> |
| |
| unsigned long long procid; |
| |
| static __thread int skip_segv; |
| static __thread jmp_buf segv_env; |
| |
| static void segv_handler(int sig, siginfo_t* info, void* ctx) |
| { |
| uintptr_t addr = (uintptr_t)info->si_addr; |
| const uintptr_t prog_start = 1 << 20; |
| const uintptr_t prog_end = 100 << 20; |
| if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) && |
| (addr < prog_start || addr > prog_end)) { |
| _longjmp(segv_env, 1); |
| } |
| exit(sig); |
| } |
| |
| static void install_segv_handler(void) |
| { |
| struct sigaction sa; |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_handler = SIG_IGN; |
| syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); |
| syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); |
| 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(...) \ |
| { \ |
| __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ |
| if (_setjmp(segv_env) == 0) { \ |
| __VA_ARGS__; \ |
| } \ |
| __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ |
| } |
| |
| static void sleep_ms(uint64_t ms) |
| { |
| usleep(ms * 1000); |
| } |
| |
| #define USB_DEBUG 0 |
| |
| #define USB_MAX_IFACE_NUM 4 |
| #define USB_MAX_EP_NUM 32 |
| |
| struct usb_iface_index { |
| struct usb_interface_descriptor* iface; |
| struct usb_endpoint_descriptor* eps[USB_MAX_EP_NUM]; |
| unsigned eps_num; |
| }; |
| |
| struct usb_device_index { |
| struct usb_device_descriptor* dev; |
| struct usb_config_descriptor* config; |
| unsigned config_length; |
| struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; |
| unsigned ifaces_num; |
| }; |
| |
| static bool parse_usb_descriptor(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->config_length = length - sizeof(*index->dev); |
| 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; |
| } |
| 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) |
| iface->eps[iface->eps_num++] = |
| (struct usb_endpoint_descriptor*)(buffer + offset); |
| } |
| offset += desc_length; |
| } |
| return true; |
| } |
| |
| enum usb_fuzzer_event_type { |
| USB_FUZZER_EVENT_INVALID, |
| USB_FUZZER_EVENT_CONNECT, |
| USB_FUZZER_EVENT_DISCONNECT, |
| USB_FUZZER_EVENT_SUSPEND, |
| USB_FUZZER_EVENT_RESUME, |
| USB_FUZZER_EVENT_CONTROL, |
| }; |
| |
| struct usb_fuzzer_event { |
| uint32_t type; |
| uint32_t length; |
| char data[0]; |
| }; |
| |
| struct usb_fuzzer_init { |
| uint64_t speed; |
| const char* driver_name; |
| const char* device_name; |
| }; |
| |
| struct usb_fuzzer_ep_io { |
| uint16_t ep; |
| uint16_t flags; |
| uint32_t length; |
| char data[0]; |
| }; |
| |
| #define USB_FUZZER_IOCTL_INIT _IOW('U', 0, struct usb_fuzzer_init) |
| #define USB_FUZZER_IOCTL_RUN _IO('U', 1) |
| #define USB_FUZZER_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_fuzzer_event) |
| #define USB_FUZZER_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_EP0_READ _IOWR('U', 4, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) |
| #define USB_FUZZER_IOCTL_EP_WRITE _IOW('U', 7, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_EP_READ _IOWR('U', 8, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_CONFIGURE _IO('U', 9) |
| #define USB_FUZZER_IOCTL_VBUS_DRAW _IOW('U', 10, uint32_t) |
| |
| int usb_fuzzer_open() |
| { |
| return open("/sys/kernel/debug/usb-fuzzer", O_RDWR); |
| } |
| |
| int usb_fuzzer_init(int fd, uint32_t speed, const char* driver, |
| const char* device) |
| { |
| struct usb_fuzzer_init arg; |
| arg.speed = speed; |
| arg.driver_name = driver; |
| arg.device_name = device; |
| return ioctl(fd, USB_FUZZER_IOCTL_INIT, &arg); |
| } |
| |
| int usb_fuzzer_run(int fd) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_RUN, 0); |
| } |
| |
| int usb_fuzzer_event_fetch(int fd, struct usb_fuzzer_event* event) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EVENT_FETCH, event); |
| } |
| |
| int usb_fuzzer_ep0_write(int fd, struct usb_fuzzer_ep_io* io) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP0_WRITE, io); |
| } |
| |
| int usb_fuzzer_ep0_read(int fd, struct usb_fuzzer_ep_io* io) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP0_READ, io); |
| } |
| |
| int usb_fuzzer_ep_write(int fd, struct usb_fuzzer_ep_io* io) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP_WRITE, io); |
| } |
| |
| int usb_fuzzer_ep_read(int fd, struct usb_fuzzer_ep_io* io) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP_READ, io); |
| } |
| |
| int usb_fuzzer_ep_enable(int fd, struct usb_endpoint_descriptor* desc) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP_ENABLE, desc); |
| } |
| |
| int usb_fuzzer_configure(int fd) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_CONFIGURE, 0); |
| } |
| |
| int usb_fuzzer_vbus_draw(int fd, uint32_t power) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_VBUS_DRAW, power); |
| } |
| |
| #define USB_MAX_PACKET_SIZE 1024 |
| |
| struct usb_fuzzer_control_event { |
| struct usb_fuzzer_event inner; |
| struct usb_ctrlrequest ctrl; |
| char data[USB_MAX_PACKET_SIZE]; |
| }; |
| |
| struct usb_fuzzer_ep_io_data { |
| struct usb_fuzzer_ep_io inner; |
| char data[USB_MAX_PACKET_SIZE]; |
| }; |
| |
| 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(struct vusb_connect_descriptors* descs, |
| struct usb_device_index* index, |
| struct usb_ctrlrequest* ctrl, |
| char** response_data, |
| uint32_t* response_length) |
| { |
| uint8_t str_idx; |
| 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: |
| *response_data = descs->qual; |
| *response_length = descs->qual_len; |
| return true; |
| default: |
| exit(1); |
| return false; |
| } |
| break; |
| default: |
| exit(1); |
| return false; |
| } |
| break; |
| default: |
| exit(1); |
| return false; |
| } |
| return false; |
| } |
| |
| 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; |
| char* dev = (char*)a2; |
| struct vusb_connect_descriptors* descs = (struct vusb_connect_descriptors*)a3; |
| if (!dev) { |
| return -1; |
| } |
| struct usb_device_index index; |
| memset(&index, 0, sizeof(index)); |
| int rv = 0; |
| NONFAILING(rv = parse_usb_descriptor(dev, dev_len, &index)); |
| if (!rv) { |
| return rv; |
| } |
| int fd = usb_fuzzer_open(); |
| if (fd < 0) { |
| return fd; |
| } |
| char device[32]; |
| sprintf(&device[0], "dummy_udc.%llu", procid); |
| rv = usb_fuzzer_init(fd, speed, "dummy_udc", &device[0]); |
| if (rv < 0) { |
| return rv; |
| } |
| rv = usb_fuzzer_run(fd); |
| if (rv < 0) { |
| return rv; |
| } |
| bool done = false; |
| while (!done) { |
| struct usb_fuzzer_control_event event; |
| event.inner.type = 0; |
| event.inner.length = sizeof(event.ctrl); |
| rv = usb_fuzzer_event_fetch(fd, (struct usb_fuzzer_event*)&event); |
| if (rv < 0) { |
| return rv; |
| } |
| if (event.inner.type != USB_FUZZER_EVENT_CONTROL) |
| continue; |
| bool response_found = false; |
| char* response_data = NULL; |
| uint32_t response_length = 0; |
| if (event.ctrl.bRequestType & USB_DIR_IN) { |
| NONFAILING(response_found = |
| lookup_connect_response(descs, &index, &event.ctrl, |
| &response_data, &response_length)); |
| if (!response_found) { |
| return -1; |
| } |
| } else { |
| if ((event.ctrl.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD || |
| event.ctrl.bRequest != USB_REQ_SET_CONFIGURATION) { |
| exit(1); |
| return -1; |
| } |
| done = true; |
| } |
| if (done) { |
| rv = usb_fuzzer_vbus_draw(fd, index.config->bMaxPower); |
| if (rv < 0) { |
| return rv; |
| } |
| rv = usb_fuzzer_configure(fd); |
| if (rv < 0) { |
| return rv; |
| } |
| unsigned ep; |
| for (ep = 0; ep < index.ifaces[0].eps_num; ep++) { |
| rv = usb_fuzzer_ep_enable(fd, index.ifaces[0].eps[ep]); |
| if (rv < 0) { |
| } else { |
| } |
| } |
| } |
| struct usb_fuzzer_ep_io_data response; |
| response.inner.ep = 0; |
| response.inner.flags = 0; |
| if (response_length > sizeof(response.data)) |
| response_length = 0; |
| if (event.ctrl.wLength < response_length) |
| response_length = event.ctrl.wLength; |
| response.inner.length = response_length; |
| if (response_data) |
| memcpy(&response.data[0], response_data, response_length); |
| else |
| memset(&response.data[0], 0, response_length); |
| if (event.ctrl.bRequestType & USB_DIR_IN) { |
| rv = usb_fuzzer_ep0_write(fd, (struct usb_fuzzer_ep_io*)&response); |
| } else { |
| rv = usb_fuzzer_ep0_read(fd, (struct usb_fuzzer_ep_io*)&response); |
| } |
| if (rv < 0) { |
| return rv; |
| } |
| } |
| sleep_ms(200); |
| return fd; |
| } |
| |
| struct vusb_descriptor { |
| uint8_t req_type; |
| uint8_t desc_type; |
| uint32_t len; |
| char data[0]; |
| } __attribute__((packed)); |
| |
| struct vusb_descriptors { |
| uint32_t len; |
| struct vusb_descriptor* generic; |
| struct vusb_descriptor* descs[0]; |
| } __attribute__((packed)); |
| |
| struct vusb_response { |
| uint8_t type; |
| uint8_t req; |
| uint32_t len; |
| char data[0]; |
| } __attribute__((packed)); |
| |
| struct vusb_responses { |
| uint32_t len; |
| struct vusb_response* generic; |
| struct vusb_response* resps[0]; |
| } __attribute__((packed)); |
| |
| static bool lookup_control_response(struct vusb_descriptors* descs, |
| struct vusb_responses* resps, |
| struct usb_ctrlrequest* ctrl, |
| char** response_data, |
| uint32_t* response_length) |
| { |
| int descs_num = 0; |
| int resps_num = 0; |
| if (descs) |
| descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / |
| sizeof(descs->descs[0]); |
| if (resps) |
| resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / |
| sizeof(resps->resps[0]); |
| uint8_t req = ctrl->bRequest; |
| uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; |
| uint8_t desc_type = ctrl->wValue >> 8; |
| if (req == USB_REQ_GET_DESCRIPTOR) { |
| int i; |
| for (i = 0; i < descs_num; i++) { |
| struct vusb_descriptor* desc = descs->descs[i]; |
| if (!desc) |
| continue; |
| if (desc->req_type == req_type && desc->desc_type == desc_type) { |
| *response_length = desc->len; |
| if (*response_length != 0) |
| *response_data = &desc->data[0]; |
| else |
| *response_data = NULL; |
| return true; |
| } |
| } |
| if (descs && descs->generic) { |
| *response_data = &descs->generic->data[0]; |
| *response_length = descs->generic->len; |
| return true; |
| } |
| } else { |
| int i; |
| for (i = 0; i < resps_num; i++) { |
| struct vusb_response* resp = resps->resps[i]; |
| if (!resp) |
| continue; |
| if (resp->type == req_type && resp->req == req) { |
| *response_length = resp->len; |
| if (*response_length != 0) |
| *response_data = &resp->data[0]; |
| else |
| *response_data = NULL; |
| return true; |
| } |
| } |
| if (resps && resps->generic) { |
| *response_data = &resps->generic->data[0]; |
| *response_length = resps->generic->len; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static volatile long syz_usb_control_io(volatile long a0, volatile long a1, |
| volatile long a2) |
| { |
| int fd = a0; |
| struct vusb_descriptors* descs = (struct vusb_descriptors*)a1; |
| struct vusb_responses* resps = (struct vusb_responses*)a2; |
| struct usb_fuzzer_control_event event; |
| event.inner.type = 0; |
| event.inner.length = USB_MAX_PACKET_SIZE; |
| int rv = usb_fuzzer_event_fetch(fd, (struct usb_fuzzer_event*)&event); |
| if (rv < 0) { |
| return rv; |
| } |
| if (event.inner.type != USB_FUZZER_EVENT_CONTROL) { |
| return -1; |
| } |
| bool response_found = false; |
| char* response_data = NULL; |
| uint32_t response_length = 0; |
| if (event.ctrl.bRequestType & USB_DIR_IN) { |
| NONFAILING(response_found = |
| lookup_control_response(descs, resps, &event.ctrl, |
| &response_data, &response_length)); |
| if (!response_found) { |
| return -1; |
| } |
| } else { |
| response_length = event.ctrl.wLength; |
| } |
| struct usb_fuzzer_ep_io_data response; |
| response.inner.ep = 0; |
| response.inner.flags = 0; |
| if (response_length > sizeof(response.data)) |
| response_length = 0; |
| if (event.ctrl.wLength < response_length) |
| response_length = event.ctrl.wLength; |
| response.inner.length = response_length; |
| if (response_data) |
| memcpy(&response.data[0], response_data, response_length); |
| else |
| memset(&response.data[0], 0, response_length); |
| if (event.ctrl.bRequestType & USB_DIR_IN) { |
| rv = usb_fuzzer_ep0_write(fd, (struct usb_fuzzer_ep_io*)&response); |
| } else { |
| rv = usb_fuzzer_ep0_read(fd, (struct usb_fuzzer_ep_io*)&response); |
| } |
| if (rv < 0) { |
| return rv; |
| } |
| sleep_ms(200); |
| return 0; |
| } |
| |
| static long syz_open_dev(volatile long a0, volatile long a1, volatile long 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; |
| NONFAILING(strncpy(buf, (char*)a0, sizeof(buf) - 1)); |
| buf[sizeof(buf) - 1] = 0; |
| while ((hash = strchr(buf, '#'))) { |
| *hash = '0' + (char)(a1 % 10); |
| a1 /= 10; |
| } |
| return open(buf, a2, 0); |
| } |
| } |
| |
| uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; |
| |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| install_segv_handler(); |
| intptr_t res = 0; |
| NONFAILING(*(uint8_t*)0x20000000 = 0x12); |
| NONFAILING(*(uint8_t*)0x20000001 = 1); |
| NONFAILING(*(uint16_t*)0x20000002 = 0); |
| NONFAILING(*(uint8_t*)0x20000004 = 0); |
| NONFAILING(*(uint8_t*)0x20000005 = 0); |
| NONFAILING(*(uint8_t*)0x20000006 = 0); |
| NONFAILING(*(uint8_t*)0x20000007 = 8); |
| NONFAILING(*(uint16_t*)0x20000008 = 0x926); |
| NONFAILING(*(uint16_t*)0x2000000a = 0x3333); |
| NONFAILING(*(uint16_t*)0x2000000c = 0); |
| NONFAILING(*(uint8_t*)0x2000000e = 0); |
| NONFAILING(*(uint8_t*)0x2000000f = 0); |
| NONFAILING(*(uint8_t*)0x20000010 = 0); |
| NONFAILING(*(uint8_t*)0x20000011 = 1); |
| NONFAILING(*(uint8_t*)0x20000012 = 9); |
| NONFAILING(*(uint8_t*)0x20000013 = 2); |
| NONFAILING(*(uint16_t*)0x20000014 = 0x24); |
| NONFAILING(*(uint8_t*)0x20000016 = 1); |
| NONFAILING(*(uint8_t*)0x20000017 = 0); |
| NONFAILING(*(uint8_t*)0x20000018 = 0); |
| NONFAILING(*(uint8_t*)0x20000019 = 0); |
| NONFAILING(*(uint8_t*)0x2000001a = 0); |
| NONFAILING(*(uint8_t*)0x2000001b = 9); |
| NONFAILING(*(uint8_t*)0x2000001c = 4); |
| NONFAILING(*(uint8_t*)0x2000001d = 0); |
| NONFAILING(*(uint8_t*)0x2000001e = 0); |
| NONFAILING(*(uint8_t*)0x2000001f = 9); |
| NONFAILING(*(uint8_t*)0x20000020 = 3); |
| NONFAILING(*(uint8_t*)0x20000021 = 0); |
| NONFAILING(*(uint8_t*)0x20000022 = 0); |
| NONFAILING(*(uint8_t*)0x20000023 = 0); |
| NONFAILING(*(uint8_t*)0x20000024 = 9); |
| NONFAILING(*(uint8_t*)0x20000025 = 0x21); |
| NONFAILING(*(uint16_t*)0x20000026 = 0); |
| NONFAILING(*(uint8_t*)0x20000028 = 0); |
| NONFAILING(*(uint8_t*)0x20000029 = 1); |
| NONFAILING(*(uint8_t*)0x2000002a = 0x22); |
| NONFAILING(*(uint16_t*)0x2000002b = 0x22); |
| NONFAILING(*(uint8_t*)0x2000002d = 9); |
| NONFAILING(*(uint8_t*)0x2000002e = 5); |
| NONFAILING(*(uint8_t*)0x2000002f = 0x81); |
| NONFAILING(*(uint8_t*)0x20000030 = 3); |
| NONFAILING(*(uint16_t*)0x20000031 = 0); |
| NONFAILING(*(uint8_t*)0x20000033 = 0); |
| NONFAILING(*(uint8_t*)0x20000034 = 0); |
| NONFAILING(*(uint8_t*)0x20000035 = 0); |
| res = syz_usb_connect(0, 0x36, 0x20000000, 0); |
| if (res != -1) |
| r[0] = res; |
| syz_usb_control_io(r[0], 0, 0); |
| NONFAILING(*(uint32_t*)0x20000080 = 0x2c); |
| NONFAILING(*(uint64_t*)0x20000084 = 0x20000040); |
| NONFAILING(*(uint8_t*)0x20000040 = 0); |
| NONFAILING(*(uint8_t*)0x20000041 = 0); |
| NONFAILING(*(uint32_t*)0x20000042 = 0x22); |
| NONFAILING(*(uint8_t*)0x20000046 = 0x22); |
| NONFAILING(*(uint8_t*)0x20000047 = 0); |
| NONFAILING(memcpy((void*)0x20000048, "\xbe\xdc\x2a\x54\x43\x64\x0a\x78\x9b" |
| "\xdd\x51\xea\x62\x21\xd5\x9b\xc5\x78" |
| "\x29\x0b\xb7\x55\x45\xb8\x64\x15\xf5" |
| "\x23\xb5\x46\xd3\xb9", |
| 32)); |
| NONFAILING(*(uint64_t*)0x2000008c = 0); |
| NONFAILING(*(uint64_t*)0x20000094 = 0); |
| NONFAILING(*(uint64_t*)0x2000009c = 0); |
| NONFAILING(*(uint64_t*)0x200000a4 = 0); |
| syz_usb_control_io(r[0], 0x20000080, 0); |
| NONFAILING(*(uint32_t*)0x20000180 = 3); |
| NONFAILING(*(uint32_t*)0x20000184 = 0x3f); |
| NONFAILING(*(uint32_t*)0x20000188 = 7); |
| NONFAILING(*(uint32_t*)0x2000018c = 1); |
| NONFAILING(*(uint32_t*)0x20000190 = 0x11); |
| NONFAILING(*(uint32_t*)0x20000194 = 0x8001); |
| syscall(__NR_ioctl, -1, 0x401845c0, 0x20000180); |
| NONFAILING(memcpy((void*)0x20000080, "/dev/input/event#\000", 18)); |
| syz_open_dev(0x20000080, 0xea, 0); |
| res = syz_open_dev(0, 0, 0x107d); |
| if (res != -1) |
| r[1] = res; |
| NONFAILING(memcpy((void*)0x200000c0, |
| "\x04\x7b\xc0\xe9\xeb\x44\x65\xd2\x25\xfb\x59\xc3\x6f\x17" |
| "\xe9\x44\x5f\x68\x55\x07\x60\x03\x3d\x32\x76\xa8\xb0\x23" |
| "\x91\x99\xb7\x6c\x41\x94\x88\x1d\x81\xd9\x4b\xa7\xd9\xc7" |
| "\x63\x7f\x87\x61\x3a\xe5\x15\x6a\xc2\x30\x2f\x1d\xfd\x94" |
| "\xb8\x34\xc5\xba\xea\xd9\x70\xfe\x4e\x56\x3b\x3c\x14\x4f" |
| "\x22\xc4\x15\x79\x85\x8b\x87\x7f", |
| 78)); |
| syscall(__NR_write, r[1], 0x200000c0, 0x364); |
| return 0; |
| } |
