| // KASAN: global-out-of-bounds Read in hdpvr_probe |
| // https://syzkaller.appspot.com/bug?id=69bf3422c0eb7a37dec8c1a6c2d56ea40bf6bacf |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <dirent.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <fcntl.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/prctl.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include <linux/usb/ch9.h> |
| |
| unsigned long long procid; |
| |
| 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 bool write_file(const char* file, const char* what, ...) |
| { |
| char buf[1024]; |
| va_list args; |
| va_start(args, what); |
| vsnprintf(buf, sizeof(buf), what, args); |
| va_end(args); |
| buf[sizeof(buf) - 1] = 0; |
| int len = strlen(buf); |
| int fd = open(file, O_WRONLY | O_CLOEXEC); |
| if (fd == -1) |
| return false; |
| if (write(fd, buf, len) != len) { |
| int err = errno; |
| close(fd); |
| errno = err; |
| return false; |
| } |
| close(fd); |
| return true; |
| } |
| |
| #define USB_MAX_EP_NUM 32 |
| |
| struct usb_device_index { |
| struct usb_device_descriptor* dev; |
| struct usb_config_descriptor* config; |
| unsigned config_length; |
| struct usb_interface_descriptor* iface; |
| struct usb_endpoint_descriptor* eps[USB_MAX_EP_NUM]; |
| unsigned eps_num; |
| }; |
| |
| static bool parse_usb_descriptor(char* buffer, size_t length, |
| struct usb_device_index* index) |
| { |
| if (length < |
| sizeof(*index->dev) + sizeof(*index->config) + sizeof(*index->iface)) |
| return false; |
| index->dev = (struct usb_device_descriptor*)buffer; |
| index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); |
| index->config_length = length - sizeof(*index->dev); |
| index->iface = |
| (struct usb_interface_descriptor*)(buffer + sizeof(*index->dev) + |
| sizeof(*index->config)); |
| index->eps_num = 0; |
| size_t offset = 0; |
| while (true) { |
| if (offset == length) |
| break; |
| if (offset + 1 < length) |
| break; |
| uint8_t length = buffer[offset]; |
| uint8_t type = buffer[offset + 1]; |
| if (type == USB_DT_ENDPOINT) { |
| index->eps[index->eps_num] = |
| (struct usb_endpoint_descriptor*)(buffer + offset); |
| index->eps_num++; |
| } |
| if (index->eps_num == USB_MAX_EP_NUM) |
| break; |
| offset += 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_EP0_READ _IOWR('U', 2, struct usb_fuzzer_event) |
| #define USB_FUZZER_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_EP_ENABLE _IOW('U', 4, struct usb_endpoint_descriptor) |
| #define USB_FUZZER_IOCTL_EP_WRITE _IOW('U', 6, struct usb_fuzzer_ep_io) |
| #define USB_FUZZER_IOCTL_CONFIGURE _IO('U', 8) |
| #define USB_FUZZER_IOCTL_VBUS_DRAW _IOW('U', 9, 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_ep0_read(int fd, struct usb_fuzzer_event* event) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP0_READ, 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_ep_write(int fd, struct usb_fuzzer_ep_io* io) |
| { |
| return ioctl(fd, USB_FUZZER_IOCTL_EP_WRITE, 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; |
| }; |
| |
| 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 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, bool* done) |
| { |
| 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 (str_idx >= descs->strs_len) |
| return false; |
| *response_data = descs->strs[str_idx].str; |
| *response_length = descs->strs[str_idx].len; |
| 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; |
| case USB_REQ_SET_CONFIGURATION: |
| *response_length = 0; |
| *response_data = NULL; |
| *done = true; |
| return true; |
| 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) |
| { |
| int64_t speed = a0; |
| int64_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 = false; |
| rv = parse_usb_descriptor(dev, dev_len, &index); |
| if (!rv) |
| return -1; |
| int fd = usb_fuzzer_open(); |
| if (fd < 0) |
| return -1; |
| char device[32]; |
| sprintf(&device[0], "dummy_udc.%llu", procid); |
| rv = usb_fuzzer_init(fd, speed, "dummy_udc", &device[0]); |
| if (rv < 0) |
| return -1; |
| rv = usb_fuzzer_run(fd); |
| if (rv < 0) |
| return -1; |
| bool done = false; |
| while (!done) { |
| struct usb_fuzzer_control_event event; |
| event.inner.type = 0; |
| event.inner.length = sizeof(event.ctrl); |
| rv = usb_fuzzer_ep0_read(fd, (struct usb_fuzzer_event*)&event); |
| if (rv < 0) |
| return -1; |
| if (event.inner.type != USB_FUZZER_EVENT_CONTROL) |
| continue; |
| bool response_found = false; |
| char* response_data = NULL; |
| uint32_t response_length = 0; |
| response_found = lookup_connect_response( |
| descs, &index, &event.ctrl, &response_data, &response_length, &done); |
| if (!response_found) |
| return -1; |
| if (done) { |
| int rv = usb_fuzzer_vbus_draw(fd, index.config->bMaxPower); |
| if (rv < 0) |
| return -1; |
| rv = usb_fuzzer_configure(fd); |
| if (rv < 0) |
| return -1; |
| unsigned ep; |
| for (ep = 0; ep < index.eps_num; ep++) { |
| rv = usb_fuzzer_ep_enable(fd, index.eps[ep]); |
| if (rv < 0) |
| exit(1); |
| } |
| } |
| struct usb_fuzzer_ep_io_data response; |
| response.inner.ep = 0; |
| response.inner.flags = 0; |
| if (response_length > sizeof(response.data)) |
| response_length = 0; |
| response.inner.length = response_length; |
| if (response_data) |
| memcpy(&response.data[0], response_data, response_length); |
| if (event.ctrl.wLength < response.inner.length) |
| response.inner.length = event.ctrl.wLength; |
| usb_fuzzer_ep0_write(fd, (struct usb_fuzzer_ep_io*)&response); |
| } |
| 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_io_response(struct vusb_descriptors* descs, |
| struct vusb_responses* resps, |
| struct usb_ctrlrequest* ctrl, |
| char** response_data, |
| uint32_t* response_length) |
| { |
| int descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / |
| sizeof(descs->descs[0]); |
| int 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->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->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 = sizeof(event.ctrl); |
| int rv = usb_fuzzer_ep0_read(fd, (struct usb_fuzzer_event*)&event); |
| if (rv < 0) |
| return -1; |
| if (event.inner.type != USB_FUZZER_EVENT_CONTROL) |
| return -1; |
| bool response_found = false; |
| char* response_data = NULL; |
| uint32_t response_length = 0; |
| response_found = lookup_control_io_response(descs, resps, &event.ctrl, |
| &response_data, &response_length); |
| if (!response_found) |
| return -1; |
| struct usb_fuzzer_ep_io_data response; |
| response.inner.ep = 0; |
| response.inner.flags = 0; |
| if (response_length > sizeof(response.data)) |
| response_length = 0; |
| response.inner.length = response_length; |
| if (response_data) |
| memcpy(&response.data[0], response_data, response_length); |
| if (event.ctrl.wLength < response.inner.length) |
| response.inner.length = event.ctrl.wLength; |
| usb_fuzzer_ep0_write(fd, (struct usb_fuzzer_ep_io*)&response); |
| return 0; |
| } |
| |
| static void kill_and_wait(int pid, int* status) |
| { |
| kill(-pid, SIGKILL); |
| kill(pid, SIGKILL); |
| int i; |
| for (i = 0; i < 100; i++) { |
| if (waitpid(-1, status, WNOHANG | __WALL) == pid) |
| return; |
| usleep(1000); |
| } |
| DIR* dir = opendir("/sys/fs/fuse/connections"); |
| if (dir) { |
| for (;;) { |
| struct dirent* ent = readdir(dir); |
| if (!ent) |
| break; |
| if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) |
| continue; |
| char abort[300]; |
| snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", |
| ent->d_name); |
| int fd = open(abort, O_WRONLY); |
| if (fd == -1) { |
| continue; |
| } |
| if (write(fd, abort, 1) < 0) { |
| } |
| close(fd); |
| } |
| closedir(dir); |
| } else { |
| } |
| while (waitpid(-1, status, __WALL) != pid) { |
| } |
| } |
| |
| #define SYZ_HAVE_SETUP_TEST 1 |
| static void setup_test() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| write_file("/proc/self/oom_score_adj", "1000"); |
| } |
| |
| static void execute_one(void); |
| |
| #define WAIT_FLAGS __WALL |
| |
| static void loop(void) |
| { |
| int iter; |
| for (iter = 0;; iter++) { |
| int pid = fork(); |
| if (pid < 0) |
| exit(1); |
| if (pid == 0) { |
| setup_test(); |
| 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 < 5 * 1000) |
| continue; |
| kill_and_wait(pid, &status); |
| break; |
| } |
| } |
| } |
| |
| uint64_t r[1] = {0xffffffffffffffff}; |
| |
| void execute_one(void) |
| { |
| long res = 0; |
| *(uint8_t*)0x20000080 = 0x12; |
| *(uint8_t*)0x20000081 = 1; |
| *(uint16_t*)0x20000082 = 0; |
| *(uint8_t*)0x20000084 = 0x20; |
| *(uint8_t*)0x20000085 = 0xc5; |
| *(uint8_t*)0x20000086 = 0x2b; |
| *(uint8_t*)0x20000087 = 8; |
| *(uint16_t*)0x20000088 = 0x2040; |
| *(uint16_t*)0x2000008a = 0x4982; |
| *(uint16_t*)0x2000008c = 0xd38f; |
| *(uint8_t*)0x2000008e = 0; |
| *(uint8_t*)0x2000008f = 0; |
| *(uint8_t*)0x20000090 = 0; |
| *(uint8_t*)0x20000091 = 1; |
| *(uint8_t*)0x20000092 = 9; |
| *(uint8_t*)0x20000093 = 2; |
| *(uint16_t*)0x20000094 = 0x1b; |
| *(uint8_t*)0x20000096 = 1; |
| *(uint8_t*)0x20000097 = 0; |
| *(uint8_t*)0x20000098 = 0; |
| *(uint8_t*)0x20000099 = 0; |
| *(uint8_t*)0x2000009a = 0; |
| *(uint8_t*)0x2000009b = 9; |
| *(uint8_t*)0x2000009c = 4; |
| *(uint8_t*)0x2000009d = 0xed; |
| *(uint8_t*)0x2000009e = 0; |
| *(uint8_t*)0x2000009f = 1; |
| *(uint8_t*)0x200000a0 = 0xbe; |
| *(uint8_t*)0x200000a1 = 0x64; |
| *(uint8_t*)0x200000a2 = 0x6b; |
| *(uint8_t*)0x200000a3 = 0; |
| *(uint8_t*)0x200000a4 = 7; |
| *(uint8_t*)0x200000a5 = 5; |
| *(uint8_t*)0x200000a6 = 0x81; |
| *(uint8_t*)0x200000a7 = 0x12; |
| *(uint16_t*)0x200000a8 = 0; |
| *(uint8_t*)0x200000aa = 0; |
| *(uint8_t*)0x200000ab = 0; |
| *(uint8_t*)0x200000ac = 0; |
| res = syz_usb_connect(0, 0x2d, 0x20000080, 0); |
| if (res != -1) |
| r[0] = res; |
| *(uint32_t*)0x200003c0 = 0x34; |
| *(uint64_t*)0x200003c4 = 0; |
| *(uint64_t*)0x200003cc = 0; |
| *(uint64_t*)0x200003d4 = 0; |
| *(uint64_t*)0x200003dc = 0; |
| *(uint64_t*)0x200003e4 = 0; |
| *(uint64_t*)0x200003ec = 0; |
| *(uint32_t*)0x200007c0 = 0x54; |
| *(uint64_t*)0x200007c4 = 0x20000400; |
| *(uint8_t*)0x20000400 = 0x40; |
| *(uint8_t*)0x20000401 = 0xb; |
| *(uint32_t*)0x20000402 = 0xc1; |
| memcpy((void*)0x20000406, |
| "\x60\x1e\x3c\x20\x3d\xfb\x3f\x4d\xd2\x57\x0b\xa2\x81\xb2\x97\xea\x26" |
| "\xa9\x3f\xf1\x27\x65\x16\x01\xd0\x1c\x94\x5d\xc2\xca\xad\x22\x42\x6d" |
| "\x5b\x35\x95\x66\x00\x4b\x9e\x77\xaa\x26\xc5\xa8\x85\x77\x1c\x7b\x0f" |
| "\xf5\x12\x6f\xf1\x8c\x86\x7f\x22\xcf\x5c\xc2\x05\x3d\x7d\xf8\xf4\x10" |
| "\xaf\xa6\x3c\x2e\x9f\x12\x12\xaa\xc1\x42\xe4\xf5\xac\x5f\xbd\xd7\xe6" |
| "\xed\x63\x9c\x90\xb0\x73\xfc\x76\x56\x1d\xa4\xbf\x9d\xb8\x1e\xa9\xf1" |
| "\x1f\x2c\xff\x32\x20\xbd\xfc\x14\x9b\x6d\x99\x39\x86\xad\x6a\x2a\xc4" |
| "\x98\x1b\xbe\xb7\x2d\x1e\xbf\xca\x36\x3c\x5b\xff\x76\x7f\xe2\x0c\x36" |
| "\xca\x40\x04\x15\x9a\xf9\x9e\x7f\x90\xd1\x98\xae\xa3\x82\x88\xdd\x55" |
| "\x90\xc2\xfe\x25\x67\x15\x60\x3b\x3f\xd5\xb4\x75\x56\x11\x5a\x9b\xde" |
| "\x07\xba\x91\xe1\x39\x97\x9b\xc0\x59\x44\x99\x1b\xd7\x5e\xe8\x85\x0f" |
| "\xca\xc4\x81\xcc\x6a\x01", |
| 193); |
| *(uint64_t*)0x200007cc = 0; |
| *(uint64_t*)0x200007d4 = 0; |
| *(uint64_t*)0x200007dc = 0; |
| *(uint64_t*)0x200007e4 = 0; |
| *(uint64_t*)0x200007ec = 0; |
| *(uint64_t*)0x200007f4 = 0; |
| *(uint64_t*)0x200007fc = 0; |
| *(uint64_t*)0x20000804 = 0; |
| *(uint64_t*)0x2000080c = 0; |
| syz_usb_control_io(r[0], 0x200003c0, 0x200007c0); |
| *(uint32_t*)0x20000240 = 0x34; |
| *(uint64_t*)0x20000244 = 0; |
| *(uint64_t*)0x2000024c = 0; |
| *(uint64_t*)0x20000254 = 0; |
| *(uint64_t*)0x2000025c = 0; |
| *(uint64_t*)0x20000264 = 0; |
| *(uint64_t*)0x2000026c = 0; |
| *(uint32_t*)0x200005c0 = 0x54; |
| *(uint64_t*)0x200005c4 = 0x20000280; |
| *(uint8_t*)0x20000280 = 0; |
| *(uint8_t*)0x20000281 = 0; |
| *(uint32_t*)0x20000282 = 0x2e; |
| memcpy((void*)0x20000286, "\xc1\x7f\x11\xe0\x5b\x40\xbb\x2e\x0a\x33\xbb\xbb" |
| "\xb7\x39\x1f\x9a\x27\x80\x41\xb1\x2e\x65\x29\x2c" |
| "\x7a\xe5\x21\x49\x92\x53\xfc\xdf\x98\xce\x16\xac" |
| "\xf8\x42\xea\x1a\xe2\xdb\x27\xc0\x65\x6e", |
| 46); |
| *(uint64_t*)0x200005cc = 0; |
| *(uint64_t*)0x200005d4 = 0; |
| *(uint64_t*)0x200005dc = 0; |
| *(uint64_t*)0x200005e4 = 0; |
| *(uint64_t*)0x200005ec = 0; |
| *(uint64_t*)0x200005f4 = 0; |
| *(uint64_t*)0x200005fc = 0; |
| *(uint64_t*)0x20000604 = 0; |
| *(uint64_t*)0x2000060c = 0; |
| syz_usb_control_io(r[0], 0x20000240, 0x200005c0); |
| syz_usb_control_io(r[0], 0, 0); |
| } |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| loop(); |
| return 0; |
| } |