// https://syzkaller.appspot.com/bug?id=9e8269e9804bab3f17b36daf13ee7f49ee9dc003
// 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>

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_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;
}

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));

typedef bool (*lookup_connect_out_response_t)(
    int fd, const struct vusb_connect_descriptors* descs,
    const struct usb_ctrlrequest* ctrl, bool* done);

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(const struct vusb_descriptors* descs,
                                    const 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;
}

#define UDC_NAME_LENGTH_MAX 128

struct usb_raw_init {
  __u8 driver_name[UDC_NAME_LENGTH_MAX];
  __u8 device_name[UDC_NAME_LENGTH_MAX];
  __u8 speed;
};

enum usb_raw_event_type {
  USB_RAW_EVENT_INVALID = 0,
  USB_RAW_EVENT_CONNECT = 1,
  USB_RAW_EVENT_CONTROL = 2,
};

struct usb_raw_event {
  __u32 type;
  __u32 length;
  __u8 data[0];
};

struct usb_raw_ep_io {
  __u16 ep;
  __u16 flags;
  __u32 length;
  __u8 data[0];
};

#define USB_RAW_EPS_NUM_MAX 30
#define USB_RAW_EP_NAME_MAX 16
#define USB_RAW_EP_ADDR_ANY 0xff

struct usb_raw_ep_caps {
  __u32 type_control : 1;
  __u32 type_iso : 1;
  __u32 type_bulk : 1;
  __u32 type_int : 1;
  __u32 dir_in : 1;
  __u32 dir_out : 1;
};

struct usb_raw_ep_limits {
  __u16 maxpacket_limit;
  __u16 max_streams;
  __u32 reserved;
};

struct usb_raw_ep_info {
  __u8 name[USB_RAW_EP_NAME_MAX];
  __u32 addr;
  struct usb_raw_ep_caps caps;
  struct usb_raw_ep_limits limits;
};

struct usb_raw_eps_info {
  struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX];
};

#define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init)
#define USB_RAW_IOCTL_RUN _IO('U', 1)
#define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event)
#define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor)
#define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32)
#define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_CONFIGURE _IO('U', 9)
#define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32)
#define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info)
#define USB_RAW_IOCTL_EP0_STALL _IO('U', 12)
#define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32)
#define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32)
#define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32)

static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io);
}

static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io);
}

static int usb_raw_event_fetch(int fd, struct usb_raw_event* event)
{
  return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event);
}

static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc)
{
  return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc);
}

static int usb_raw_ep_disable(int fd, int ep)
{
  return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep);
}

static int usb_raw_ep0_stall(int fd)
{
  return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0);
}

static int lookup_interface(int fd, uint8_t bInterfaceNumber,
                            uint8_t bAlternateSetting)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  if (!index)
    return -1;
  for (int i = 0; i < index->ifaces_num; i++) {
    if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber &&
        index->ifaces[i].bAlternateSetting == bAlternateSetting)
      return i;
  }
  return -1;
}

#define USB_MAX_PACKET_SIZE 4096

struct usb_raw_control_event {
  struct usb_raw_event inner;
  struct usb_ctrlrequest ctrl;
  char data[USB_MAX_PACKET_SIZE];
};

struct usb_raw_ep_io_data {
  struct usb_raw_ep_io inner;
  char data[USB_MAX_PACKET_SIZE];
};

static void set_interface(int fd, int n)
{
  struct usb_device_index* index = lookup_usb_index(fd);
  if (!index)
    return;
  if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) {
    for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) {
      int rv = usb_raw_ep_disable(
          fd, index->ifaces[index->iface_cur].eps[ep].handle);
      if (rv < 0) {
      } else {
      }
    }
  }
  if (n >= 0 && n < index->ifaces_num) {
    for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) {
      int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc);
      if (rv < 0) {
      } else {
        index->ifaces[n].eps[ep].handle = rv;
      }
    }
    index->iface_cur = n;
  }
}

static volatile long syz_usb_control_io(volatile long a0, volatile long a1,
                                        volatile long a2)
{
  int fd = a0;
  const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1;
  const struct vusb_responses* resps = (const struct vusb_responses*)a2;
  struct usb_raw_control_event event;
  event.inner.type = 0;
  event.inner.length = USB_MAX_PACKET_SIZE;
  int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event);
  if (rv < 0) {
    return rv;
  }
  if (event.inner.type != USB_RAW_EVENT_CONTROL) {
    return -1;
  }
  char* response_data = NULL;
  uint32_t response_length = 0;
  if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) {
    if (!lookup_control_response(descs, resps, &event.ctrl, &response_data,
                                 &response_length)) {
      usb_raw_ep0_stall(fd);
      return -1;
    }
  } else {
    if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD ||
        event.ctrl.bRequest == USB_REQ_SET_INTERFACE) {
      int iface_num = event.ctrl.wIndex;
      int alt_set = event.ctrl.wValue;
      int iface_index = lookup_interface(fd, iface_num, alt_set);
      if (iface_index < 0) {
      } else {
        set_interface(fd, iface_index);
      }
    }
    response_length = event.ctrl.wLength;
  }
  struct usb_raw_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;
  if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) {
    response_length = USB_MAX_PACKET_SIZE;
  }
  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) && event.ctrl.wLength) {
    rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response);
  } else {
    rv = usb_raw_ep0_read(fd, (struct usb_raw_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 {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2 & ~O_CREAT, 0);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int 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) {
  }
}

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 = 0;
  for (;; 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 (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0,
                 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socketpair$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //    fds: ptr[out, unix_pair] {
  //      unix_pair {
  //        fd0: sock_unix (resource)
  //        fd1: sock_unix (resource)
  //      }
  //    }
  //  ]
  res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0, /*fds=*/0x2000000000c0ul);
  if (res != -1) {
    r[0] = *(uint32_t*)0x2000000000c0;
    r[1] = *(uint32_t*)0x2000000000c4;
  }
  //  getpgid arguments: [
  //    pid: pid (resource)
  //  ]
  //  returns pid
  res = syscall(__NR_getpgid, /*pid=*/0);
  if (res != -1)
    r[2] = res;
  //  fcntl$setownex arguments: [
  //    fd: fd (resource)
  //    cmd: const = 0xf (8 bytes)
  //    arg: ptr[in, f_owner_ex] {
  //      f_owner_ex {
  //        type: f_owner_type = 0x2 (4 bytes)
  //        pid: pid (resource)
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000140 = 2;
  *(uint32_t*)0x200000000144 = r[2];
  syscall(__NR_fcntl, /*fd=*/r[1], /*cmd=*/0xful, /*arg=*/0x200000000140ul);
  //  sendmmsg$unix arguments: [
  //    fd: sock_unix (resource)
  //    mmsg: ptr[in, array[send_mmsghdr_un]] {
  //      array[send_mmsghdr_un] {
  //        send_mmsghdr_un {
  //          msg_hdr: send_msghdr_un {
  //            addr: nil
  //            addrlen: len = 0x0 (4 bytes)
  //            pad = 0x0 (4 bytes)
  //            vec: ptr[in, array[iovec[in, array[int8]]]] {
  //              array[iovec[in, array[int8]]] {
  //                iovec[in, array[int8]] {
  //                  addr: ptr[in, buffer] {
  //                    buffer: {11} (length 0x1)
  //                  }
  //                  len: len = 0x1 (8 bytes)
  //                }
  //              }
  //            }
  //            vlen: len = 0x1 (8 bytes)
  //            ctrl: nil
  //            ctrllen: bytesize = 0x0 (8 bytes)
  //            f: send_flags = 0x0 (4 bytes)
  //            pad = 0x0 (4 bytes)
  //          }
  //          msg_len: const = 0x0 (4 bytes)
  //          pad = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    vlen: len = 0x1 (8 bytes)
  //    f: send_flags = 0x40015 (8 bytes)
  //  ]
  *(uint64_t*)0x200000006c40 = 0;
  *(uint32_t*)0x200000006c48 = 0;
  *(uint64_t*)0x200000006c50 = 0x200000000080;
  *(uint64_t*)0x200000000080 = 0x200000000300;
  memset((void*)0x200000000300, 17, 1);
  *(uint64_t*)0x200000000088 = 1;
  *(uint64_t*)0x200000006c58 = 1;
  *(uint64_t*)0x200000006c60 = 0;
  *(uint64_t*)0x200000006c68 = 0;
  *(uint32_t*)0x200000006c70 = 0;
  *(uint32_t*)0x200000006c78 = 0;
  syscall(__NR_sendmmsg, /*fd=*/r[0], /*mmsg=*/0x200000006c40ul, /*vlen=*/1ul,
          /*f=MSG_BATCH|MSG_PROBE|MSG_OOB|MSG_DONTROUTE*/ 0x40015ul);
  //  syz_usb_control_io$cdc_ncm arguments: [
  //    fd: fd_usb_cdc_ncm (resource)
  //    descs: nil
  //    resps: ptr[in, vusb_responses_cdc_ncm] {
  //      vusb_responses_cdc_ncm {
  //        len: len = 0x44 (4 bytes)
  //        generic: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {40 01} (length 0x2)
  //            }
  //          }
  //        }
  //        USB_REQ_GET_INTERFACE: nil
  //        USB_REQ_GET_CONFIGURATION: nil
  //        USB_CDC_GET_NTB_PARAMETERS: nil
  //        USB_CDC_GET_NTB_INPUT_SIZE: nil
  //        USB_CDC_GET_NTB_FORMAT: nil
  //        USB_CDC_GET_MAX_DATAGRAM_SIZE: nil
  //        USB_CDC_GET_CRC_MODE: nil
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000440 = 0x44;
  *(uint64_t*)0x200000000444 = 0x200000000240;
  memcpy((void*)0x200000000240, "\x40\x01", 2);
  *(uint64_t*)0x20000000044c = 0;
  *(uint64_t*)0x200000000454 = 0;
  *(uint64_t*)0x20000000045c = 0;
  *(uint64_t*)0x200000000464 = 0;
  *(uint64_t*)0x20000000046c = 0;
  *(uint64_t*)0x200000000474 = 0;
  *(uint64_t*)0x20000000047c = 0;
  syz_usb_control_io(/*fd=*/-1, /*descs=*/0, /*resps=*/0x200000000440);
  //  syz_open_dev$evdev arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 69 6e 70 75 74 2f 65 76 65 6e 74 23 00}
  //      (length 0x12)
  //    }
  //    id: intptr = 0x0 (8 bytes)
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_evdev
  memcpy((void*)0x200000001540, "/dev/input/event#\000", 18);
  res = -1;
  res = syz_open_dev(/*dev=*/0x200000001540, /*id=*/0, /*flags=*/0);
  if (res != -1)
    r[3] = res;
  //  ioctl$EVIOCGLED arguments: [
  //    fd: fd_evdev (resource)
  //    cmd: const = 0x5452 (4 bytes)
  //    arg: ptr[out, buffer] {
  //      buffer: (DirOut)
  //    }
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x5452, /*arg=*/0x200000000240ul);
  //  ioctl$EVIOCSFF arguments: [
  //    fd: fd_evdev (resource)
  //    cmd: const = 0x40304580 (4 bytes)
  //    arg: ptr[in, ff_effect] {
  //      ff_effect {
  //        type: ff_effect_type = 0x57 (2 bytes)
  //        id: int16 = 0x0 (2 bytes)
  //        dir: int16 = 0x0 (2 bytes)
  //        trigger: ff_trigger {
  //          button: int16 = 0xfffe (2 bytes)
  //          interv: int16 = 0x1 (2 bytes)
  //        }
  //        replay: ff_replay {
  //          len: int16 = 0x74 (2 bytes)
  //          delay: int16 = 0x2 (2 bytes)
  //        }
  //        pad = 0x0 (2 bytes)
  //        u: union ff_effect_u {
  //          const: ff_constant_effect {
  //            level: int16 = 0x6 (2 bytes)
  //            envelop: ff_envelope {
  //              len: int16 = 0x7f (2 bytes)
  //              level: int16 = 0x0 (2 bytes)
  //              flen: int16 = 0x8000 (2 bytes)
  //              flevel: int16 = 0xfffd (2 bytes)
  //            }
  //          }
  //        }
  //      }
  //    }
  //  ]
  *(uint16_t*)0x200000000180 = 0x57;
  *(uint16_t*)0x200000000182 = 0;
  *(uint16_t*)0x200000000184 = 0;
  *(uint16_t*)0x200000000186 = 0xfffe;
  *(uint16_t*)0x200000000188 = 1;
  *(uint16_t*)0x20000000018a = 0x74;
  *(uint16_t*)0x20000000018c = 2;
  *(uint16_t*)0x200000000190 = 6;
  *(uint16_t*)0x200000000192 = 0x7f;
  *(uint16_t*)0x200000000194 = 0;
  *(uint16_t*)0x200000000196 = 0x8000;
  *(uint16_t*)0x200000000198 = 0xfffd;
  syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x40304580,
          /*arg=*/0x200000000180ul);
  //  syz_open_dev$evdev arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 69 6e 70 75 74 2f 65 76 65 6e 74 23 00}
  //      (length 0x12)
  //    }
  //    id: intptr = 0x78 (8 bytes)
  //    flags: open_flags = 0x822b01 (8 bytes)
  //  ]
  //  returns fd_evdev
  memcpy((void*)0x2000000000c0, "/dev/input/event#\000", 18);
  res = -1;
  res = syz_open_dev(
      /*dev=*/0x2000000000c0, /*id=*/0x78,
      /*flags=O_TRUNC|O_NONBLOCK|O_NOFOLLOW|O_NOCTTY|FASYNC|O_WRONLY|0x800000*/
      0x822b01);
  if (res != -1)
    r[4] = res;
  //  write$char_usb arguments: [
  //    fd: fd_char_usb (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {e2} (length 0x1)
  //    }
  //    count: len = 0x1068 (8 bytes)
  //  ]
  memset((void*)0x200000000040, 226, 1);
  syscall(__NR_write, /*fd=*/r[4], /*buf=*/0x200000000040ul,
          /*count=*/0x1068ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}