// https://syzkaller.appspot.com/bug?id=401730da81cc65b97da6fa48aa9c0d392463f1b5
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <errno.h>
#include <fcntl.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void exitf(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit(kRetryStatus);
}

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;
}

static int inject_fault(int nth)
{
  int fd;
  char buf[16];

  fd = open("/proc/thread-self/fail-nth", O_RDWR);
  if (fd == -1)
    exitf("failed to open /proc/thread-self/fail-nth");
  sprintf(buf, "%d", nth + 1);
  if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf))
    exitf("failed to write /proc/thread-self/fail-nth");
  return fd;
}

static void execute_one();
extern unsigned long long procid;

void loop()
{
  while (1) {
    execute_one();
  }
}

uint64_t r[1] = {0xffffffffffffffff};
void execute_one()
{
  long res = 0;
  res = syscall(__NR_socket, 0xa, 0x408000000001, 0x84);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20cf6fe4 = 0xa;
  *(uint16_t*)0x20cf6fe6 = htobe16(0x4e23);
  *(uint32_t*)0x20cf6fe8 = 0;
  *(uint64_t*)0x20cf6fec = htobe64(0);
  *(uint64_t*)0x20cf6ff4 = htobe64(1);
  *(uint32_t*)0x20cf6ffc = 0;
  syscall(__NR_setsockopt, r[0], 0x84, 0x64, 0x20cf6fe4, 0x1c);
  *(uint16_t*)0x208c0000 = 0xa;
  *(uint16_t*)0x208c0002 = htobe16(0x4e23);
  *(uint32_t*)0x208c0004 = 0;
  *(uint64_t*)0x208c0008 = htobe64(0);
  *(uint64_t*)0x208c0010 = htobe64(1);
  *(uint32_t*)0x208c0018 = 0;
  syscall(__NR_connect, r[0], 0x208c0000, 0x1c);
  *(uint64_t*)0x20007c00 = 0;
  *(uint32_t*)0x20007c08 = 0;
  *(uint64_t*)0x20007c10 = 0x200016c0;
  *(uint64_t*)0x200016c0 = 0x20001600;
  memcpy((void*)0x20001600, "\x19", 1);
  *(uint64_t*)0x200016c8 = 1;
  *(uint64_t*)0x20007c18 = 1;
  *(uint64_t*)0x20007c20 = 0x20001740;
  *(uint64_t*)0x20007c28 = 0;
  *(uint32_t*)0x20007c30 = 0;
  *(uint32_t*)0x20007c38 = 0;
  *(uint64_t*)0x20007c40 = 0x20004800;
  *(uint16_t*)0x20004800 = 0x18;
  *(uint32_t*)0x20004802 = 1;
  *(uint32_t*)0x20004806 = 0;
  *(uint32_t*)0x2000480a = -1;
  *(uint32_t*)0x2000480e = 0;
  *(uint32_t*)0x20004812 = 0;
  *(uint32_t*)0x20004816 = 0;
  *(uint32_t*)0x2000481a = 0;
  *(uint16_t*)0x2000481e = 0xa;
  *(uint16_t*)0x20004820 = htobe16(0);
  *(uint32_t*)0x20004822 = 0;
  *(uint8_t*)0x20004826 = -1;
  *(uint8_t*)0x20004827 = 1;
  *(uint8_t*)0x20004828 = 0;
  *(uint8_t*)0x20004829 = 0;
  *(uint8_t*)0x2000482a = 0;
  *(uint8_t*)0x2000482b = 0;
  *(uint8_t*)0x2000482c = 0;
  *(uint8_t*)0x2000482d = 0;
  *(uint8_t*)0x2000482e = 0;
  *(uint8_t*)0x2000482f = 0;
  *(uint8_t*)0x20004830 = 0;
  *(uint8_t*)0x20004831 = 0;
  *(uint8_t*)0x20004832 = 0;
  *(uint8_t*)0x20004833 = 0;
  *(uint8_t*)0x20004834 = 0;
  *(uint8_t*)0x20004835 = 1;
  *(uint32_t*)0x20004836 = 0;
  *(uint32_t*)0x20007c48 = 0x80;
  *(uint64_t*)0x20007c50 = 0x20004880;
  *(uint64_t*)0x20007c58 = 0;
  *(uint64_t*)0x20007c60 = 0x200048c0;
  *(uint64_t*)0x20007c68 = 0;
  *(uint32_t*)0x20007c70 = 0;
  *(uint32_t*)0x20007c78 = 0;
  write_file("/sys/kernel/debug/failslab/ignore-gfp-wait", "N");
  write_file("/sys/kernel/debug/fail_futex/ignore-private", "N");
  inject_fault(0);
  syscall(__NR_sendmmsg, r[0], 0x20007c00, 2, 0);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    loop();
  }
}