// https://syzkaller.appspot.com/bug?id=7b7a239a2c5d9a817aa392e15cb4526df0e67437
// 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 <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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>

#ifndef __NR_pidfd_open
#define __NR_pidfd_open 434
#endif

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;
}

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 long syz_pidfd_open(volatile long pid, volatile long flags)
{
  if (pid == 1) {
    pid = 0;
  }
  return syscall(__NR_pidfd_open, pid, flags);
}

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[6] = {0x0,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  res = syscall(__NR_getpid);
  if (res != -1)
    r[0] = res;
  res = -1;
  res = syz_pidfd_open(/*pid=*/r[0], /*flags=*/0);
  if (res != -1)
    r[1] = res;
  syscall(__NR_setns, /*fd=*/r[1],
          /*type=CLONE_NEWPID|CLONE_NEWNS|CLONE_NEWUTS*/ 0x24020000ul);
  res = syscall(__NR_pipe2, /*pipefd=*/0x400000001900ul, /*flags=*/0ul);
  if (res != -1) {
    r[2] = *(uint32_t*)0x400000001900;
    r[3] = *(uint32_t*)0x400000001904;
  }
  memcpy((void*)0x400000000500,
         "\x15\x00\x00\x00\x65\xff\xff\x04\x80\x00\x00\x08\x00\x39\x50\x32\x30"
         "\x30\x30",
         19);
  syscall(__NR_write, /*fd=*/r[3], /*data=*/0x400000000500ul, /*size=*/0x15ul);
  res = syscall(__NR_dup, /*oldfd=*/r[3]);
  if (res != -1)
    r[4] = res;
  *(uint32_t*)0x400000000100 = 0x18;
  *(uint32_t*)0x400000000104 = 0;
  *(uint64_t*)0x400000000108 = 0;
  *(uint64_t*)0x400000000110 = 0;
  syscall(__NR_write, /*fd=*/r[4], /*arg=*/0x400000000100ul, /*len=*/0x18ul);
  *(uint32_t*)0x4000000000c0 = 0x14c;
  *(uint32_t*)0x4000000000c4 = 5;
  *(uint64_t*)0x4000000000c8 = 0;
  *(uint64_t*)0x4000000000d0 = 0;
  *(uint64_t*)0x4000000000d8 = 0;
  *(uint64_t*)0x4000000000e0 = 0;
  *(uint32_t*)0x4000000000e8 = 0;
  *(uint32_t*)0x4000000000ec = 0;
  syscall(__NR_write, /*fd=*/r[4], /*arg=*/0x4000000000c0ul, /*len=*/0x137ul);
  memcpy((void*)0x400000000000, "./file0\000", 8);
  memcpy((void*)0x400000000040, "9p\000", 3);
  memcpy((void*)0x400000000280, "trans=fd,", 9);
  memcpy((void*)0x400000000289, "rfdno", 5);
  *(uint8_t*)0x40000000028e = 0x3d;
  sprintf((char*)0x40000000028f, "0x%016llx", (long long)r[2]);
  *(uint8_t*)0x4000000002a1 = 0x2c;
  memcpy((void*)0x4000000002a2, "wfdno", 5);
  *(uint8_t*)0x4000000002a7 = 0x3d;
  sprintf((char*)0x4000000002a8, "0x%016llx", (long long)r[4]);
  *(uint8_t*)0x4000000002ba = 0x2c;
  *(uint8_t*)0x4000000002bb = 0x6b;
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x400000000000ul,
          /*type=*/0x400000000040ul, /*flags=*/0ul, /*opts=*/0x400000000280ul);
  memcpy((void*)0x400000000140, "./file0\000", 8);
  syscall(__NR_chmod, /*file=*/0x400000000140ul, /*mode=*/0ul);
  memcpy((void*)0x400000000300, "./file0\000", 8);
  res = syscall(__NR_creat, /*file=*/0x400000000300ul, /*mode=*/0ul);
  if (res != -1)
    r[5] = res;
  *(uint32_t*)0x400000000540 = 8;
  memcpy(
      (void*)0x400000000544,
      "\x1a\x17\x92\x4a\xb2\x18\xea\xcb\x15\xa3\xfc\xcf\x92\x9e\x2d\xd2\x49\x79"
      "\x03\xc1\xf8\x53\xd9\x5b\x99\x5c\x65\xe9\x94\x49\xff\x95\x3f\xa1\x1c\x77"
      "\x23\xb2\x14\x9e\xcd\xaa\x7f\x83\x3f\x60\xe1\x3b\x19\xa6\x6e\x96\x3f\x7e"
      "\x8d\xa4\x29\x7e\xbb\xfd\xda\x5b\x36\xfb\x4d\x01\xbd\x02\xe6\xc6\x52\xdc"
      "\x4d\x99\xe2\xcb\x82\xc2\xa1\xd4\xa4\x5e\x4c\x89\xba\x99\x94\xe8\x2f\x85"
      "\x4b\xbc\x34\xa4\x0b\x3a\x58\xaa\x25\x6c\x9b\x45\x12\xfb\xf9\x1b\x98\x46"
      "\x44\x6c\x49\x09\xe4\xec\x53\x98\x2e\x7d\x7f\xd1\x1e\xe0\xbd\xea\xb0\xbb"
      "\x4c\x46\x9c\x96\x65\xdd\xe8\xcb\x58\xf0\xca\x14\x82\x23\xb6\xcc\x4e\x2f"
      "\x30\x6c\xfb\xec\xce\xde\xc8\xdb\x52\x12\xf2\xfc\x4e\x14\xf8\x36\xc6\x8b"
      "\xda\xce\x4d\xb1\xaf\xbd\xe9\xd4\x63\xe5\xac\x24\x56\x79\x25\xb5\xfd\xf0"
      "\xe3\xaf\x1a\x52\xdb\xd7\x66\x9f\xe9\x22\x73\x02\xc8\xf6\x35\xbc\x2d\xdb"
      "\xf5\xbd\x7d\xcc\xd7\xb9\x2a\x9b\xd5\xc7\x36\x33\x75\xa5\x78\x51\xc2\xbc"
      "\x72\x50\x9f\x20\x05\xf1\x38\xf5\xa5\x9c\xf8\x5e\x9d\xdb\x1c\x97\x2c\x89"
      "\xd5\x08\x06\xe8\x94\x1b\x70\x59\xcd\x3e\xca\x77\x52\x7a\x7f\x20\xaf\x70"
      "\x84\x1b\x4d\x6f\x02\x66\x14\xbd\xbb\x27\x6a\x68\x14\xcc\x74\xd9\x18\x56"
      "\xb9\x68\xc5\xfd\xb5\x26\x74\xd8\x92\xa9\x0d\x01\xab\x91\x84\x1b\x68\x11"
      "\xde\xf7\x8b\xda\xc9\xbc\x6f\x9d\xf2\x59\x85\x69\xfb\xdf\xef\x75\x07\x98"
      "\x32\xb2\x75\x08\x01\xdc\x83\xfd\x19\x87\x71\x3c\x61\x13\x6a\xc9\xe5\xf2"
      "\xf7\xe6\x7f\x30\x21\x09\xbb\x9a\x7f\xea\x75\x29\x0b\x50\x6a\x89\xa1\x9d"
      "\x7e\x0e\x47\x29\x37\xa8\xc9\xec\xfe\x16\xef\x6e\xb8\x8c\x7a\x88\xa0\x60"
      "\x75\x61\x96\xd5\x5d\x6a\x3d\x3f\x7c\xdf\x99\x15\xd2\x2b\x6b\x3a\xf6\x9e"
      "\xc5\x50\x17\xb8\x21\xec\x06\x21\xe8\xa5\x94\x14\xef\xc2\xb4\x69\x77\xa8"
      "\x58\x46\xb5\x3a\xe7\x5a\x35\x09\x47\xaf\xca\xfb\xde\xf7\x23\x3c\xc3\x71"
      "\xbc\x2a\x6f\x29\xc0\x31\x5b\x35\x2a\xc2\x74\x1c\x81\xdf\x53\x43\x03\xdd"
      "\xb3\x0a\x44\x08\xdb\x56\x79\xd0\x5d\x24\x52\x59\xc2\x45\xc9\xd7\xf8\x61"
      "\x71\x1c\xc2\x87\xcf\xd0\x46\x2b\x94\x85\x12\x62\x3b\x92\x10\x60\x38\x6c"
      "\x58\x7f\xd1\x66\xdf\x29\xe7\x1e\xcf\xc8\xed\x90\x03\x1e\x95\xb2\xaf\x14"
      "\x06\xb5\xae\x73\xf6\x08\x4e\x39\xe8\x81\x94\xe3\xd3\x7d\xc8\x01\x98\x26"
      "\x56\xb5\xb6\x63\x42\xd7\x41\x00\xf9\xf5\xb8\xc9\x4c\x1e\x91\xb6\x26\xbb"
      "\xf4\x26\xa0\x7b\x4b\xe9\x1d\xbd\xb7\x6a\x6e\x40\xd0\xb7\x88\xf8\x93\x59"
      "\xe4\x62\xe6\x9b\xc4\x49\x9f\xd4\xf9\xaa\x1e\x7f\x0c\x3f\x73\xa9\x96\xb6"
      "\xec\xef\x60\x6c\x76\x51\x28\x6e\x1f\x18\xa6\x82\x3e\xed\x71\x91\xcd\x54"
      "\x20\x57\xea\xaf\x09\xaa\x32\xe8\xce\x37\x0c\x09\x05\x02\x78\xb8\x5f\xd3"
      "\x59\xb8\xca\x23\xe6\x6e\x9d\x29\x4e\xc5\x7b\x3d\xdd\x90\x40\x9d\x9b\x1c"
      "\xa2\x8c\x69\x93\xb2\x44\xf8\xca\x46\xf6\xbf\x47\x8f\xf2\x2f\xb1\xdf\x53"
      "\xe3\x3a\xbd\xda\x4b\x2b\x1e\x5c\xff\x7d\xe1\x99\x57\xbd\xc8\xe7\xca\x39"
      "\xe4\x76\x22\x04\xb1\xf9\xf3\x3b\x93\x75\xb7\x28\x24\x22\xb9\x18\x41\x70"
      "\x67\x51\x03\x8e\x42\x02\x3b\xa4\x5c\x1c\xd0\x99\x8c\x17\x94\xc1\xc2\xa5"
      "\xff\x65\x46\x61\x89\xbb\xb2\x7b\xcb\xf0\x1e\x5a\x48\xbf\xd8\xb6\x84\x5f"
      "\x7d\x5c\x87\xd9\x77\xdf\x4d\xed\x52\x73\xeb\xf5\x6b\x96\xc5\x0b\x4e\xad"
      "\xc4\x4b\xfa\xa0\x99\x42\x59\xee\xb1\x03\x16\x44\x41\x5f\xa9\xd7\x29\x75"
      "\x3d\x21\x38\xb0\x6f\x9b\x7b\x62\x4d\x9e\xeb\x1e\xf7\x1d\xfd\xff\x0b\x63"
      "\x90\x78\xf0\x58\xc7\xa0\x70\x45\x1c\x46\x70\xaf\x0c\x6e\xb1\x20\x2f\x77"
      "\xbe\x82\xfa\xba\x9b\x62\x87\x99\x50\x66\xb5\xf7\xe5\x9b\x79\x67\x70\x6d"
      "\x8d\x8c\x5b\xde\x48\x13\x7e\x13\xdf\x53\x7a\xe5\x46\x64\xfe\x4e\x84\x60"
      "\xb1\xbd\xf5\xb9\x2a\x1d\xcf\x39\xee\x17\x26\xbc\x66\x90\xd0\xac\x5f\x79"
      "\x9b\xcf\xab\x91\x8c\x59\xcb\x13\x2c\x45\x05\x4b\xa1\x7b\x8a\x44\xd5\x05"
      "\xad\x3e\xae\xee\x95\xb4\x27\x5b\x25\xb2\x08\x7d\xa8\x90\x25\x52\x72\x7a"
      "\x1e\x73\x90\x14\xdf\x34\x8c\xfa\x3a\x11\x02\x66\x1c\x35\xa6\xa3\x8d\xf6"
      "\xc4\x10\xf5\x34\x35\x77\x95\x5d\xd5\x7d\xe5\xaf\x08\x9e\x3f\x1b\xcd\xf9"
      "\x6d\x4e\xf1\xd5\x94\x42\x43\x47\x0b\x0e\xd1\x06\x16\x14\x4c\xcc\xc5\xca"
      "\xc4\x4e\x36\xfe\xfd\x94\x41\x12\x0c\x5d\x04\x78\x67\xaf\x0e\xa3\x53\xda"
      "\x21\xfc\x0a\xe7\x3b\x78\xb8\x4d\x53\xa6\x2e\xfe\xb9\x4e\xa8\xd4\x41\xcc"
      "\x69\x8c\x92\xfd\x7b\x36\xcf\x41\x47\x2d\x03\x6c\x50\x93\xbb\xdf\x94\x36"
      "\x20\xc2\x9f\xfa\x3b\x21\xef\x4a\x0b\xb9\x27\x49\x12\xb0\x46\x83\x4e\xe6"
      "\xf8\x55\xce\xad\xf1\x8f\xb4\x88\x04\x0d\x58\x29\xab\x6e\x8b\xf6\x9a\x90"
      "\x31\x5f\x7f\x84\xd0\x02\xac\x4e\x92\x9e\x9f\x10\x10\xa8\x48\x67\x46\xbd"
      "\x31\x67\x99\xba\x3a\x65\x74\x49\x80\xc3\x88\x20\x23\x24\xba\x50\x76\x8c"
      "\x77\xa8\x48\x1b\xa7\x4d\x13\x5d\xa7\x50\x70\x48\xc8\x27\x14\xa8\x23\x48"
      "\x37\xb6\x99\x22\x12\x6e\x40\x84\xa6\x8f\x74\x18\xbf\xd2\x64\x17\xca\xde"
      "\x78\x6c\x7f\x81\x85\xe2\x49\x2e\x3b\x64\xeb\x9d\x2c\x2c\x72\x15\x04\xc7"
      "\xb4\xae\xb3\x83\x50\x3f\x74\x5f\xd6\x93\x15\xc5\x6b\x5b\x01\x58\xde\xcd"
      "\x1b\x16\x06\xa6\x33\x66\xb7\xe2\xd2\xb9\x12\x4b\x6e\xfc\xa4\x48\x0c\x70"
      "\x3c\x8f\x37\xd6\xdd\xff\x55\xb0\xec\x15\xf2\xce\x6b\xe6\xc9\x02\xd0\x6a"
      "\xec\x2c\xca\xbe\xba\x13\xb4\x42\xb6\x08\x07\x6c\x33\xd1\x9e\x69\x0a\xb6"
      "\x6c\xf6\x67\x8d\x67\x97\x58\xd2\x2f\xb5\xd8\xd9\x63\xf2\x5d\x00\xc4\x55"
      "\x76\xf8\xb2\x93\x85\x43\x08\x02\x97\xb9\xcb\x6c\x30\x5e\x31\x31\xd2\xf4"
      "\x12\xf0\x03\x70\xc2\x85\x25\x19\x09\xf8\xeb\xef\xc3\xd1\x8a\x23\xe2\x5a"
      "\x18\x39\x97\xb0\x82\x51\x45\x0b\x29\xff\xf3\x27\x81\xe6\xa7\x0e\x6e\x07"
      "\x0a\xb3\x92\x1f\x3f\x80\x93\x92\xde\xb7\x32\xd6\xf3\x0c\xc0\x34\xb5\xf7"
      "\x7d\x41\x21\x8b\xca\x86\xd5\x15\xb1\x6d\xa0\x45\x7d\xbf\x7a\xae\xfd\xce"
      "\xf9\xd5\x35\x8e\x7b\x4f\x1e\x5d\x1a\x41\x0f\x55\x44\x9e\x76\x56\x09\xd1"
      "\x22\xf9\x38\xfd\x57\xb7\x14\x82\x24\x4d\xff\x05\x23\x06\x7c\xab\xfd\x32"
      "\x2f\xc4\x7a\xca\x1c\x33\x11\x12\xe3\xd9\x69\xf5\xfe\x35\x94\xc3\xc7\xad"
      "\xea\x7c\x36\xe9\xb9\xaf\x67\x54\xcd\xea\x5c\xcf\x05\xb1\x39\xf7\x83\xd4"
      "\xb2\x45\x40\xc5\x0a\x6a\x9f\x7d\xff\x47\x2d\x47\xc8\x7c\x15\x1d\x84\x39"
      "\xb5\x74\x0c\xd1\xf4\x23\x33\x5d\xae\x26\x80\x05\x0b\xd4\x47\x66\x15\x9c"
      "\xba\x66\x66\x6b\x7d\xbc\x9e\x19\x01\x30\x49\x43\x27\xa0\xd8\xc9\xdb\xed"
      "\x5c\x8b\x83\x1c\xe2\xb2\xbb\x23\x63\x53\xff\x71\x75\xa4\x8b\x61\xa0\xf3"
      "\x20\x9f\xa3\xdb\x44\xf0\x7a\x21\xa4\x85\xef\x16\x82\xa3\x3c\xdf\x63\x2a"
      "\xc2\xd6\xca\x99\x3b\x6c\xd9\x09\x13\xe3\x17\x04\xbb\x85\x17\x11\xe1\xf2"
      "\xb5\xeb\xb1\x9b\xaa\xba\x10\x2d\xd4\x2d\x55\x09\x33\xe9\xdf\xc1\x73\x11"
      "\x66\x5f\xef\x4d\x02\x06\xd7\xde\xbb\xcb\xbd\x97\xef\xaf\xff\xb9\x05\xbf"
      "\x9a\x77\xb8\xee\xb6\x7d\x5f\x8b\xef\x85\x26\xf6\xf8\x60\x76\x72\xbb\x3c"
      "\x50\xb1\x4e\x16\xc2\x64\x26\x55\x94\xe0\x5f\xa4\x81\xf7\x24\x29\x0a\xbd"
      "\xc9\xf6\x0a\x89\x9f\x26\x03\x32\x36\xe3\xb9\x05\x48\xc2\x42\x88\xa7\xb6"
      "\x27\xb5\x1c\x4d\x7c\x63\x8c\x35\x9e\xc6\x32\x5b\x0d\x79\xe1\xd6\x9c\xf1"
      "\x8c\xd9\x13\x6a\x26\x3b\x6a\xa8\x4a\xd0\x62\xb9\x83\x1f\xc7\xc2\x01\xb7"
      "\xcc\xec\x7d\x3b\x7e\xa2\x13\x2e\xe4\x57\x96\x32\xbf\x61\x4b\xcd\xe2\x85"
      "\x52\x7c\x36\xef\x8a\x8e\x12\x65\x1e\xf3\x4a\x67\x7a\x8d\x2f\x84\x36\x0a"
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      "\x3e\xc0\x8d\x67\xb9\x5f\x75\x92\x52\xd7\x58\x74\x38\x20\xba\x24\x30\x32"
      "\xe1\x70\x84\x47\xfb\xae\xbc\x27\xe1\x31\x6a\xf4\xcf\x54\x7c\xef\x3a\xc4"
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      "\x12\x49\x3d\x97\x84\xb2\x4d\xc5\x61\xc1\xf8\x8e\x59\x10\x56\xbc\xc3\xb3"
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      "\x8c\x8a\xe2\xdb\x6b\x7b\x8f\x25\x43\x03\xc7\xff\x06\x51\x47\x35\x97\x4e"
      "\x65\xfb\x9a\x93\xdc\x79\xb1\x15\xa1\x23\x10\x04\x04\x90\xca\x11\xef\x31"
      "\x53\x40\xaf\x10\x4e\x20\xa2\xe2\x2d\xcd\x13\x2f\x7d\x7a\x61\xd9\xd3\xa1"
      "\x2e\x83\x2e\xe0\x48\xa2\x17\x0d\xbe\x03\xd7\x47\xed\x74\x02\x18\x0e\xb9"
      "\x64\xfd\xe0\xec\xb7\x7e\x77\x8b\x18\xa4\xe5\xa8\x34\x79\xbb\x7e\x0e\xa0"
      "\xa7\xd5\x14\x5f\xfe\xd4\x60\x7b\xd7\xe6\xb8\xf9\x61\x62\x5d\x5e\x3d\xca"
      "\xc2\xd4\xa0\x5e\x71\xdc\x9c\x2e\x52\x19\x5b\xd5\x5a\xed\x4e\x67\x49\xdc"
      "\x1c\x32\x9e\x2c\xda\x96\x6d\x18\xe9\xbf\x88\x2c\x05\xdb\x62\x7c\x10\x47"
      "\xfc\x71\x53\x3b\xbb\xa2\xc8\xa8\x3d\x04\xdb\x5b\xad\x6d\xa3\x49\xa9\xad"
      "\x19\x92\xeb\x88\xe0\x27\x4d\x32\xa1\x61\x37\xe2\x39\x6a\xd9\x73\xc0\xec"
      "\xbb\xc2\xd2\x43\xe6\x8b\x69\x59\xbf\x9b",
      4096);
  *(uint16_t*)0x400000001544 = 0x1000;
  syscall(__NR_write, /*fd=*/r[5], /*data=*/0x400000000540ul, /*len=*/0x7fecul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x3ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x400000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x400001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}