// https://syzkaller.appspot.com/bug?id=e7cee8e74a4cb1686bafc0eccf2ce63b6a4f0100
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif
#ifndef __NR_fsconfig
#define __NR_fsconfig 431
#endif
#ifndef __NR_fsmount
#define __NR_fsmount 432
#endif
#ifndef __NR_fsopen
#define __NR_fsopen 430
#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;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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 MAX_FDS 30

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

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 close_fds()
{
  for (int fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

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();
      close_fds();
      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] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  *(uint32_t*)0x400000000040 = 0xd;
  *(uint32_t*)0x400000000044 = 4;
  *(uint64_t*)0x400000000048 = 0x400000000000;
  *(uint8_t*)0x400000000000 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x400000000001, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x400000000001, 0, 4, 4);
  *(uint16_t*)0x400000000002 = 0;
  *(uint32_t*)0x400000000004 = 0;
  *(uint8_t*)0x400000000008 = 0;
  *(uint8_t*)0x400000000009 = 0;
  *(uint16_t*)0x40000000000a = 0;
  *(uint32_t*)0x40000000000c = 0;
  *(uint8_t*)0x400000000010 = 0x79;
  *(uint8_t*)0x400000000011 = 0x11;
  *(uint16_t*)0x400000000012 = 0xc8;
  *(uint32_t*)0x400000000014 = 0;
  *(uint8_t*)0x400000000018 = 0x95;
  *(uint8_t*)0x400000000019 = 0;
  *(uint16_t*)0x40000000001a = 0;
  *(uint32_t*)0x40000000001c = 0;
  *(uint64_t*)0x400000000050 = 0x4000000000c0;
  memcpy((void*)0x4000000000c0, "GPL\000", 4);
  *(uint32_t*)0x400000000058 = 4;
  *(uint32_t*)0x40000000005c = 0x1000;
  *(uint64_t*)0x400000000060 = 0x400000000200;
  *(uint32_t*)0x400000000068 = 0;
  *(uint32_t*)0x40000000006c = 0;
  memset((void*)0x400000000070, 0, 16);
  *(uint32_t*)0x400000000080 = 0;
  *(uint32_t*)0x400000000084 = 0;
  *(uint32_t*)0x400000000088 = -1;
  *(uint32_t*)0x40000000008c = 8;
  *(uint64_t*)0x400000000090 = 0;
  *(uint32_t*)0x400000000098 = 0;
  *(uint32_t*)0x40000000009c = 0x10;
  *(uint64_t*)0x4000000000a0 = 0;
  *(uint32_t*)0x4000000000a8 = 0;
  *(uint32_t*)0x4000000000ac = 0;
  *(uint32_t*)0x4000000000b0 = -1;
  *(uint32_t*)0x4000000000b4 = 0;
  *(uint64_t*)0x4000000000b8 = 0;
  *(uint64_t*)0x4000000000c0 = 0;
  *(uint32_t*)0x4000000000c8 = 0x10;
  *(uint32_t*)0x4000000000cc = 0;
  *(uint32_t*)0x4000000000d0 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x400000000040ul, /*size=*/0x70ul);
  *(uint32_t*)0x400000000340 = 0x18;
  *(uint32_t*)0x400000000344 = 3;
  *(uint64_t*)0x400000000348 = 0x400000000d00;
  memcpy((void*)0x400000000d00,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x95",
         17);
  *(uint64_t*)0x400000000350 = 0x400000000000;
  memcpy((void*)0x400000000000, "syzkaller\000", 10);
  *(uint32_t*)0x400000000358 = 0;
  *(uint32_t*)0x40000000035c = 0;
  *(uint64_t*)0x400000000360 = 0;
  *(uint32_t*)0x400000000368 = 0;
  *(uint32_t*)0x40000000036c = 0;
  memset((void*)0x400000000370, 0, 16);
  *(uint32_t*)0x400000000380 = 0;
  *(uint32_t*)0x400000000384 = 0;
  *(uint32_t*)0x400000000388 = -1;
  *(uint32_t*)0x40000000038c = 8;
  *(uint64_t*)0x400000000390 = 0;
  *(uint32_t*)0x400000000398 = 0;
  *(uint32_t*)0x40000000039c = 0x10;
  *(uint64_t*)0x4000000003a0 = 0;
  *(uint32_t*)0x4000000003a8 = 0;
  *(uint32_t*)0x4000000003ac = 0;
  *(uint32_t*)0x4000000003b0 = 0;
  *(uint32_t*)0x4000000003b4 = 0;
  *(uint64_t*)0x4000000003b8 = 0;
  *(uint64_t*)0x4000000003c0 = 0;
  *(uint32_t*)0x4000000003c8 = 0x10;
  *(uint32_t*)0x4000000003cc = 0;
  *(uint32_t*)0x4000000003d0 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x400000000340ul, /*size=*/0x90ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x400000000200 = 0x4000000001c0;
  memcpy((void*)0x4000000001c0, "task_newtask\000", 13);
  *(uint32_t*)0x400000000208 = r[0];
  *(uint32_t*)0x40000000020c = 0;
  *(uint64_t*)0x400000000210 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x400000000200ul, /*size=*/0x10ul);
  syscall(__NR_close, /*fd=*/-1);
  syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0ul,
          /*flags=*/0x200002, /*mode=*/0);
  *(uint32_t*)0x400000000100 = 0x15;
  *(uint32_t*)0x400000000104 = 0x10;
  *(uint32_t*)0x400000000108 = 8;
  *(uint32_t*)0x40000000010c = 0;
  *(uint32_t*)0x400000000110 = 0;
  *(uint32_t*)0x400000000114 = -1;
  *(uint32_t*)0x400000000118 = 0;
  memset((void*)0x40000000011c, 0, 16);
  *(uint32_t*)0x40000000012c = 0;
  *(uint32_t*)0x400000000130 = -1;
  *(uint32_t*)0x400000000134 = 0;
  *(uint32_t*)0x400000000138 = 0;
  *(uint32_t*)0x40000000013c = 0;
  *(uint64_t*)0x400000000140 = 0;
  *(uint32_t*)0x400000000148 = 0;
  *(uint32_t*)0x40000000014c = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x400000000100ul, /*size=*/0x50ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x400000000440 = 8;
  *(uint32_t*)0x400000000444 = 0xf;
  *(uint64_t*)0x400000000448 = 0x400000000540;
  memcpy((void*)0x400000000540,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x11\x00\x00",
         20);
  *(uint32_t*)0x400000000554 = r[1];
  memcpy(
      (void*)0x400000000558,
      "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x02\x00\x00\x14\x00\x00\x00\xb7\x02"
      "\x00\x00\x00\x00\x00\x00\x85\x00\x00\x00\x51\x00\x00\x00\xbf\x09\x00\x00"
      "\x00\x00\x00\x00\x55\x09\x01\x00\x00\x00\x00\x00\x95\x00\x00\x00\x00\x00"
      "\x00\x00\xbf\x91\x00\x00\x00\x00\x00\x00\xb7\x02\x00\x00\x00\x00\x00\x00"
      "\x85\x00\x00\x00\x05\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x95",
      89);
  *(uint64_t*)0x400000000450 = 0x400000000000;
  memcpy((void*)0x400000000000, "GPL\000", 4);
  *(uint32_t*)0x400000000458 = 0;
  *(uint32_t*)0x40000000045c = 0;
  *(uint64_t*)0x400000000460 = 0;
  *(uint32_t*)0x400000000468 = 0;
  *(uint32_t*)0x40000000046c = 0;
  memset((void*)0x400000000470, 0, 16);
  *(uint32_t*)0x400000000480 = 0;
  *(uint32_t*)0x400000000484 = 0;
  *(uint32_t*)0x400000000488 = -1;
  *(uint32_t*)0x40000000048c = 8;
  *(uint64_t*)0x400000000490 = 0;
  *(uint32_t*)0x400000000498 = 0;
  *(uint32_t*)0x40000000049c = 0x10;
  *(uint64_t*)0x4000000004a0 = 0;
  *(uint32_t*)0x4000000004a8 = 0;
  *(uint32_t*)0x4000000004ac = 0;
  *(uint32_t*)0x4000000004b0 = 0;
  *(uint32_t*)0x4000000004b4 = 0;
  *(uint64_t*)0x4000000004b8 = 0;
  *(uint64_t*)0x4000000004c0 = 0;
  *(uint32_t*)0x4000000004c8 = 0x10;
  *(uint32_t*)0x4000000004cc = 0;
  *(uint32_t*)0x4000000004d0 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x400000000440ul, /*size=*/0x94ul);
  *(uint32_t*)0x400000001c40 = 8;
  *(uint32_t*)0x400000001c44 = 3;
  *(uint64_t*)0x400000001c48 = 0x400000001300;
  memcpy((void*)0x400000001300,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x95",
         17);
  *(uint64_t*)0x400000001c50 = 0x400000001200;
  memcpy((void*)0x400000001200, "syzkaller\000", 10);
  *(uint32_t*)0x400000001c58 = 0;
  *(uint32_t*)0x400000001c5c = 0;
  *(uint64_t*)0x400000001c60 = 0;
  *(uint32_t*)0x400000001c68 = 0;
  *(uint32_t*)0x400000001c6c = 0;
  memset((void*)0x400000001c70, 0, 16);
  *(uint32_t*)0x400000001c80 = 0;
  *(uint32_t*)0x400000001c84 = 0;
  *(uint32_t*)0x400000001c88 = -1;
  *(uint32_t*)0x400000001c8c = 8;
  *(uint64_t*)0x400000001c90 = 0;
  *(uint32_t*)0x400000001c98 = 0;
  *(uint32_t*)0x400000001c9c = 0x10;
  *(uint64_t*)0x400000001ca0 = 0;
  *(uint32_t*)0x400000001ca8 = 0;
  *(uint32_t*)0x400000001cac = 0;
  *(uint32_t*)0x400000001cb0 = 0;
  *(uint32_t*)0x400000001cb4 = 0;
  *(uint64_t*)0x400000001cb8 = 0;
  *(uint64_t*)0x400000001cc0 = 0;
  *(uint32_t*)0x400000001cc8 = 0x10;
  *(uint32_t*)0x400000001ccc = 0;
  *(uint32_t*)0x400000001cd0 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x400000001c40ul, /*size=*/0x80ul);
  if (res != -1)
    r[2] = res;
  memcpy((void*)0x400000000000, "cgroup2\000", 8);
  res = syscall(__NR_fsopen, /*type=*/0x400000000000ul, /*flags=*/0ul);
  if (res != -1)
    r[3] = res;
  syscall(__NR_fsconfig, /*fd=*/r[3], /*cmd=*/6ul, /*key=*/0ul, /*value=*/0ul,
          /*aux=*/0ul);
  res = syscall(__NR_fsmount, /*fs_fd=*/r[3], /*flags=*/0ul,
                /*attr_flags=MOUNT_ATTR_NOSUID*/ 2ul);
  if (res != -1)
    r[4] = res;
  *(uint32_t*)0x4000000003c0 = r[2];
  *(uint32_t*)0x4000000003c4 = r[4];
  *(uint32_t*)0x4000000003c8 = 0;
  *(uint32_t*)0x4000000003cc = 0;
  *(uint32_t*)0x4000000003d0 = 0;
  res = syscall(__NR_bpf, /*cmd=*/0x1cul, /*arg=*/0x4000000003c0ul,
                /*size=*/0x10ul);
  if (res != -1)
    r[5] = res;
  *(uint32_t*)0x400000000040 = r[5];
  *(uint32_t*)0x400000000044 = 7;
  syscall(__NR_bpf, /*cmd=*/0x1dul, /*arg=*/0x400000000040ul, /*size=*/8ul);
}
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;
  do_sandbox_none();
  return 0;
}