// https://syzkaller.appspot.com/bug?id=8104a8dead4f053580f41aa253534339c6c5b768
// 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/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_bpf
#define __NR_bpf 321
#endif

static 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;
}

#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;
}

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");
}

#define USLEEP_FORKED_CHILD (3 * 50 * 1000)

static long handle_clone_ret(long ret)
{
  if (ret != 0) {
    return ret;
  }
  usleep(USLEEP_FORKED_CHILD);
  syscall(__NR_exit, 0);
  while (1) {
  }
}

static long syz_clone(volatile long flags, volatile long stack,
                      volatile long stack_len, volatile long ptid,
                      volatile long ctid, volatile long tls)
{
  long sp = (stack + stack_len) & ~15;
  long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls);
  return handle_clone_ret(ret);
}

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

uint64_t r[8] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0ul);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0ul, /*size=*/0ul);
  syz_clone(/*flags=*/0, /*stack=*/0, /*stack_len=*/0, /*parentid=*/0,
            /*childtid=*/0, /*tls=*/0);
  syscall(__NR_perf_event_open, /*attr=*/0ul, /*pid=*/0,
          /*cpu=*/0xbffffffffffffffful, /*group=*/-1, /*flags=*/0ul);
  syscall(__NR_ioctl, /*fd=*/-1, /*cmd=*/0x8924, /*arg=*/0ul);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  *(uint32_t*)0x20000340 = 2;
  *(uint32_t*)0x20000344 = 4;
  *(uint32_t*)0x20000348 = 8;
  *(uint32_t*)0x2000034c = 1;
  *(uint32_t*)0x20000350 = 0x80;
  *(uint32_t*)0x20000354 = -1;
  *(uint32_t*)0x20000358 = 0;
  memset((void*)0x2000035c, 0, 16);
  *(uint32_t*)0x2000036c = 0;
  *(uint32_t*)0x20000370 = -1;
  *(uint32_t*)0x20000374 = 0;
  *(uint32_t*)0x20000378 = 0;
  *(uint32_t*)0x2000037c = 0;
  *(uint64_t*)0x20000380 = 0;
  res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000340ul, /*size=*/0x48ul);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000480 = r[0];
  syscall(__NR_bpf, /*cmd=*/0x16ul, /*arg=*/0x20000480ul, /*size=*/4ul);
  *(uint32_t*)0x200004c0 = 0x11;
  *(uint32_t*)0x200004c4 = 0x18;
  *(uint64_t*)0x200004c8 = 0x200001c0;
  memcpy((void*)0x200001c0,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb7"
         "\x08\x00\x00\x00\x00\x00\x00\x7b\x8a\xf8\xff\x00\x00\x00\x00\xb7\x08"
         "\x00\x00\x00\x00\x00\x00\x7b\x8a\xf0\xff\x00\x00\x00\x00\xbf\xa1\x00"
         "\x00\x00\x00\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xbf\xa4\x00\x00"
         "\x00\x00\x00\x00\x07\x04\x00\x00\xf0\xff\xff\xff\xb7\x02\x00\x00\x00"
         "\x00\x00\x00\x18\x23\x00\x00",
         92);
  *(uint32_t*)0x2000021c = r[0];
  memcpy(
      (void*)0x20000220,
      "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x05\x00\x00\x00\x00\x00\x00\x85\x00"
      "\x00\x00\xa5\x00\x00\x00\x18\x01\x00\x00\x20\x20\x64\x05\x00\x00\x00\x00"
      "\x00\x20\x20\x20\x7b\x1a\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00"
      "\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00"
      "\xb7\x03\x00\x00\x00\x00\x00\x00\xa5\x00\x00\x00\x08\x00\x00\x00\x95",
      89);
  *(uint64_t*)0x200004d0 = 0x20000600;
  memcpy((void*)0x20000600, "GPL\000", 4);
  *(uint32_t*)0x200004d8 = 0;
  *(uint32_t*)0x200004dc = 0;
  *(uint64_t*)0x200004e0 = 0;
  *(uint32_t*)0x200004e8 = 0;
  *(uint32_t*)0x200004ec = 0;
  memset((void*)0x200004f0, 0, 16);
  *(uint32_t*)0x20000500 = 0;
  *(uint32_t*)0x20000504 = 0;
  *(uint32_t*)0x20000508 = 0;
  *(uint32_t*)0x2000050c = 0;
  *(uint64_t*)0x20000510 = 0;
  *(uint32_t*)0x20000518 = 0;
  *(uint32_t*)0x2000051c = 0;
  *(uint64_t*)0x20000520 = 0;
  *(uint32_t*)0x20000528 = 0;
  *(uint32_t*)0x2000052c = 0;
  *(uint32_t*)0x20000530 = 0;
  *(uint32_t*)0x20000534 = 0;
  *(uint64_t*)0x20000538 = 0;
  *(uint64_t*)0x20000540 = 0;
  *(uint32_t*)0x20000548 = 0;
  *(uint32_t*)0x2000054c = 0;
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200004c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x200002c0 = 0x20000000;
  memcpy((void*)0x20000000, "kmem_cache_free\000", 16);
  *(uint32_t*)0x200002c8 = r[1];
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200002c0ul, /*size=*/0x10ul);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0ul, /*flags=*/0x26e1ul,
          /*mode=*/0ul);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0ul,
                /*flags=*/0x7a05ul, /*mode=*/0x1700ul);
  if (res != -1)
    r[2] = res;
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0ul,
                /*flags=*/0x100002ul, /*mode=*/0ul);
  if (res != -1)
    r[3] = res;
  syscall(__NR_write, /*fd=*/r[3], /*buf=*/0ul, /*len=*/0ul);
  syscall(__NR_write, /*fd=*/r[2], /*buf=*/0ul, /*len=*/0x7ffffffff000ul);
  syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0ul);
  *(uint32_t*)0x20000800 = 0;
  *(uint32_t*)0x20000804 = 0x1c;
  *(uint64_t*)0x20000808 = 0x200003c0;
  *(uint8_t*)0x200003c0 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200003c1, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003c1, 0, 4, 4);
  *(uint16_t*)0x200003c2 = 0;
  *(uint32_t*)0x200003c4 = 0;
  *(uint8_t*)0x200003c8 = 0;
  *(uint8_t*)0x200003c9 = 0;
  *(uint16_t*)0x200003ca = 0;
  *(uint32_t*)0x200003cc = 0;
  *(uint8_t*)0x200003d0 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200003d1, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003d1, 1, 4, 4);
  *(uint16_t*)0x200003d2 = 0;
  *(uint32_t*)0x200003d4 = -1;
  *(uint8_t*)0x200003d8 = 0;
  *(uint8_t*)0x200003d9 = 0;
  *(uint16_t*)0x200003da = 0;
  *(uint32_t*)0x200003dc = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200003e0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200003e0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200003e0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003e1, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003e1, 0, 4, 4);
  *(uint16_t*)0x200003e2 = 0;
  *(uint32_t*)0x200003e4 = 0;
  *(uint8_t*)0x200003e8 = 0x85;
  *(uint8_t*)0x200003e9 = 0;
  *(uint16_t*)0x200003ea = 0;
  *(uint32_t*)0x200003ec = 0x86;
  STORE_BY_BITMASK(uint8_t, , 0x200003f0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200003f0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200003f0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003f1, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003f1, 0, 4, 4);
  *(uint16_t*)0x200003f2 = 0;
  *(uint32_t*)0x200003f4 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200003f8, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200003f8, 3, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200003f8, 3, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200003f9, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200003f9, 8, 4, 4);
  *(uint16_t*)0x200003fa = 0xfff8;
  *(uint32_t*)0x200003fc = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000400, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000400, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000400, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000401, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000401, 0, 4, 4);
  *(uint16_t*)0x20000402 = 0;
  *(uint32_t*)0x20000404 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000408, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000408, 3, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x20000408, 3, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000409, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000409, 8, 4, 4);
  *(uint16_t*)0x2000040a = 0xfff0;
  *(uint32_t*)0x2000040c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000410, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000410, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000410, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000411, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000411, 0xa, 4, 4);
  *(uint16_t*)0x20000412 = 0;
  *(uint32_t*)0x20000414 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000418, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000418, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000418, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000419, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000419, 0, 4, 4);
  *(uint16_t*)0x2000041a = 0;
  *(uint32_t*)0x2000041c = 0xfffffff8;
  STORE_BY_BITMASK(uint8_t, , 0x20000420, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000420, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000420, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000421, 4, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000421, 0xa, 4, 4);
  *(uint16_t*)0x20000422 = 0;
  *(uint32_t*)0x20000424 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000428, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000428, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000428, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000429, 4, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000429, 0, 4, 4);
  *(uint16_t*)0x2000042a = 0;
  *(uint32_t*)0x2000042c = 0xfffffff0;
  STORE_BY_BITMASK(uint8_t, , 0x20000430, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000430, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000430, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000431, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000431, 0, 4, 4);
  *(uint16_t*)0x20000432 = 0;
  *(uint32_t*)0x20000434 = 8;
  *(uint8_t*)0x20000438 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x20000439, 3, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000439, 2, 4, 4);
  *(uint16_t*)0x2000043a = 0;
  *(uint32_t*)0x2000043c = -1;
  *(uint8_t*)0x20000440 = 0;
  *(uint8_t*)0x20000441 = 0;
  *(uint16_t*)0x20000442 = 0;
  *(uint32_t*)0x20000444 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000448, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000448, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000448, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000449, 5, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000449, 0, 4, 4);
  *(uint16_t*)0x2000044a = 0;
  *(uint32_t*)0x2000044c = 8;
  *(uint8_t*)0x20000450 = 0x85;
  *(uint8_t*)0x20000451 = 0;
  *(uint16_t*)0x20000452 = 0;
  *(uint32_t*)0x20000454 = 0xa5;
  *(uint8_t*)0x20000458 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x20000459, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000459, 0, 4, 4);
  *(uint16_t*)0x2000045a = 0;
  *(uint32_t*)0x2000045c = 0x25782020;
  *(uint8_t*)0x20000460 = 0;
  *(uint8_t*)0x20000461 = 0;
  *(uint16_t*)0x20000462 = 0;
  *(uint32_t*)0x20000464 = 0x20202000;
  STORE_BY_BITMASK(uint8_t, , 0x20000468, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000468, 3, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x20000468, 3, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000469, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000469, 1, 4, 4);
  *(uint16_t*)0x2000046a = 0xfff8;
  *(uint32_t*)0x2000046c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000470, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000470, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000470, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000471, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000471, 0xa, 4, 4);
  *(uint16_t*)0x20000472 = 0;
  *(uint32_t*)0x20000474 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x20000478, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000478, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000478, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000479, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000479, 0, 4, 4);
  *(uint16_t*)0x2000047a = 0;
  *(uint32_t*)0x2000047c = 0xfffffff8;
  STORE_BY_BITMASK(uint8_t, , 0x20000480, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000480, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000480, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000481, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000481, 0, 4, 4);
  *(uint16_t*)0x20000482 = 0;
  *(uint32_t*)0x20000484 = 8;
  STORE_BY_BITMASK(uint8_t, , 0x20000488, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x20000488, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x20000488, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000489, 3, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x20000489, 0, 4, 4);
  *(uint16_t*)0x2000048a = 0;
  *(uint32_t*)0x2000048c = 0;
  *(uint8_t*)0x20000490 = 0x85;
  *(uint8_t*)0x20000491 = 0;
  *(uint16_t*)0x20000492 = 0;
  *(uint32_t*)0x20000494 = 6;
  *(uint8_t*)0x20000498 = 0x95;
  *(uint8_t*)0x20000499 = 0;
  *(uint16_t*)0x2000049a = 0;
  *(uint32_t*)0x2000049c = 0;
  *(uint64_t*)0x20000810 = 0;
  *(uint32_t*)0x20000818 = 0;
  *(uint32_t*)0x2000081c = 0;
  *(uint64_t*)0x20000820 = 0;
  *(uint32_t*)0x20000828 = 0;
  *(uint32_t*)0x2000082c = 0;
  memset((void*)0x20000830, 0, 16);
  *(uint32_t*)0x20000840 = 0;
  *(uint32_t*)0x20000844 = 0;
  *(uint32_t*)0x20000848 = -1;
  *(uint32_t*)0x2000084c = 8;
  *(uint64_t*)0x20000850 = 0;
  *(uint32_t*)0x20000858 = 0;
  *(uint32_t*)0x2000085c = 0x10;
  *(uint64_t*)0x20000860 = 0;
  *(uint32_t*)0x20000868 = 0;
  *(uint32_t*)0x2000086c = 0;
  *(uint32_t*)0x20000870 = 0;
  *(uint32_t*)0x20000874 = 0;
  *(uint64_t*)0x20000878 = 0;
  *(uint64_t*)0x20000880 = 0;
  *(uint32_t*)0x20000888 = 0x10;
  *(uint32_t*)0x2000088c = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000800ul, /*size=*/0x90ul);
  *(uint32_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c4 = 0xc;
  *(uint64_t*)0x200000c8 = 0x20000440;
  memcpy((void*)0x20000440,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x11\x00\x00",
         20);
  *(uint32_t*)0x20000454 = -1;
  memcpy((void*)0x20000458, "\x00\x00\x00\x00\x00\x00\x00\x00\xb7", 9);
  *(uint64_t*)0x200000d0 = 0;
  *(uint32_t*)0x200000d8 = 0;
  *(uint32_t*)0x200000dc = 0;
  *(uint64_t*)0x200000e0 = 0;
  *(uint32_t*)0x200000e8 = 0;
  *(uint32_t*)0x200000ec = 0;
  memset((void*)0x200000f0, 0, 16);
  *(uint32_t*)0x20000100 = 0;
  *(uint32_t*)0x20000104 = 0;
  *(uint32_t*)0x20000108 = -1;
  *(uint32_t*)0x2000010c = 0;
  *(uint64_t*)0x20000110 = 0;
  *(uint32_t*)0x20000118 = 0;
  *(uint32_t*)0x2000011c = 0;
  *(uint64_t*)0x20000120 = 0;
  *(uint32_t*)0x20000128 = 0;
  *(uint32_t*)0x2000012c = 0;
  *(uint32_t*)0x20000130 = 0;
  *(uint32_t*)0x20000134 = 0;
  *(uint64_t*)0x20000138 = 0;
  *(uint64_t*)0x20000140 = 0;
  *(uint32_t*)0x20000148 = 0;
  *(uint32_t*)0x2000014c = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[4] = res;
  *(uint32_t*)0x20000640 = 0x1e;
  *(uint32_t*)0x20000644 = 0;
  *(uint32_t*)0x20000648 = 4;
  *(uint32_t*)0x2000064c = 0xff;
  *(uint32_t*)0x20000650 = 0;
  *(uint32_t*)0x20000654 = 1;
  *(uint32_t*)0x20000658 = 0;
  memset((void*)0x2000065c, 0, 16);
  *(uint32_t*)0x2000066c = 0;
  *(uint32_t*)0x20000670 = -1;
  *(uint32_t*)0x20000674 = 0;
  *(uint32_t*)0x20000678 = 0;
  *(uint32_t*)0x2000067c = 0;
  *(uint64_t*)0x20000680 = 0;
  res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000640ul, /*size=*/0x48ul);
  if (res != -1)
    r[5] = res;
  *(uint32_t*)0x20000a40 = 3;
  *(uint32_t*)0x20000a44 = 0xc;
  *(uint64_t*)0x20000a48 = 0x20000440;
  memcpy((void*)0x20000440,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x11\x00\x00",
         20);
  *(uint32_t*)0x20000454 = r[5];
  *(uint64_t*)0x20000a50 = 0;
  *(uint32_t*)0x20000a58 = 0;
  *(uint32_t*)0x20000a5c = 0;
  *(uint64_t*)0x20000a60 = 0;
  *(uint32_t*)0x20000a68 = 0;
  *(uint32_t*)0x20000a6c = 0;
  memset((void*)0x20000a70, 0, 16);
  *(uint32_t*)0x20000a80 = 0;
  *(uint32_t*)0x20000a84 = 0x25;
  *(uint32_t*)0x20000a88 = -1;
  *(uint32_t*)0x20000a8c = 8;
  *(uint64_t*)0x20000a90 = 0;
  *(uint32_t*)0x20000a98 = 0;
  *(uint32_t*)0x20000a9c = 0x10;
  *(uint64_t*)0x20000aa0 = 0;
  *(uint32_t*)0x20000aa8 = 0;
  *(uint32_t*)0x20000aac = 0;
  *(uint32_t*)0x20000ab0 = 0;
  *(uint32_t*)0x20000ab4 = 0;
  *(uint64_t*)0x20000ab8 = 0;
  *(uint64_t*)0x20000ac0 = 0;
  *(uint32_t*)0x20000ac8 = 0x10;
  *(uint32_t*)0x20000acc = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000a40ul, /*size=*/0x90ul);
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0ul, /*size=*/0ul);
  *(uint32_t*)0x200005c0 = 0x18;
  *(uint32_t*)0x200005c4 = 0xc;
  *(uint64_t*)0x200005c8 = 0x20000440;
  *(uint64_t*)0x200005d0 = 0x20000240;
  memcpy((void*)0x20000240, "GPL\000", 4);
  *(uint32_t*)0x200005d8 = 0;
  *(uint32_t*)0x200005dc = 0;
  *(uint64_t*)0x200005e0 = 0;
  *(uint32_t*)0x200005e8 = 0;
  *(uint32_t*)0x200005ec = 0;
  memset((void*)0x200005f0, 0, 16);
  *(uint32_t*)0x20000600 = 0;
  *(uint32_t*)0x20000604 = 0;
  *(uint32_t*)0x20000608 = -1;
  *(uint32_t*)0x2000060c = 0;
  *(uint64_t*)0x20000610 = 0;
  *(uint32_t*)0x20000618 = 0;
  *(uint32_t*)0x2000061c = 0;
  *(uint64_t*)0x20000620 = 0;
  *(uint32_t*)0x20000628 = 0;
  *(uint32_t*)0x2000062c = 0;
  *(uint32_t*)0x20000630 = 0;
  *(uint32_t*)0x20000634 = 0;
  *(uint64_t*)0x20000638 = 0;
  *(uint64_t*)0x20000640 = 0;
  *(uint32_t*)0x20000648 = 0;
  *(uint32_t*)0x2000064c = 0;
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200005c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[6] = res;
  *(uint64_t*)0x20000140 = 0x20000040;
  memcpy((void*)0x20000040, "mm_page_alloc\000", 14);
  *(uint32_t*)0x20000148 = r[6];
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000140ul, /*size=*/0x10ul);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
  syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0xc004743e, /*arg=*/0x20001400ul);
  *(uint32_t*)0x20000780 = r[5];
  *(uint32_t*)0x20000784 = 0;
  *(uint64_t*)0x20000788 = 0;
  syscall(__NR_bpf, /*cmd=*/0xful, /*arg=*/0x20000780ul, /*size=*/0x10ul);
  res = syscall(__NR_bpf, /*cmd=*/0x12ul, /*arg=*/0ul, /*size=*/0ul);
  if (res != -1)
    r[7] = res;
  syscall(__NR_bpf, /*cmd=*/0xful, /*arg=*/0ul, /*size=*/0ul);
  *(uint32_t*)0x20000dc0 = 2;
  *(uint32_t*)0x20000dc4 = 0;
  *(uint64_t*)0x20000dc8 = 0;
  *(uint64_t*)0x20000dd0 = 0;
  *(uint32_t*)0x20000dd8 = 0x35;
  *(uint32_t*)0x20000ddc = 0;
  *(uint64_t*)0x20000de0 = 0;
  *(uint32_t*)0x20000de8 = 0x41100;
  *(uint32_t*)0x20000dec = 5;
  memset((void*)0x20000df0, 0, 16);
  *(uint32_t*)0x20000e00 = 0;
  *(uint32_t*)0x20000e04 = 0x32;
  *(uint32_t*)0x20000e08 = r[7];
  *(uint32_t*)0x20000e0c = 8;
  *(uint64_t*)0x20000e10 = 0x200009c0;
  *(uint32_t*)0x200009c0 = 0xa;
  *(uint32_t*)0x200009c4 = 2;
  *(uint32_t*)0x20000e18 = 8;
  *(uint32_t*)0x20000e1c = 0x10;
  *(uint64_t*)0x20000e20 = 0;
  *(uint32_t*)0x20000e28 = 0;
  *(uint32_t*)0x20000e2c = 0;
  *(uint32_t*)0x20000e30 = -1;
  *(uint32_t*)0x20000e34 = 3;
  *(uint64_t*)0x20000e38 = 0;
  *(uint64_t*)0x20000e40 = 0x20000d80;
  *(uint32_t*)0x20000d80 = 5;
  *(uint32_t*)0x20000d84 = 1;
  *(uint32_t*)0x20000d88 = 0xc;
  *(uint32_t*)0x20000d8c = 0;
  *(uint32_t*)0x20000d90 = 1;
  *(uint32_t*)0x20000d94 = 3;
  *(uint32_t*)0x20000d98 = 0xd;
  *(uint32_t*)0x20000d9c = 0xc;
  *(uint32_t*)0x20000da0 = 1;
  *(uint32_t*)0x20000da4 = 2;
  *(uint32_t*)0x20000da8 = 0xd;
  *(uint32_t*)0x20000dac = 4;
  *(uint32_t*)0x20000e48 = 0x10;
  *(uint32_t*)0x20000e4c = 8;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000dc0ul, /*size=*/0x90ul);
  syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0x40047451,
          /*arg=TUN_F_TSO_ECN|TUN_F_TSO4|0x20000000*/ 0x2000000aul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*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=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}