// https://syzkaller.appspot.com/bug?id=b482d6133396a72935d0476c05fa0a0004c25217
// 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_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;
}

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 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  *(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*)0x200001c0 = 0x20000000;
  memcpy((void*)0x20000000, "kfree\000", 6);
  *(uint32_t*)0x200001c8 = r[1];
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200001c0ul, /*size=*/0x10ul);
  *(uint32_t*)0x20000080 = 0x11;
  *(uint32_t*)0x20000084 = 8;
  *(uint64_t*)0x20000088 = 0x20002580;
  memcpy(
      (void*)0x20002580,
      "\x62\x0a\xf8\xff\x0c\x20\x00\x21\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01"
      "\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x03\x00\x00\x00\xbd\x12\x00\x00"
      "\x00\x00\x00\x00\x85\x00\x00\x00\x06\x00\x00\x00\xb7\x00\x00\x00\x00\x00"
      "\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x3f\xaf\x4f\x1e\x7f\x2a\xa3\xd9"
      "\xb1\x8e\xd8\x1c\x0c\x86\x9b\x51\xec\x6c\x0a\xf4\xe0\xe4\xa9\x44\x6c\x76"
      "\x70\x56\x89\x82\xb4\xe0\x20\xf6\x98\x39\x3a\xa0\xf3\x88\x1f\x9c\x24\xaa"
      "\x56\xf1\x51\x99\xfa\xd0\x09\x3c\x59\xd6\x6b\x5e\xce\x9f\x36\xc7\x0d\x0f"
      "\x13\x90\x5e\xa2\x3c\x22\x62\x4c\x9f\x87\xf9\x79\x3f\x50\xbb\x54\x60\x40"
      "\x67\x7b\x0c\x50\x77\xda\x80\xfb\x98\x2c\x1e\x94\x00\xe6\x93\x14\x6c\xea"
      "\x48\x4a\x41\x5b\x76\x96\x61\x18\xb6\x4f\x75\x1a\x0f\x24\x1b\x07\x2e\x90"
      "\x08\x00\x08\x00\x2d\x75\x59\x3a\x28\x6c\xec\xc9\x3e\x64\xc2\x27\xc9\x5a"
      "\xa0\xb7\x84\x62\x57\x04\xf0\x7a\x72\xc2\x34\x66\x4c\x0a\xf9\x36\x0a\x1f"
      "\x7a\x5e\x6b\x60\x71\x30\xc8\x9f\x18\xc0\xc1\x08\x9d\x8b\x85\x32\x89\xe0"
      "\x1a\xa2\x7a\xe8\xb0\x9e\x00\xe7\x9a\xb2\x0b\x0b\x8e\x11\x48\xf4\x9f\xaf"
      "\x2a\xd0\x00\x00\x00\x00\x00\x00\x00\x6f\xa0\x3c\x64\x68\x97\x20\x89\xb3"
      "\x02\xd7\xbf\x60\x23\xcd\xce\xdb\x5e\x01\x25\xeb\xbc\x08\xde\xe5\x10\xcb"
      "\x23\x64\x14\x92\x15\x10\x83\x33\x71\x9a\xcd\x97\xcf\x84\xde\xd4\x02\x24"
      "\xed\xc5\x46\x5a\x93\x2b\x77\xe7\x4e\x80\x2a\x0d\x42\xbc\x60\x99\xad\x23"
      "\x00\x00\x00\x80\x00\x6e\xf6\xc1\xff\x09\x00\x00\x00\x00\x00\x00\x10\xc6"
      "\x3a\x94\x9e\x8b\x79\x55\x39\x4f\xfa\x82\xb8\xe9\x42\xc8\x6e\x00\xf4\xab"
      "\x87\xb1\xbf\xed\xa7\xbe\x58\x66\x02\xd9\x85\x43\x0c\xea\x01\x62\xab\x3f"
      "\xcf\x45\x91\xc9\x26\xab\xfb\x07\x67\x19\x23\x02\x00\x00\x00\xb0\xee\xa2"
      "\x44\x92\xa6\x60\x58\x3e\xec\xb4\x2c\xbc\xd3\xde\x3a\x83\x20\x9d\xa1\x7a"
      "\x0f\xaf\x60\xfd\x6a\xd9\xb9\x7a\xa5\xfa\x68\x48\x03\x66\xc9\xc6\xfd\x6f"
      "\xa5\x04\x3a\xa3\x92\x6b\x81\xe3\xb5\x9c\x95\xc2\x5a\x57\x3d\xc2\xed\xca"
      "\xea\x2b\x1a\x52\x49\x6d\xfc\xaf\x99\x43\x14\x12\xfd\x13\x4a\x99\x63\x82"
      "\xa1\xa0\x4d\x5b\xb9\x24\xcf\xe5\xf3\x18\x54\x18\xd6\x05\xff\xff\x9c\x4d"
      "\x2e\xc7\xc3\x2f\x20\x95\xe6\x3c\x80\xaf\xf9\xfa\x74\x0b\x5b\x76\x32\xf3"
      "\x20\x30\x91\x6f\x89\xc6\xda\xd7\x60\x3f\x2b\xa2\xa7\x90\xd6\x2d\x6f\xae"
      "\xc2\x31\xfe\xd4\x4d\xa4\x92\x8b\x30\x14\x2b\xa1\x1d\xe6\xc5\xd5\x0b\x83"
      "\xc6\xe6\x13\x40\x22\x16\xb5\x05\x4d\x1e\x7c\x13\xb1\x35\x5d\x6f\x4a\x82"
      "\x45\xff\xa4\x99\x7d\xa9\xc7\x7a\xf4\xc0\xeb\x97\xfc\xa5\x85\xec\x6b\xf5"
      "\x83\x51\xd5\x64\xbe\xb6\xd9\x52\xaa\xb9\xc7\x07\x64\xb0\xa8\xa7\x58\x3c"
      "\x90\xb3\x43\x3b\x80\x9b\xdb\x9f\xbd\x48\xbc\x87\x34\x95\xcb\xff\x8a\x32"
      "\x6e\xea\x31\xae\x4e\x0f\x75\x05\xeb\xf6\xc9\xd1\x33\x30\xca\x00\x5a\xce"
      "\x1a\x84\x52\x1f\x14\x51\x8c\x9b\x47\x6f\xcc\xbd\x6c\x71\x20\x16\x21\x98"
      "\x48\x62\x4b\x87\xce\xc2\xdb\xe9\x82\x23\xa0\xeb\x4f\xa3\x9f\x6b\x5c\x02"
      "\xe6\xd6\xd9\x07\x56\xff\x57\x90\x2a\x8f\x57\x00\x00\x00\x00\x97\x00\xcf"
      "\x0b\x4b\x8b\xc2\x29\x41\x33\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00\x8b\xc0\xd9\x55"
      "\x97\x11\xe6\xe8\x86\x1c\x46\x49\x5b\xa5\x85\xa4\xb2\xd0\x2e\xdc\x3e\x28"
      "\xdd\x27\x1c\x89\x62\x49\xed\x85\xb9\x80\x68\x0b\x00\x00\x2b\x43\x5a\xc1"
      "\x5f\xc0\x28\x8d\x9b\x2a\x16\x9c\xdc\xac\xc4\x13\x03\x8d\x01\x00\xa2\xc8"
      "\xcb\x48\x2b\xac\x0a\xc5\x02\xd9\xba\x96\xff\xff\xff\x7f\x00\x00\x10\x00"
      "\x00\x00\x00\x00\x00\x7d\x5a\xd8\x97\xef\x3b\x7c\xda\x42\x01\x3d\x53\x04"
      "\x6d\xa2\x1b\x40\x21\x6e\x14\xba\x2d\x6a\xd5\x65\x6b\xff\xf1\x7a\xdd\xae"
      "\xda\xb2\x5b\x30\x00\x2a\xbb\xba\x7f\xa7\x25\xf3\x84\x00\xbe\x7c\x1f\x00"
      "\x1b\x2c\xd3\x17\x90\x2f\x19\xe3\x85\xbe\x9e\x48\xdc\xcf\xf7\x29\x43\x32"
      "\x82\x83\x06\x89\xda\x6b\x53\xb2\x63\x33\x98\x63\x29\x77\x71\x42\x9d\x12"
      "\x00\x00\x00\x33\x41\xbf\x4a\xba\xca\xc9\x59\x00\xfc\xa0\x49\x3c\xf2\x9b"
      "\x33\xdc\xc9\xff\xff\xff\xff\xff\xff\xff\xd3\x9f\xec\x22\x71\xff\x01\x58"
      "\x96\x46\xef\xd1\xcf\x87\x0c\xd7\xbb\x23\x66\xfd\xe4\x1f\x94\x29\x0c\x2a"
      "\x5f\xf8\x70\xce\x41\xfd\x34\x67\xde\xcb\x05\xcf\xd9\xfc\xb3\x2c\x8e\xd1"
      "\xdb\xd9\xd1\x0a\x64\xc1\x08\x3d\x5e\x71\xb5\x56\x5b\x17\x68\x01\x00\x96"
      "\x9c\x41\x59\x52\x29\xdf\x17\xbc\xad\x70\xfb\x40\x21\x42\x8c\xe9\x70\x27"
      "\x5d\x13\xb7\x81\x00\x78\x8f\x11\xf7\x61\x61\xd4\x6e\xa3\xab\xe0\xfa\x4d"
      "\x30\xdc\x94\xef\x24\x18\x75\xf3\xb4\xce\x02\x32\xfc\xea\x69\xc2\x71\xd7"
      "\xfa\x29\x82\x2a\xea\x68\xa6\x60\xe7\x17\xa0\x4b\xec\xff\x0f\x71\x91\x97"
      "\x72\x4f\x4f\xce\x10\x93\xb6\x2d\x7e\x8c\x71\x23\xd8\xec\x57\x1b\xe5\x4c"
      "\x72\xd9\x78\xcf\x90\x6d\xf0\x04\x2e\x36\xac\xd3\x7d\x7f\x9e\x11\x9f\x2c"
      "\x06\xf8\x15\x31\x2e\x0c\xfe\x22\x2a\x06\xde\x26\x9e\x97\xfb\xb0\x77\x6b"
      "\xf5\x6d\xd0\x22\xc0\x74\xeb\x8a\x32\x2f\xb0\xbf\x47\xc0\xa8\xd1\x54\xb4"
      "\x05\xc3\x7f\xea\xf3\xdd\x95\xf6\xef\x2a\xe5\x82\x78\x61\x05\xcf\xdf\x8b"
      "\xe5\x87\x70\x50\xc9\x13\x01\xbb\x99\x73\x16\xdb\xf1\x78\x66\xfb\x84\xd4"
      "\x17\x37\x31\xef\xe8\x95\x01\x2f\x1c\x55\x60\x92\x6e\x90\x10\x9b\x59\x85"
      "\x02\xd3\xe9\x59\xef\xc7\x1f\x66\x5c\x4d\x75\xcf\x24\x58\xe3\x54\x6c\x1c"
      "\x77\x6d\xa6\x4f\xb5\xab\xee\x0a\xcf\xd2\x35\xf2\xf4\x63\x2c\x90\x62\xec"
      "\xe8\x4c\x99\xa0\x61\x88\x7a\x20\x63\x9b\x41\xc8\xc1\x2e\xe8\x6c\x50\x80"
      "\x40\x42\xb3\xfb\x5a\xac\x51\x8a\x75\xf9\xe7\xd7\x10\x1d\x5e\x18\x6c\x48"
      "\x9b\x3a\x06\xfb\x99\xe0\xaa\x7f\x23\xa0\x54\xde\x2f\x4d\x92\xd6\xbd\x72"
      "\xee\x2c\x9f\xdc\x75\xaa\xaf\x1e\x3e\x48\x3b\x4a\xd0\x55\x73\xaf\x40\x32"
      "\x69\x93\x94\x7d\x9a\x63\x1b\xcb\xf3\x58\x37\x84\xac\xbd\xa2\x16\x55\x0d"
      "\x7a\xec\x6b\x79\xe3\x0c\xbd\x12\x8f\x54\xc2\xd3\x33\x54\x57\xac\xf3\x73"
      "\x31\x76\x6e\x47\x23\x91\xe3\x58\xc3\xb3\x77\x32\x7a\xc9\xec\xc3\x4f\x24"
      "\xc9\xae\x15\x3e\xc6\x0a\xc0\x69\x4d\xc5\x5b\xff\x9f\x5f\x45\xf9\x04\x00"
      "\x00\x00\x00\x00\x00\x00\xd6\xb2\xc5\xea\x13\x93\xfd\xf2\x42\x85\xbf\x16"
      "\xb9\x9c\x9c\xc0\xad\x18\x57\x21\x6f\x01\x00\x00\x80\x00\x00\x00\x00\x4f"
      "\xeb\xb3\xdf\x46\x4b\xfe\x0f\x7f\x3e\xe9\xaf\xe7\xbe\xfb\x89\xd2\x77\x73"
      "\x99\xf5\x87\x4c\x55\x3a\xeb\x37\x29\xcf\xfe\x86\xe6\x69\x64\xae\x09\xbb"
      "\x6d\x16\x31\x18\xe4\xcb\xe0\x24\xfd\x45\x00\xf8\xff\x07\x00\x00\x00\x00"
      "\xcc\x9d\x80\x46\xc2\x16\xc1\xf8\x95\x77\x8c\xb2\x51\x22\xa2\xa9\xf9\xb4"
      "\x44\xae\xad\xea\x2a\x40\xda\x8d\xac\xcf\x08\x08\x42\xa4\x86\x72\x17\x37"
      "\x39\x0c\xbf\x3a\x74\xcb\x20\x03\x01\x6f\x15\x14\x21\x6b\xdf\x57\xd2\xa4"
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      "\x8b\xff\x74\xea\x1b\x0e\x65\x1a\x6c\xae\x94\x19\x09\x62\x48\xa0\xe4\x15"
      "\x73\x82\x7a\xd6\x0f\xaf\xce\x6e\x65\x40\x73\x4c\x1f\x23\xf7\x53\x37\xd8"
      "\x36\xc3\x14\x97\xe8\x11\x29\x69\xa0\x39\xd6\x5a\xa2\x97\xe2\xb0\x46\xb5"
      "\xf4\xd1\x11\x16\xa8\x9f\x9f\x65\x69\x3d\x4d\xc3\xe7\x0f\xbf\xe0\xb2\x04"
      "\x4f\xdb\x3f\x87\xe8\x87\xd1\xda\xae\x8e\x38\xa0\xc1\x9f\x66\x8f\x77\x6e"
      "\x19\xa0\x2b\xb2\x44\x9e\xe4\x38\x4f\x65\x36\x87\x9c\x85\xd7\xe4\x1b\xc0"
      "\x27\x6e\xe2\xb1\x25\xd4\x1f\xf3\x58\x32\x33\x11\x70\x3e\xc0\x1d\x64\xa5"
      "\x73\xbd\xeb\x75\xbd\xcc\x87\xd0\x1d\xe3\x83\x65\xab\x92\x22\x71\x3d\x2d"
      "\x16\x40\xa7\x42\xd6\x2f\xef\xb5\x40\x3b\x2e\xd9\x96\x9c\x32\xa0\x84\x1e"
      "\x8c\x36\xb0\x10\x7b\xb8\x88\xeb\x14\xac\x62\xe6\xd4\xbd\xfa\xeb\x9e\xe7"
      "\x43\x01\x00\xbf\x38\x25\xa1\x99\x6c\x89\x97\xce\x28\x5e\xdf\x1d\x27\x7e"
      "\xd7\x03\xf5\x60\x46\x04\x17\xbf\xe7\x02\xaf\x83\x3e\x83\xc5\xb9\x87\xbe"
      "\xfb\x6d\x1f\xcf\x76\x5a\xb7\xea\x53\x7d\x9d\xaf\xb6\x22\xa1\xba\x86\x86"
      "\xcb\x15\x09\x63\xb8\x44\x70\x36\x49\x42\xe9\x0d\x1c\xf8\x56\xce\xad\x86"
      "\x4f\x5e\x38\xc8\x3b\x9e\xd8\x6c\xc5\x72\x5a\x20\x29\x9c\xe5\x12\xb1\x65"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
      4081);
  *(uint64_t*)0x20000090 = 0x20000380;
  memcpy((void*)0x20000380, "GPL\000", 4);
  *(uint32_t*)0x20000098 = 0;
  *(uint32_t*)0x2000009c = 0;
  *(uint64_t*)0x200000a0 = 0;
  *(uint32_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000ac = 0;
  memset((void*)0x200000b0, 0, 16);
  *(uint32_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c4 = 0;
  *(uint32_t*)0x200000c8 = -1;
  *(uint32_t*)0x200000cc = 8;
  *(uint64_t*)0x200000d0 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x200000d8 = 8;
  *(uint32_t*)0x200000dc = 0x10;
  *(uint64_t*)0x200000e0 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint32_t*)0x200000e8 = 0x10;
  *(uint32_t*)0x200000ec = 0;
  *(uint32_t*)0x200000f0 = -1;
  *(uint32_t*)0x200000f4 = 0;
  *(uint64_t*)0x200000f8 = 0;
  *(uint64_t*)0x20000100 = 0;
  *(uint32_t*)0x20000108 = 0x10;
  *(uint32_t*)0x2000010c = 0;
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000080ul, /*size=*/0x2eul);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000080 = 0x20000040;
  memcpy((void*)0x20000040, "kfree\000", 6);
  *(uint32_t*)0x20000088 = r[2];
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000080ul, /*size=*/0x10ul);
}
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;
}