// https://syzkaller.appspot.com/bug?id=1ff6c1abe140383148dea077ca2cbef65140d84e
// 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 <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.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 __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

#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 FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

#define USLEEP_FORKED_CHILD (3 * 50 * 1000)

static long handle_clone_ret(long ret)
{
  if (ret != 0) {
    __atomic_store_n(&clone_ongoing, 0, __ATOMIC_RELAXED);
    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;
  __atomic_store_n(&clone_ongoing, 1, __ATOMIC_RELAXED);
  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++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      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;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  NONFAILING(*(uint32_t*)0x20000340 = 2);
  NONFAILING(*(uint32_t*)0x20000344 = 4);
  NONFAILING(*(uint32_t*)0x20000348 = 8);
  NONFAILING(*(uint32_t*)0x2000034c = 1);
  NONFAILING(*(uint32_t*)0x20000350 = 0x80);
  NONFAILING(*(uint32_t*)0x20000354 = 0);
  NONFAILING(*(uint32_t*)0x20000358 = 0);
  NONFAILING(memset((void*)0x2000035c, 0, 16));
  NONFAILING(*(uint32_t*)0x2000036c = 0);
  NONFAILING(*(uint32_t*)0x20000370 = 0);
  NONFAILING(*(uint32_t*)0x20000374 = 0);
  NONFAILING(*(uint32_t*)0x20000378 = 0);
  NONFAILING(*(uint32_t*)0x2000037c = 0);
  NONFAILING(*(uint64_t*)0x20000380 = 0);
  res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000340ul, /*size=*/0x48ul);
  if (res != -1)
    r[0] = res;
  NONFAILING(*(uint32_t*)0x200004c0 = 0x11);
  NONFAILING(*(uint32_t*)0x200004c4 = 0x18);
  NONFAILING(*(uint64_t*)0x200004c8 = 0x20000c40);
  NONFAILING(*(uint8_t*)0x20000c40 = 0x18);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c41, 0, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c41, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c42 = 0);
  NONFAILING(*(uint32_t*)0x20000c44 = 0);
  NONFAILING(*(uint8_t*)0x20000c48 = 0);
  NONFAILING(*(uint8_t*)0x20000c49 = 0);
  NONFAILING(*(uint16_t*)0x20000c4a = 0);
  NONFAILING(*(uint32_t*)0x20000c4c = 0);
  NONFAILING(*(uint8_t*)0x20000c50 = 0x18);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c51, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c51, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c52 = 0);
  NONFAILING(*(uint32_t*)0x20000c54 = 0x25782020);
  NONFAILING(*(uint8_t*)0x20000c58 = 0);
  NONFAILING(*(uint8_t*)0x20000c59 = 0);
  NONFAILING(*(uint16_t*)0x20000c5a = 0);
  NONFAILING(*(uint32_t*)0x20000c5c = 0x20202000);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c60, 3, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c60, 3, 3, 2));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c60, 3, 5, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c61, 0xa, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c61, 1, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c62 = 0xfff8);
  NONFAILING(*(uint32_t*)0x20000c64 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c68, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c68, 1, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c68, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c69, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c69, 0xa, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c6a = 0);
  NONFAILING(*(uint32_t*)0x20000c6c = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c70, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c70, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c70, 0, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c71, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c71, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c72 = 0);
  NONFAILING(*(uint32_t*)0x20000c74 = 0xfffffff8);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c78, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c78, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c78, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c79, 2, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c79, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c7a = 0);
  NONFAILING(*(uint32_t*)0x20000c7c = 8);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c80, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c80, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c80, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c81, 3, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c81, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c82 = 0);
  NONFAILING(*(uint32_t*)0x20000c84 = 0);
  NONFAILING(*(uint8_t*)0x20000c88 = 0x85);
  NONFAILING(*(uint8_t*)0x20000c89 = 0);
  NONFAILING(*(uint16_t*)0x20000c8a = 0);
  NONFAILING(*(uint32_t*)0x20000c8c = 6);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c90, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c90, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c90, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c91, 8, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c91, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c92 = 0);
  NONFAILING(*(uint32_t*)0x20000c94 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c98, 3, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c98, 3, 3, 2));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c98, 3, 5, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c99, 0xa, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000c99, 8, 4, 4));
  NONFAILING(*(uint16_t*)0x20000c9a = 0xfff8);
  NONFAILING(*(uint32_t*)0x20000c9c = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca0, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca0, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca0, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca1, 8, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca1, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000ca2 = 0);
  NONFAILING(*(uint32_t*)0x20000ca4 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca8, 3, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca8, 3, 3, 2));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca8, 3, 5, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca9, 0xa, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ca9, 8, 4, 4));
  NONFAILING(*(uint16_t*)0x20000caa = 0xfff0);
  NONFAILING(*(uint32_t*)0x20000cac = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb0, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb0, 1, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb0, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb1, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb1, 0xa, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cb2 = 0);
  NONFAILING(*(uint32_t*)0x20000cb4 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb8, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb8, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb8, 0, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb9, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cb9, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cba = 0);
  NONFAILING(*(uint32_t*)0x20000cbc = 0xfffffff8);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc0, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc0, 1, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc0, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc1, 4, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc1, 0xa, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cc2 = 0);
  NONFAILING(*(uint32_t*)0x20000cc4 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc8, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc8, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc8, 0, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc9, 4, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cc9, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cca = 0);
  NONFAILING(*(uint32_t*)0x20000ccc = 0xfffffff0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd0, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd0, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd0, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd1, 2, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd1, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cd2 = 0);
  NONFAILING(*(uint32_t*)0x20000cd4 = 8);
  NONFAILING(*(uint8_t*)0x20000cd8 = 0x18);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd9, 3, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000cd9, 2, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cda = 0);
  NONFAILING(*(uint32_t*)0x20000cdc = r[0]);
  NONFAILING(*(uint8_t*)0x20000ce0 = 0);
  NONFAILING(*(uint8_t*)0x20000ce1 = 0);
  NONFAILING(*(uint16_t*)0x20000ce2 = 0);
  NONFAILING(*(uint32_t*)0x20000ce4 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ce8, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ce8, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ce8, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ce9, 5, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000ce9, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x20000cea = 0);
  NONFAILING(*(uint32_t*)0x20000cec = 8);
  NONFAILING(*(uint8_t*)0x20000cf0 = 0x85);
  NONFAILING(*(uint8_t*)0x20000cf1 = 0);
  NONFAILING(*(uint16_t*)0x20000cf2 = 0);
  NONFAILING(*(uint32_t*)0x20000cf4 = 0x69);
  NONFAILING(*(uint8_t*)0x20000cf8 = 0x95);
  NONFAILING(*(uint8_t*)0x20000cf9 = 0);
  NONFAILING(*(uint16_t*)0x20000cfa = 0);
  NONFAILING(*(uint32_t*)0x20000cfc = 0);
  NONFAILING(*(uint64_t*)0x200004d0 = 0x20000600);
  NONFAILING(memcpy((void*)0x20000600, "GPL\000", 4));
  NONFAILING(*(uint32_t*)0x200004d8 = 0);
  NONFAILING(*(uint32_t*)0x200004dc = 0);
  NONFAILING(*(uint64_t*)0x200004e0 = 0);
  NONFAILING(*(uint32_t*)0x200004e8 = 0);
  NONFAILING(*(uint32_t*)0x200004ec = 0);
  NONFAILING(memset((void*)0x200004f0, 0, 16));
  NONFAILING(*(uint32_t*)0x20000500 = 0);
  NONFAILING(*(uint32_t*)0x20000504 = 0);
  NONFAILING(*(uint32_t*)0x20000508 = 0);
  NONFAILING(*(uint32_t*)0x2000050c = 0);
  NONFAILING(*(uint64_t*)0x20000510 = 0);
  NONFAILING(*(uint32_t*)0x20000518 = 0);
  NONFAILING(*(uint32_t*)0x2000051c = 0);
  NONFAILING(*(uint64_t*)0x20000520 = 0);
  NONFAILING(*(uint32_t*)0x20000528 = 0);
  NONFAILING(*(uint32_t*)0x2000052c = 0);
  NONFAILING(*(uint32_t*)0x20000530 = 0);
  NONFAILING(*(uint32_t*)0x20000534 = 0);
  NONFAILING(*(uint64_t*)0x20000538 = 0);
  NONFAILING(*(uint64_t*)0x20000540 = 0);
  NONFAILING(*(uint32_t*)0x20000548 = 0);
  NONFAILING(*(uint32_t*)0x2000054c = 0);
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200004c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[1] = res;
  NONFAILING(*(uint64_t*)0x20000300 = 0x200002c0);
  NONFAILING(memcpy((void*)0x200002c0, "ext4_free_inode\000", 16));
  NONFAILING(*(uint32_t*)0x20000308 = r[1]);
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000300ul, /*size=*/0x10ul);
  NONFAILING(*(uint32_t*)0x20000340 = 2);
  NONFAILING(*(uint32_t*)0x20000344 = 4);
  NONFAILING(*(uint32_t*)0x20000348 = 8);
  NONFAILING(*(uint32_t*)0x2000034c = 1);
  NONFAILING(*(uint32_t*)0x20000350 = 0x80);
  NONFAILING(*(uint32_t*)0x20000354 = -1);
  NONFAILING(*(uint32_t*)0x20000358 = 0);
  NONFAILING(memset((void*)0x2000035c, 0, 16));
  NONFAILING(*(uint32_t*)0x2000036c = 0);
  NONFAILING(*(uint32_t*)0x20000370 = -1);
  NONFAILING(*(uint32_t*)0x20000374 = 0);
  NONFAILING(*(uint32_t*)0x20000378 = 0);
  NONFAILING(*(uint32_t*)0x2000037c = 0);
  NONFAILING(*(uint64_t*)0x20000380 = 0);
  res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000340ul, /*size=*/0x48ul);
  if (res != -1)
    r[2] = res;
  NONFAILING(*(uint32_t*)0x20000480 = r[2]);
  syscall(__NR_bpf, /*cmd=*/0x16ul, /*arg=*/0x20000480ul, /*size=*/4ul);
  NONFAILING(*(uint32_t*)0x200004c0 = 0x11);
  NONFAILING(*(uint32_t*)0x200004c4 = 0x18);
  NONFAILING(*(uint64_t*)0x200004c8 = 0x200001c0);
  NONFAILING(
      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));
  NONFAILING(*(uint32_t*)0x2000021c = r[2]);
  NONFAILING(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));
  NONFAILING(*(uint64_t*)0x200004d0 = 0x20000600);
  NONFAILING(memcpy((void*)0x20000600, "GPL\000", 4));
  NONFAILING(*(uint32_t*)0x200004d8 = 0);
  NONFAILING(*(uint32_t*)0x200004dc = 0);
  NONFAILING(*(uint64_t*)0x200004e0 = 0);
  NONFAILING(*(uint32_t*)0x200004e8 = 0);
  NONFAILING(*(uint32_t*)0x200004ec = 0);
  NONFAILING(memset((void*)0x200004f0, 0, 16));
  NONFAILING(*(uint32_t*)0x20000500 = 0);
  NONFAILING(*(uint32_t*)0x20000504 = 0);
  NONFAILING(*(uint32_t*)0x20000508 = 0);
  NONFAILING(*(uint32_t*)0x2000050c = 0);
  NONFAILING(*(uint64_t*)0x20000510 = 0);
  NONFAILING(*(uint32_t*)0x20000518 = 0);
  NONFAILING(*(uint32_t*)0x2000051c = 0);
  NONFAILING(*(uint64_t*)0x20000520 = 0);
  NONFAILING(*(uint32_t*)0x20000528 = 0);
  NONFAILING(*(uint32_t*)0x2000052c = 0);
  NONFAILING(*(uint32_t*)0x20000530 = 0);
  NONFAILING(*(uint32_t*)0x20000534 = 0);
  NONFAILING(*(uint64_t*)0x20000538 = 0);
  NONFAILING(*(uint64_t*)0x20000540 = 0);
  NONFAILING(*(uint32_t*)0x20000548 = 0);
  NONFAILING(*(uint32_t*)0x2000054c = 0);
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200004c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[3] = res;
  NONFAILING(*(uint64_t*)0x200001c0 = 0x20000000);
  NONFAILING(memcpy((void*)0x20000000, "kfree\000", 6));
  NONFAILING(*(uint32_t*)0x200001c8 = r[3]);
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200001c0ul, /*size=*/0x10ul);
  NONFAILING(syz_clone(
      /*flags=CLONE_NEWTIME|CLONE_NEWNET|CLONE_SETTLS|CLONE_PTRACE|CLONE_FS*/
      0x40082280, /*stack=*/0, /*stack_len=*/0, /*parentid=*/0, /*childtid=*/0,
      /*tls=*/0));
}
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);
  install_segv_handler();
  use_temporary_dir();
  loop();
  return 0;
}