// 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 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[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  *(uint32_t*)0x20000840 = 3;
  *(uint32_t*)0x20000844 = 0x11;
  *(uint64_t*)0x20000848 = 0x20000280;
  memcpy((void*)0x20000280,
         "\x18\x02\x00\x00\x41\x0b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18\x07"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18\x08\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18\x09\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x36\x09\x02\x00\xe3"
         "\xff\xff\xff\x61\x10\x00\x00\x00\x00\x00\x00\x85\x00\x00\x00\x9e\x00"
         "\x00\x00\xa6\x00\x02\x00\x00\x00\x00\x00\x61\x00\x00\x20\x00\x00\x00"
         "\x00\x85\x00\x00\x00\x23\x00\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00",
         136);
  *(uint64_t*)0x20000850 = 0x20000800;
  memcpy((void*)0x20000800, "GPL\000", 4);
  *(uint32_t*)0x20000858 = 0;
  *(uint32_t*)0x2000085c = 0;
  *(uint64_t*)0x20000860 = 0;
  *(uint32_t*)0x20000868 = 0;
  *(uint32_t*)0x2000086c = 0;
  memset((void*)0x20000870, 0, 16);
  *(uint32_t*)0x20000880 = 0;
  *(uint32_t*)0x20000884 = 0x25;
  *(uint32_t*)0x20000888 = 0;
  *(uint32_t*)0x2000088c = 0;
  *(uint64_t*)0x20000890 = 0;
  *(uint32_t*)0x20000898 = 0;
  *(uint32_t*)0x2000089c = 0;
  *(uint64_t*)0x200008a0 = 0;
  *(uint32_t*)0x200008a8 = 0;
  *(uint32_t*)0x200008ac = 0;
  *(uint32_t*)0x200008b0 = 0;
  *(uint32_t*)0x200008b4 = 0;
  *(uint64_t*)0x200008b8 = 0;
  res = syscall(__NR_bpf, 5ul, 0x20000840ul, 0x80ul);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000200 = r[0];
  *(uint32_t*)0x20000204 = 0;
  *(uint32_t*)0x20000208 = 0x7d;
  *(uint32_t*)0x2000020c = 0x1000;
  *(uint64_t*)0x20000210 = 0x20000080;
  memcpy(
      (void*)0x20000080,
      "\xae\x03\x6a\xba\x71\x68\xfd\x7a\x10\x53\x02\xbf\x11\xb1\x49\x3e\x45\xf7"
      "\x40\x0e\x0a\x3e\x85\xb7\xd4\x1b\xaf\xce\x36\x31\x3b\xf8\x1b\x03\x6c\x33"
      "\x94\xc6\x97\xda\xc6\x8e\x63\xd2\xf7\xa2\x56\xa6\x02\x36\x01\x1c\x5e\xec"
      "\xcc\xbc\x1e\xed\x91\xe3\x1f\x12\xaa\xf6\x95\xa5\x63\x66\x0f\x06\x16\x57"
      "\x97\xa5\xd7\x15\x89\x6a\x15\x8a\xff\x39\x5b\x9a\x0d\x74\x0d\x78\xa9\xe0"
      "\x1b\x78\xb1\xab\x6b\x28\x7b\x50\xd3\x2d\xb0\x86\x8d\x35\xb5\xc1\xba\x2d"
      "\x88\xe3\x74\x75\x51\xad\x4f\xa4\xbd\xab\x5f\xc9\x63\xa7\xf4\xc3\x07",
      125);
  *(uint64_t*)0x20000218 = 0x200008c0;
  *(uint32_t*)0x20000220 = 0;
  *(uint32_t*)0x20000224 = 0;
  *(uint32_t*)0x20000228 = 0x9b;
  *(uint32_t*)0x2000022c = 0x74;
  *(uint64_t*)0x20000230 = 0x20000100;
  memcpy(
      (void*)0x20000100,
      "\x49\x6a\x90\xe4\x5c\xee\xa8\xf5\xc4\xb0\x01\xc1\x95\x85\x1b\x70\x45\x04"
      "\xe6\x37\x34\xb4\x1d\xa7\x86\x1d\xb9\x20\x17\x06\x7c\xe6\x27\x9e\xe5\x0b"
      "\x80\x00\xb2\x05\x37\x4a\xaf\x3d\x40\x58\xc2\x7f\x69\xc7\x88\x8a\x76\x47"
      "\x68\x72\xbc\x4b\xdf\xf2\x21\xbe\x93\x9a\x26\xc0\x7d\xed\xed\xac\xe8\x0f"
      "\x4f\x22\xd2\x7c\xda\x2a\x2e\x2e\xb6\xf1\x79\x1f\x39\x43\x90\x5c\xd0\xe7"
      "\xe9\xdf\x43\x23\x42\x21\xc9\x80\x8b\x4a\x35\x3c\x7b\xb1\x48\x59\x6d\x31"
      "\xd9\xff\x00\xdd\x59\x33\xad\x67\xdf\xf1\x6e\x21\xe5\x6c\xd6\x4a\xfd\xfc"
      "\x63\x73\x35\x5e\xb2\xc3\xbc\x0c\xf1\x5a\x63\xf6\x73\x38\xf8\x69\x21\xe4"
      "\xcf\x10\x72\xe2\xef\xfd\x42\xb1\xc2\xb5\xd0",
      155);
  *(uint64_t*)0x20000238 = 0x200001c0;
  memcpy((void*)0x200001c0,
         "\xee\x48\x96\x49\xda\xda\x13\xf1\x85\x35\x43\x17\x56\xee\x27\x39\x50"
         "\xa9",
         18);
  *(uint32_t*)0x20000240 = 1;
  *(uint32_t*)0x20000244 = 6;
  syscall(__NR_bpf, 0xaul, 0x20000200ul, 0x25ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  loop();
  return 0;
}