// https://syzkaller.appspot.com/bug?id=32b8845016c9629a547b70637643005ab3015d18
// 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/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>

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 (;;) {
      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[9] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 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)) {
  }
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 00} (length 0x9)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000000, "./config\000", 9);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000000ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 00} (length 0x9)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {63 6f 6e 66 69 67 66 73 00} (length 0x9)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000000, "./config\000", 9);
  memcpy((void*)0x200000000040, "configfs\000", 9);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000000ul,
          /*type=*/0x200000000040ul, /*flags=*/0ul, /*data=*/0ul);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 00} (length 0x1b)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000080, "./config/cluster/mycluster\000", 27);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000080ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 6e 6f 64 65 2f 6d 79 6e 6f 64 65 00} (length
  //      0x27)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000100, "./config/cluster/mycluster/node/mynode\000",
         39);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000100ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 6e 6f 64 65 2f 6d 79 6e 6f 64 65 2f 69 70 76 34
  //      5f 61 64 64 72 65 73 73 00} (length 0x34)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000140,
         "./config/cluster/mycluster/node/mynode/ipv4_address\000", 52);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000140ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 32 37 2e 30 2e 30 2e 31 00} (length 0xa)
  //    }
  //    count: len = 0x9 (8 bytes)
  //  ]
  memcpy((void*)0x200000000180, "127.0.0.1\000", 10);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x200000000180ul, /*count=*/9ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[0]);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 6e 6f 64 65 2f 6d 79 6e 6f 64 65 2f 69 70 76 34
  //      5f 70 6f 72 74 00} (length 0x31)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x2000000001c0,
         "./config/cluster/mycluster/node/mynode/ipv4_port\000", 49);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x2000000001c0ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {37 37 37 37 00} (length 0x5)
  //    }
  //    count: len = 0x4 (8 bytes)
  //  ]
  memcpy((void*)0x200000000200, "7777\000", 5);
  syscall(__NR_write, /*fd=*/r[1], /*buf=*/0x200000000200ul, /*count=*/4ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[1]);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 6e 6f 64 65 2f 6d 79 6e 6f 64 65 2f 6e 75 6d 00}
  //      (length 0x2b)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000240,
         "./config/cluster/mycluster/node/mynode/num\000", 43);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000240ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[2] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {30 00} (length 0x2)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memcpy((void*)0x200000000280, "0\000", 2);
  syscall(__NR_write, /*fd=*/r[2], /*buf=*/0x200000000280ul, /*count=*/1ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[2]);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 6e 6f 64 65 2f 6d 79 6e 6f 64 65 2f 6c 6f 63 61
  //      6c 00} (length 0x2d)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x2000000002c0,
         "./config/cluster/mycluster/node/mynode/local\000", 45);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x2000000002c0ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[3] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 00} (length 0x2)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memcpy((void*)0x200000000300, "1\000", 2);
  syscall(__NR_write, /*fd=*/r[3], /*buf=*/0x200000000300ul, /*count=*/1ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[3]);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 68 65 61 72 74 62 65 61 74 2f 6d 79 72 65 67 69
  //      6f 6e 00} (length 0x2e)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000340,
         "./config/cluster/mycluster/heartbeat/myregion\000", 46);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000340ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 68 65 61 72 74 62 65 61 74 2f 6d 79 72 65 67 69
  //      6f 6e 2f 62 6c 6f 63 6b 5f 62 79 74 65 73 00} (length 0x3a)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000380,
         "./config/cluster/mycluster/heartbeat/myregion/block_bytes\000", 58);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000380ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[4] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {35 31 32 00} (length 0x4)
  //    }
  //    count: len = 0x3 (8 bytes)
  //  ]
  memcpy((void*)0x2000000003c0, "512\000", 4);
  syscall(__NR_write, /*fd=*/r[4], /*buf=*/0x2000000003c0ul, /*count=*/3ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[4]);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 68 65 61 72 74 62 65 61 74 2f 6d 79 72 65 67 69
  //      6f 6e 2f 62 6c 6f 63 6b 73 00} (length 0x35)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000400,
         "./config/cluster/mycluster/heartbeat/myregion/blocks\000", 53);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000400ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[5] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {32 35 35 00} (length 0x4)
  //    }
  //    count: len = 0x3 (8 bytes)
  //  ]
  memcpy((void*)0x200000000440, "255\000", 4);
  syscall(__NR_write, /*fd=*/r[5], /*buf=*/0x200000000440ul, /*count=*/3ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[5]);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 68 65 61 72 74 62 65 61 74 2f 6d 79 72 65 67 69
  //      6f 6e 2f 73 74 61 72 74 5f 62 6c 6f 63 6b 00} (length 0x3a)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000480,
         "./config/cluster/mycluster/heartbeat/myregion/start_block\000", 58);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000480ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[6] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 00} (length 0x2)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memcpy((void*)0x2000000004c0, "1\000", 2);
  syscall(__NR_write, /*fd=*/r[6], /*buf=*/0x2000000004c0ul, /*count=*/1ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[6]);
  //  mknodat arguments: [
  //    dirfd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 6c 6f 6f 70 30 00} (length 0x8)
  //    }
  //    mode: mknod_mode = 0x61c0 (8 bytes)
  //    dev: int32 = 0x700 (4 bytes)
  //  ]
  memcpy((void*)0x200000000540, "./loop0\000", 8);
  syscall(__NR_mknodat, /*dirfd=*/0xffffff9c, /*file=*/0x200000000540ul,
          /*mode=S_IFBLK|0x1c0*/ 0x61c0ul, /*dev=*/0x700);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 6c 6f 6f 70 30 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000540, "./loop0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000540ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[7] = res;
  //  ioctl$LOOP_SET_FD arguments: [
  //    fd: fd_loop (resource)
  //    cmd: const = 0x4c00 (4 bytes)
  //    arg: fd (resource)
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[7], /*cmd=*/0x4c00, /*arg=*/(intptr_t)-1);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 63 6c 75 73 74 65 72 2f 6d 79 63
  //      6c 75 73 74 65 72 2f 68 65 61 72 74 62 65 61 74 2f 6d 79 72 65 67 69
  //      6f 6e 2f 64 65 76 00} (length 0x32)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000580,
         "./config/cluster/mycluster/heartbeat/myregion/dev\000", 50);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000580ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[8] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {33 00} (length 0x2)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memcpy((void*)0x2000000005c0, "3\000", 2);
  syscall(__NR_write, /*fd=*/r[8], /*buf=*/0x2000000005c0ul, /*count=*/1ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}