// https://syzkaller.appspot.com/bug?id=ffdf2711c935a1b72550b3334420d7a3b168f335
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/prctl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void execute_one();
extern unsigned long long procid;

static void loop()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      execute_one();
      int fd;
      for (fd = 3; fd < 30; fd++)
        close(fd);
      doexit(0);
    }

    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid) {
        break;
      }
      usleep(1000);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill(-pid, SIGKILL);
      kill(pid, SIGKILL);
      while (waitpid(-1, &status, __WALL) != pid) {
      }
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff};
void execute_one()
{
  long res = 0;
  res = syscall(__NR_inotify_init1, 0);
  if (res != -1)
    r[0] = res;
  syscall(__NR_fcntl, r[0], 8, -1);
  res = syscall(__NR_fcntl, r[0], 0x10, 0x2045fff8);
  if (res != -1)
    r[1] = *(uint32_t*)0x2045fffc;
  syscall(__NR_ptrace, 0x4206, r[1], 0, 0);
  syscall(__NR_ptrace, 0x4207, r[1]);
  syscall(__NR_ptrace, 0x20, r[1], 0, 0);
  res = syscall(__NR_socket, 0xf, 3, 2);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20f56000 = 0;
  *(uint32_t*)0x20f56008 = 0;
  *(uint64_t*)0x20f56010 = 0x208feff0;
  *(uint64_t*)0x208feff0 = 0x20000040;
  *(uint8_t*)0x20000040 = 2;
  *(uint8_t*)0x20000041 = 3;
  *(uint8_t*)0x20000042 = 0;
  *(uint8_t*)0x20000043 = 9;
  *(uint16_t*)0x20000044 = 0x10;
  *(uint16_t*)0x20000046 = 0;
  *(uint32_t*)0x20000048 = 0;
  *(uint32_t*)0x2000004c = 0;
  *(uint16_t*)0x20000050 = 2;
  *(uint16_t*)0x20000052 = 0x13;
  *(uint8_t*)0x20000054 = 2;
  *(uint8_t*)0x20000055 = 0;
  *(uint16_t*)0x20000056 = 0;
  *(uint32_t*)0x20000058 = 0;
  *(uint32_t*)0x2000005c = 0;
  *(uint16_t*)0x20000060 = 5;
  *(uint16_t*)0x20000062 = 6;
  *(uint8_t*)0x20000064 = 0;
  *(uint8_t*)0x20000065 = 0;
  *(uint16_t*)0x20000066 = 0;
  *(uint16_t*)0x20000068 = 0xa;
  *(uint16_t*)0x2000006a = htobe16(0);
  *(uint32_t*)0x2000006c = 0;
  *(uint8_t*)0x20000070 = 0;
  *(uint8_t*)0x20000071 = 0;
  *(uint8_t*)0x20000072 = 0;
  *(uint8_t*)0x20000073 = 0;
  *(uint8_t*)0x20000074 = 0;
  *(uint8_t*)0x20000075 = 0;
  *(uint8_t*)0x20000076 = 0;
  *(uint8_t*)0x20000077 = 0;
  *(uint8_t*)0x20000078 = 0;
  *(uint8_t*)0x20000079 = 0;
  *(uint8_t*)0x2000007a = 0;
  *(uint8_t*)0x2000007b = 0;
  *(uint8_t*)0x2000007c = 0;
  *(uint8_t*)0x2000007d = 0;
  *(uint8_t*)0x2000007e = 0;
  *(uint8_t*)0x2000007f = 0;
  *(uint32_t*)0x20000080 = 0;
  *(uint16_t*)0x20000088 = 2;
  *(uint16_t*)0x2000008a = 1;
  *(uint32_t*)0x2000008c = htobe32(0);
  *(uint8_t*)0x20000090 = 0;
  *(uint8_t*)0x20000091 = 0;
  *(uint8_t*)0x20000092 = 0;
  *(uint8_t*)0x20000093 = 2;
  *(uint32_t*)0x20000094 = 0;
  *(uint16_t*)0x20000098 = 5;
  *(uint16_t*)0x2000009a = 5;
  *(uint8_t*)0x2000009c = 0;
  *(uint8_t*)0x2000009d = 0;
  *(uint16_t*)0x2000009e = 0;
  *(uint16_t*)0x200000a0 = 0xa;
  *(uint16_t*)0x200000a2 = htobe16(0);
  *(uint32_t*)0x200000a4 = 0;
  *(uint8_t*)0x200000a8 = -1;
  *(uint8_t*)0x200000a9 = 1;
  *(uint8_t*)0x200000aa = 0;
  *(uint8_t*)0x200000ab = 0;
  *(uint8_t*)0x200000ac = 0;
  *(uint8_t*)0x200000ad = 0;
  *(uint8_t*)0x200000ae = 0;
  *(uint8_t*)0x200000af = 0;
  *(uint8_t*)0x200000b0 = 0;
  *(uint8_t*)0x200000b1 = 0;
  *(uint8_t*)0x200000b2 = 0;
  *(uint8_t*)0x200000b3 = 0;
  *(uint8_t*)0x200000b4 = 0;
  *(uint8_t*)0x200000b5 = 0;
  *(uint8_t*)0x200000b6 = 0;
  *(uint8_t*)0x200000b7 = 1;
  *(uint32_t*)0x200000b8 = 0;
  *(uint64_t*)0x208feff8 = 0x80;
  *(uint64_t*)0x20f56018 = 1;
  *(uint64_t*)0x20f56020 = 0;
  *(uint64_t*)0x20f56028 = 0;
  *(uint32_t*)0x20f56030 = 0;
  syscall(__NR_sendmsg, r[2], 0x20f56000, 0);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    loop();
  }
}