// https://syzkaller.appspot.com/bug?id=edc4bdcf9437492a8287e70f7c3c4231511fe690
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef SYS_compat_50_mknod
#define SYS_compat_50_mknod 14
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_open
#define SYS_open 5
#endif
#ifndef SYS_writev
#define SYS_writev 121
#endif

static unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
  memcpy((void*)0x20000180, "./file0\000", 8);
  syscall(SYS_compat_50_mknod, 0x20000180ul, 0x2004ul, 0x403);
  memcpy((void*)0x20000000, "./file0\000", 8);
  res = syscall(SYS_open, 0x20000000ul, 0xaul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000140 = 0x200000c0;
  memcpy(
      (void*)0x200000c0,
      "\x74\x92\x70\xf0\xeb\x35\xda\x9b\xf1\x07\xf5\x01\x50\xc9\x6a\xac\xff\xff"
      "\xff\xff\xff\xff\x9a\x4e\x18\xea\x4e\x25\xde\xbb\x7c\x62\x1c\xea\x62\x20"
      "\xec\x53\x1d\x57\xec\x88\x21\xa3\x96\x5d\x7e\xdd\x3b\x01\x4a\x14\x58\x18"
      "\xc1\x90\x9b\xdf\xd4\x31\xef\x43\x01\x75\xd0\x8a\xc4\x0c\xb1\x46\x97\x6d"
      "\x65\xa7\x7d\x60\x5a\x93\x42\x84\x36\xf7\x08\x71\x84\x1c\x1a\x15\xac",
      89);
  *(uint64_t*)0x20000148 = 0x59;
  *(uint64_t*)0x20000150 = 0x200001c0;
  memcpy(
      (void*)0x200001c0,
      "\x86\xd1\xe2\xa4\x05\x09\x27\x47\xd9\x8d\xc6\x12\xb7\xdc\x98\x08\xe8\x65"
      "\x15\x34\x78\x3e\xee\xb6\x12\xef\x49\x54\x06\x2c\x13\xe7\x37\x2b\x40\xa5"
      "\x8a\x2a\x96\x94\x4d\xf0\x5a\x57\xfa\x15\x5f\x57\x3d\x28\x8d\x06\x8c\xad"
      "\xd1\x54\xa0\x54\x2d\xc1\x28\xa3\xa1\x26\x69\x34\x90\xb2\x92\x45\xc4\x2a"
      "\x4d\x01\x0b\xad\x4b\x56\x26\x9e\xac\x16\x03\x17\xd5\x42\xa4\xe0\xad\x44"
      "\xcb\x6d\xad\x94\x70\x2b\x6b\x72\xb2\xf5\x30\x7a\xbb\x4b\x05\x53\x57\x26"
      "\x1d\x15\x9e\xd9\x78\x7a\xe5\x15\x8c\xd9\x40\xd1\xdc\x5e\xb5\xe9\xe2\xdc"
      "\xf0\xde\xd4\xbe\xa0\xe3\x9d\x91\x23\x3d\x33\x1a\x63\xcb\xa4\x7d\x12\x08"
      "\x5f\xe8\x1d\x71\xb5\x8b\x90\x79\xc0\xba\x8a\xea\xc6\x3a\x60\x62\xde\xa1"
      "\x11\x1b\xd9\x6f\x5e\xba\x4c\xf0\x47",
      171);
  *(uint64_t*)0x20000158 = 0xab;
  *(uint64_t*)0x20000160 = 0;
  *(uint64_t*)0x20000168 = 0;
  syscall(SYS_writev, r[0], 0x20000140ul, 3ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}