// https://syzkaller.appspot.com/bug?id=ea851fc4688cbac29a567cb49a4fd24d9afff426
// 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_pwritev
#define SYS_pwritev 290
#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*)0x20000040, "./file0\000", 8);
  syscall(SYS_compat_50_mknod, 0x20000040ul, 0x2000ul, 0xf000);
  memcpy((void*)0x200001c0, "./file0\000", 8);
  res = syscall(SYS_open, 0x200001c0ul, 0x70eul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000140 = 0;
  *(uint64_t*)0x20000148 = 0;
  *(uint64_t*)0x20000150 = 0;
  *(uint64_t*)0x20000158 = 0;
  *(uint64_t*)0x20000160 = 0x20000340;
  memcpy((void*)0x20000340,
         "\xcb\xfa\x31\xf8\xf7\x8e\xd7\x5c\x15\x00\x22\x77\x55\xb6\x8a\x0a\x66"
         "\x32\x3a\x1c\x66\x30\x93\x8b\x2f\xdf\x8d\x81\xfe\x70\x2f\xdd\xe5\xec"
         "\x81\xd0\x9d\x1b\x23\x88\xb1\x53\x15\x6b\xb7\xf1\x3d\x3a\xdf\xdd\xb0"
         "\x3b\xff\x84\x81\x4e\x93\xe0\x74\xe3\x94\xab\x31\xb7\x04\x96\x8e\x21"
         "\xcd\x60\x6b\x86\x8e\x80\xde\x83\x70\x71\x5e\xc5\xc3\x4f\xa3\xa2\x4a"
         "\x6e\x22\x8b\x0f\xb5\xc1\xf8\xd8\x4d\xf6\xae\x16\x16\x38\x88\x33\x56"
         "\x07\x64\xcd\x7a\xe1\x1e\x42\x8a\x3e\x41\xe8\x2e\x13\x76\xe2\x8e\x60"
         "\x0b\xad\x30\x58\xce\xbe\xb4\xce\x85\x07\xa0\xca\xcb\xe5\xe6\x08\x83"
         "\x36\x47\xd0\x16\xd6\xf1\xac\x6a\xd1\x3a\x9f\x02\x5a\x51\xc6\x27\x4e"
         "\x30\x38\x35\x55\x7a\xd7\xbe\x14\x07\x9c\xc1\x91",
         165);
  *(uint64_t*)0x20000168 = 0xa5;
  syscall(SYS_pwritev, r[0], 0x20000140ul, 3ul, -1ul);
}
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;
}