// 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>

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;
    }
  }
}

#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

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000080, "./file0\000", 8);
  syscall(SYS_compat_50_mknod, 0x20000080ul, 0x2000ul, 0x400);
  memcpy((void*)0x20000040, "./file0\000", 8);
  res = syscall(SYS_open, 0x20000040ul, 2ul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000000 = 0x200000c0;
  memcpy((void*)0x200000c0,
         "\x11\x77\xa6\x80\x2b\x77\x70\x41\xf0\x45\x95\x58\x0a\x93\xc8\x7c\x08"
         "\x90\x3e\xee\x25\x99\x4b\x59\xee\xa0\x13\xfa\xd4\x09\xf1\xd9\xc6\x9f"
         "\x6c\x28\xcd\x6c\x4f\xdd\x09\xbc\x18\xa2\xbe\xb3\x2b\x7c\x77\x34\x8f"
         "\x73\x75\x02\xfc\xfe\xd5\x8c\xcc\xc3\x5a\x0f\x22\x99\xe8\xed\x60\x6b"
         "\xfa\xfc\x5e\xb1\x2a\x21\x17\x2b\xee\x35\xcd\xcc\x97\x89\xbd\xd2\x1d"
         "\xf4\xc0\x06\x25\xd0\x89\x28\xe3\xa4\xf5\xcc\xdd\x49\x38\x63\xd6\xff"
         "\xac\x18\x0b\xba\x63\x93\x8c\xc9\x39\x60\x9f\xbc\xd0\x76\x06\xcf\xe0"
         "\x95\x6c\x05\xce\xb0\xe3\x67\x7b\xcc\x39\x9f\xa3\x8b\xc2\x67\x12\x00"
         "\xdb\x57\xaa\xf2\x7e\x17\xc8\x98\x85\x6f\xa8\xef\x5b\x12\xcf\x73\xfc"
         "\xfd\x04\x24\x7a\x47\xe6\x69\x9b\xa7\x86\x97\x8d\x6a\xe7\x0a\xba\xed"
         "\xa9\x15\x7e\x13\x2d\x76\x0f\x96\x44\xaa\x17\xc1\x57\xa3\x8c\xc9\x38"
         "\x3f\xb7\x93\xff\x9d\x66\xb9\x6e\xc4\x7b\x6f\xd7\xea\xb7\xe9\xfb\xc0"
         "\x75\xb3\xf1\x31\x3b\xc9\xb5\xe6\x4c\x16\x13\x88\xd6\x97\xa6\x66",
         220);
  *(uint64_t*)0x20000008 = 0xdc;
  *(uint64_t*)0x20000010 = 0x200001c0;
  memcpy(
      (void*)0x200001c0,
      "\x91\xed\xa3\x25\xf1\xfc\x7e\xc0\xd8\x81\x2e\x5e\x03\xab\x51\x9f\xc6\x7d"
      "\xec\x91\x7b\xb5\x7a\xfc\xf5\x95\x29\xc2\x7e\x3b\x79\x4b\x5c\xb1\x5f\x70"
      "\x39\x98\xbf\x17\xae\x72\xc6\x34\xc8\x1b\x7a\x51\x27\xdb\xcb\x6a\x2e\xff"
      "\xe1\xde\x9b\xd4\xad\x07\x98\xd0\xf8\x5d\x62\x8d\xb1\x77\x5c\xea\x7e\x2d"
      "\xca\x5f\xcb\x25\xd7\x86\xcb\xff\x92\x4e\xba\x6d\x1e\xa2\xb1\xbe\xfe\x77"
      "\x59\x0b\xe4\x93\x45\x82\x53\x41\x4a\x6e\x39\xa1\x72\x83\x53\xaa\x39\xff"
      "\xa1\x50\xdb\x40\xd3\x3a\x8b\x6e\xef\x75\x8f\xd1\xe3\x46\x9c\x54\x57\x55"
      "\x5a\xae\xc9\x52\x9a\x8d\x1f\x72\xbc\xbc\xb2\xd6\x16\x0d\xf3\xda\xde\x1d"
      "\x3f\xa9\x78\xa7\x09\xf1\x22\x37\x04\x19\x38\x24\x7d\x64\x41\x88\x5e\xe5"
      "\x90\x58\xcd\x14\xab\xa3\x87\x88\x17\x5b\x6d\x2b\x7a\xe6\x57\xfd\x2c\x6a"
      "\xa2\x32\x3d\x41\xdc\xcb\xc1\x50\x1d\x60\x93\xc0\x71\xad\x3a\xc2\xf6\x32"
      "\x02\xf6\xf4\xba\xee\x24\xd2\xcb\x9a\x53\x16\x9d",
      210);
  *(uint64_t*)0x20000018 = 0xd2;
  syscall(SYS_pwritev, r[0], 0x20000000ul, 2ul, 0x1000009b76ul);
}
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;
}