// https://syzkaller.appspot.com/bug?id=3449a4131e624cbe4848d012f650667a2175e2d6
// 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;
  for (iter = 0;; 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 < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_socket
#define SYS_socket 394
#endif
#ifndef SYS_writev
#define SYS_writev 121
#endif

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(SYS_socket, 0x22ul, 3ul, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000000 = 0;
  *(uint64_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x200000c0;
  memcpy((void*)0x200000c0,
         "\x4c\xbd\x24\x07\x03\x05\x7b\x42\x53\x29\xa9\x27\x3a\x8b\x83\x08\x19"
         "\x13\x2c\xfd\x9d\x6c\xd0\x80\x15\x67\x46\x06\xf8\x60\x78\xba\x02\x63"
         "\x57\xc5\xef\x27\x74\x49\x3c\x07\x5d\x6e\xe4\xe8\xe6\x58\x80\x4d\xcc"
         "\x12\x56\xf6\x86\x31\x6a\x2e\x9c\xb9\xb5\x86\x26\xa0\xb4\x25\x33\xbd"
         "\x77\x63\x64\xf9\xc4\xad\x97\xe4\xc1\x8f\x0b\x65\x72\x2c\xc7\x4c\xbd"
         "\x13\xd2\x61\x19\xfd\x1f\x2e\xfc\xec\x45\xc5\xcf\xec\x7e\xad\x2a\x94"
         "\x89\xdd\x0b\xe5\x03\x60\x97\x7d\x99\xe0\x67\xcf\xdd\x7f\x8e\xde\x14"
         "\xeb\xd6\xce\x79\x28\x48\x46\x4e\x1e\x9c\x69\xe1\x22\xa0\x79\x53\xc3"
         "\x1b\x3d\xea\x75\xe7\x8d\x75\xf1\xa8\xf5\xdb\x1c\x33\xde\x44\xaa\xc5"
         "\x2f\xe5\x4d\xe6\x68\x63\x2f\xab\xbe\x5b\xd4\x8e\x8c\x92\x1f\xdf\x09"
         "\x5a\x73\x7e\xea\xf0\x1e\xe8\x02\x5c",
         179);
  *(uint64_t*)0x20000018 = 0xb3;
  *(uint64_t*)0x20000020 = 0x20000180;
  memcpy((void*)0x20000180,
         "\xdf\xa6\x17\xe9\x7f\x3e\x33\x11\x15\x03\x58\x9c\x1c\x8b\xd1\xb1\x3e"
         "\x77\xbb\x95\xe4\x53\xf1\x50\x64\x6a\x1f\x4c\x17\x9d\x4f\x51\x42\xc9"
         "\xa8\x14\xb1\x71\x6a\x4b\x03\x33\x27\x84\xc6\x20\x0b\xde\x0b\x9f\xc9"
         "\x96\x7c\x56\x86\x44\x61\x11\x94\x26\x14\x79\x98\xd6\xc5\x7a\x46\x80"
         "\x39\x36\x19\x16\xfc\xe3\xd6\x6b\xd4\x71\x76\x36\x62\xea\xb7\xf8\x38"
         "\x3b\x21\x72\xab\xc5\xb5\x1b\x10\x60\x2c\x46\x65\xcd\x20\xc5\xfd\xa7"
         "\x0d\xc7\x4c\xc0\x9c\x09\x45\xd4\xff\xbe\x2e\xc2\x2d\x9c\x05\x52\xbc"
         "\x02\x72\x1a\x5e\x15\xed\x06\xc1\x95\x72\xc8\xff\xd3\x1f\x00\x35\x31"
         "\x0d\x84\x91\x3c\x42\xa6\xfc\x8f\x48\xef\x53\x4a\xe5\xeb\x95\x39\x7e"
         "\x55\x42\xdb\x36\xcf\x0f\xe3\x82\xab\x64\x07",
         164);
  *(uint64_t*)0x20000028 = 0xa4;
  syscall(SYS_writev, r[0], 0x20000000ul, 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;
}