// https://syzkaller.appspot.com/bug?id=ce7f451c017537296074d9203baaec292b311365
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/types.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/endian.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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;
  res = syscall(SYS_socket, /*domain=*/2ul, /*type=*/1ul, /*proto=*/0x84);
  if (res != -1)
    r[0] = res;
  *(uint8_t*)0x200000c0 = 0x10;
  *(uint8_t*)0x200000c1 = 2;
  *(uint16_t*)0x200000c2 = htobe16(0x4e22);
  *(uint32_t*)0x200000c4 = htobe32(0);
  memset((void*)0x200000c8, 0, 8);
  syscall(SYS_bind, /*fd=*/r[0], /*addr=*/0x200000c0ul, /*addrlen=*/0x10ul);
  *(uint8_t*)0x20000000 = 0xd3;
  *(uint8_t*)0x20000001 = 2;
  *(uint16_t*)0x20000002 = htobe16(0x4e22);
  *(uint32_t*)0x20000004 = htobe32(0x7f000001);
  memset((void*)0x20000008, 0, 8);
  syscall(SYS_connect, /*fd=*/r[0], /*addr=*/0x20000000ul, /*addrlen=*/0x10ul);
  memcpy((void*)0x20000240,
         "\x90\xe1\x9c\x44\x75\x0a\x42\x13\xe1\x41\x51\xd8\xf5\xa5\x90\x0b\x84"
         "\x99\x38\x2d\xda\x61\xdf\xd3\x1d\xeb\x99\xdd\xdd\x7a\xab\x13\x71\xb4"
         "\x0d\xe4\xbb\xb8\x57\xec\xca\x09\x5a\x51\xdf\x88\xc7\xf9\x3a\x6d\x94"
         "\xf8\x53\x30\x72\x73\xb7\x74\x1f\x2e\xf0\x33\xd9\xde\xcd\xfa\xdd\x6c"
         "\x25\xc3\xe8\xb8\x0f\x23\xfc\x48\xea\x00\x0c\x27\xb6\x69\xb1\x37\xdb"
         "\x2b\xd6\xed\x95\xbb\xf1\x03\x05\x1e\x1e\xb8\x84\x4a\x5a\xc0\x7e\x22"
         "\xbe\xaf\x20\xf6\x2b\xd2\x42\x48\x76\x8e\x93\x2f\x5c\xd2\xd2",
         117);
  syscall(SYS_sendto, /*fd=*/r[0], /*buf=*/0x20000240ul, /*len=*/0xffc2ul,
          /*f=*/0ul, /*addr=*/0ul, /*addrlen=*/0ul);
  syscall(SYS_shutdown, /*fd=*/r[0], /*how=*/1ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x1012ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}