// https://syzkaller.appspot.com/bug?id=bda19bf6b14e7fddccf28ac6f0205c7df6d8c32e
// 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 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[6] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0x0};

void execute_one(void)
{
  intptr_t res = 0;
  syscall(SYS_socket, /*domain=*/2ul, /*type=*/0ul, /*proto=*/0x84);
  res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  syscall(SYS_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=*/0x31,
          /*optval=*/0ul, /*optlen=*/0x1010ul);
  syscall(SYS_sendto, /*fd=*/r[0], /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[1] = res;
  *(uint8_t*)0x20000180 = 0x1c;
  *(uint8_t*)0x20000181 = 0x1c;
  *(uint16_t*)0x20000182 = htobe16(0x4e23 + procid * 4);
  *(uint32_t*)0x20000184 = 0;
  *(uint64_t*)0x20000188 = htobe64(0);
  *(uint64_t*)0x20000190 = htobe64(1);
  *(uint32_t*)0x20000198 = 0;
  syscall(SYS_connect, /*fd=*/r[1], /*addr=*/0x20000180ul, /*addrlen=*/0x1cul);
  syscall(SYS_sendto, /*fd=*/r[1], /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  res = syscall(SYS_fcntl, /*fd=*/-1, /*cmd=*/0x11ul, /*arg=*/-1);
  if (res != -1)
    r[2] = res;
  syscall(SYS_getsockopt, /*fd=*/r[2], /*level=*/0x84, /*opt=*/7, /*val=*/0ul,
          /*len=*/0ul);
  *(uint8_t*)0x200000c0 = 0x10;
  *(uint8_t*)0x200000c1 = 2;
  *(uint16_t*)0x200000c2 = htobe16(0x4e23 + procid * 4);
  *(uint32_t*)0x200000c4 = htobe32(0xe0000001);
  memset((void*)0x200000c8, 0, 8);
  syscall(SYS_connect, /*fd=*/-1, /*addr=*/0x200000c0ul, /*addrlen=*/0x10ul);
  syscall(SYS_socketpair, /*domain=*/0x17ul, /*type=*/2ul, /*proto=*/5,
          /*fds=*/0ul);
  syscall(SYS_socketpair, /*domain=*/0x17ul, /*type=*/2ul, /*proto=*/5,
          /*fds=*/0ul);
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/0x84, /*opt=*/0x900, /*val=*/0ul,
          /*len=*/0ul);
  res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[3] = res;
  syscall(SYS_sendto, /*fd=*/r[3], /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  *(uint32_t*)0x200000c0 = 0;
  res = syscall(SYS_accept, /*fd=*/-1, /*peer=*/0ul, /*peerlen=*/0x200000c0ul);
  if (res != -1)
    r[4] = res;
  syscall(SYS_sendto, /*fd=*/r[4], /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/6, /*optname=*/0x2000,
          /*optval=*/0ul, /*optlen=*/0ul);
  *(uint32_t*)0x200003c0 = 3;
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/6, /*optname=*/0x22,
          /*optval=*/0x200003c0ul, /*optlen=*/4ul);
  syscall(SYS_shutdown, /*fd=*/-1, /*how=*/1ul);
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/6, /*optname=*/0x2000,
          /*optval=*/0ul, /*optlen=*/0ul);
  *(uint64_t*)0x20000080 = 0x200006c0;
  *(uint64_t*)0x20000088 = 0x100000;
  syscall(SYS_pwritev, /*fd=*/-1, /*vec=*/0x20000080ul, /*vlen=*/1ul,
          /*off=*/0ul);
  syscall(SYS_open, /*file=*/0ul, /*flags=*/0x40000400000002c2ul,
          /*mode=*/0x9eul);
  res = syscall(SYS_fork);
  {
    int i;
    for (i = 0; i < 32; i++) {
      syscall(SYS_fork);
    }
  }
  if (res != -1)
    r[5] = res;
  syscall(SYS_procctl, /*idtype=*/2ul, /*id=*/r[5], /*cmd=*/0xeul,
          /*data=*/0ul);
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = -1;
  *(uint32_t*)0x2000000c = 0;
  *(uint16_t*)0x20000010 = 0x6a;
  *(uint16_t*)0x20000012 = 0x584;
  *(uint32_t*)0x20000014 = 0;
  *(uint64_t*)0x20000018 = 0x80000000;
  *(uint32_t*)0x20000020 = 0x6e;
  *(uint64_t*)0x20000028 = 0x4f;
  *(uint64_t*)0x20000030 = 9;
  *(uint64_t*)0x20000038 = 0x2033;
  *(uint32_t*)0x20000040 = 0;
  *(uint32_t*)0x20000044 = r[5];
  *(uint16_t*)0x20000048 = 0x24b;
  *(uint16_t*)0x2000004a = 0;
  *(uint64_t*)0x20000050 = 0;
  *(uint64_t*)0x20000058 = 0;
  syscall(SYS_shmctl, /*shmid=*/0, /*cmd=*/1ul, /*buf=*/0x20000000ul);
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/0x84, /*opt=*/0x32, /*val=*/0ul,
          /*len=*/0ul);
  memcpy((void*)0x20000100,
         "rack\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000",
         32);
  *(uint32_t*)0x20000120 = 0;
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/6, /*optname=*/0x2000,
          /*optval=*/0x20000100ul, /*optlen=*/0x24ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x1012ul, /*fd=*/-1, /*offset=*/0ul);
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}