// https://syzkaller.appspot.com/bug?id=bdf08cae172f0f4572f6559e7d64f13fbebb708a
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

static long syz_open_procfs(volatile long a0, volatile long a1)
{
  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == -1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  intptr_t res = 0;
  memcpy((void*)0x20000100, "syscall\000", 8);
  syz_open_procfs(0, 0x20000100);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_socket, 1ul, 3ul, 0);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x200002c0 = 0x14;
  res = syscall(__NR_getsockname, r[1], 0x20000100ul, 0x200002c0ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20000104;
  *(uint64_t*)0x20000080 = 0;
  *(uint32_t*)0x20000088 = 0;
  *(uint64_t*)0x20000090 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x200004c0;
  memcpy((void*)0x200004c0,
         "\x80\x00\x00\x00\x10\x00\xdb\xdf\x25\xf1\x1f\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x10",
         20);
  *(uint32_t*)0x200004d4 = r[2];
  memcpy((void*)0x200004d8,
         "\x00\x00\x00\x00\x00\x00\x00\x00\x58\x00\x12\x80\x0b\x00\x01\x00\x62"
         "\x61\x74\x61\x64\x76\x00\x00\x48\x00\x02\x80\x0d\x00\x01\x00\x42\x41"
         "\x54\x4d\x41\x4e\x5f\x49\x56\x00\x00\x00\x0c\x00\x01\x00\x42\x41\x54"
         "\x4d\x41\x4e\x5f\x56\x0d\x00\x01\x00\x42\x41\x54\x4d\x41\x4e\x5f\x49"
         "\x56\x00\x00\x00\x0c\x00\x01\x00\x42\x41\x54\x4d\x41\x4e\x5f\x56\x0c"
         "\x00\x01\x00\x42\x41\x54\x4d\x41\x4e\x5f\x56\x08\x00\x03\x00",
         100);
  *(uint32_t*)0x2000053c = r[2];
  *(uint64_t*)0x20000008 = 0x80;
  *(uint64_t*)0x20000098 = 1;
  *(uint64_t*)0x200000a0 = 0;
  *(uint64_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000b0 = 0x28044084;
  syscall(__NR_sendmsg, r[0], 0x20000080ul, 0x4040000ul);
  return 0;
}