// https://syzkaller.appspot.com/bug?id=c2283e736a6077d20ce01c9cfcdc5e85473f5162
// 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  res = syscall(__NR_socket, 0xa, 1, 0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000200 = 1;
  syscall(__NR_setsockopt, r[0], 6, 0x13, 0x20000200, 4);
  *(uint16_t*)0x20000340 = 0xa;
  *(uint16_t*)0x20000342 = htobe16(0);
  *(uint32_t*)0x20000344 = htobe32(0);
  memcpy((void*)0x20000348,
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint32_t*)0x20000358 = 0;
  syscall(__NR_connect, r[0], 0x20000340, 0x1c);
  memcpy((void*)0x200000c0, "tls\000", 4);
  syscall(__NR_setsockopt, r[0], 6, 0x1f, 0x200000c0, 4);
  *(uint16_t*)0x20000100 = 0x303;
  *(uint16_t*)0x20000102 = 0x33;
  syscall(__NR_setsockopt, r[0], 0x11a, 1, 0x20000100, 0x28);
  *(uint64_t*)0x200005c0 = 0;
  *(uint32_t*)0x200005c8 = 0;
  *(uint64_t*)0x200005d0 = 0x20000580;
  *(uint64_t*)0x20000580 = 0x20000540;
  *(uint32_t*)0x20000540 = 0x1c;
  *(uint16_t*)0x20000544 = 0;
  *(uint16_t*)0x20000546 = 0;
  *(uint32_t*)0x20000548 = 0;
  *(uint32_t*)0x2000054c = 0;
  *(uint8_t*)0x20000550 = 1;
  *(uint8_t*)0x20000551 = 0;
  *(uint16_t*)0x20000552 = 0;
  *(uint32_t*)0x20000554 = 0;
  *(uint16_t*)0x20000558 = 0xf;
  *(uint16_t*)0x2000055a = 0;
  *(uint64_t*)0x20000588 = 0x1c;
  *(uint64_t*)0x200005d8 = 1;
  *(uint64_t*)0x200005e0 = 0;
  *(uint64_t*)0x200005e8 = 0;
  *(uint32_t*)0x200005f0 = 0;
  syscall(__NR_sendmsg, r[0], 0x200005c0, 0);
  memcpy((void*)0x20000080, "pagemap\000", 8);
  res = syz_open_procfs(0, 0x20000080);
  if (res != -1)
    r[1] = res;
  syscall(__NR_sendfile, r[0], r[1], 0, 0x10010);
  return 0;
}