// 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>

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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, 0x0};

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, 0x803ul, 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 = 0x20000580;
  *(uint32_t*)0x20000580 = 0x74;
  *(uint16_t*)0x20000584 = 0x10;
  *(uint16_t*)0x20000586 = 0x401;
  *(uint32_t*)0x20000588 = 0x70bd25;
  *(uint32_t*)0x2000058c = 0x25dfdbfd;
  *(uint8_t*)0x20000590 = 0;
  *(uint8_t*)0x20000591 = 0;
  *(uint16_t*)0x20000592 = 0;
  *(uint32_t*)0x20000594 = r[2];
  *(uint32_t*)0x20000598 = 0;
  *(uint32_t*)0x2000059c = 0;
  *(uint16_t*)0x200005a0 = 0x4c;
  STORE_BY_BITMASK(uint16_t, , 0x200005a2, 0x12, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200005a3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200005a3, 1, 7, 1);
  *(uint16_t*)0x200005a4 = 0xb;
  *(uint16_t*)0x200005a6 = 1;
  memcpy((void*)0x200005a8, "batadv\000", 7);
  *(uint16_t*)0x200005b0 = 0x3c;
  STORE_BY_BITMASK(uint16_t, , 0x200005b2, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200005b3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200005b3, 1, 7, 1);
  *(uint16_t*)0x200005b4 = 0xc;
  *(uint16_t*)0x200005b6 = 1;
  memcpy((void*)0x200005b8, "BATMAN_V", 8);
  *(uint16_t*)0x200005c0 = 0xd;
  *(uint16_t*)0x200005c2 = 1;
  memcpy((void*)0x200005c4, "BATMAN_IV", 9);
  *(uint16_t*)0x200005d0 = 0xd;
  *(uint16_t*)0x200005d2 = 1;
  memcpy((void*)0x200005d4, "BATMAN_IV", 9);
  *(uint16_t*)0x200005e0 = 0xc;
  *(uint16_t*)0x200005e2 = 1;
  memcpy((void*)0x200005e4, "BATMAN_V", 8);
  *(uint16_t*)0x200005ec = 8;
  *(uint16_t*)0x200005ee = 3;
  *(uint32_t*)0x200005f0 = r[2];
  *(uint64_t*)0x20000008 = 0x74;
  *(uint64_t*)0x20000098 = 1;
  *(uint64_t*)0x200000a0 = 0;
  *(uint64_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000b0 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000080ul, 0x20040000ul);
  return 0;
}