// https://syzkaller.appspot.com/bug?id=a9156610601a302c9344b35cfb7ddbe6510a629a
// 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[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  intptr_t res = 0;
  memcpy((void*)0x20000140, "pagemap\000", 8);
  res = -1;
  res = syz_open_procfs(/*pid=*/0, /*file=*/0x20000140);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000d40 = 0x60;
  *(uint64_t*)0x20000d48 = 1;
  *(uint64_t*)0x20000d50 = 0x20000000;
  *(uint64_t*)0x20000d58 = 0x20001000;
  *(uint64_t*)0x20000d60 = 0;
  *(uint64_t*)0x20000d68 = 0;
  *(uint64_t*)0x20000d70 = 0;
  *(uint64_t*)0x20000d78 = 0;
  *(uint64_t*)0x20000d80 = 0;
  *(uint64_t*)0x20000d88 = 0;
  *(uint64_t*)0x20000d90 = 0;
  *(uint64_t*)0x20000d98 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0606610, /*arg=*/0x20000d40ul);
  *(uint64_t*)0x20000d40 = 0x60;
  *(uint64_t*)0x20000d48 = 1;
  *(uint64_t*)0x20000d50 = 0x20000000;
  *(uint64_t*)0x20000d58 = 0x20001000;
  *(uint64_t*)0x20000d60 = 0;
  *(uint64_t*)0x20000d68 = 0;
  *(uint64_t*)0x20000d70 = 0;
  *(uint64_t*)0x20000d78 = 0;
  *(uint64_t*)0x20000d80 = 0;
  *(uint64_t*)0x20000d88 = 0;
  *(uint64_t*)0x20000d90 = 0;
  *(uint64_t*)0x20000d98 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc0606610, /*arg=*/0x20000d40ul);
  return 0;
}