syzkaller-repros/linux/a743c25030c86d41c8b2cf6a0651603155c48245.c

// WARNING in __alloc_pages_nodemask
// https://syzkaller.appspot.com/bug?id=a743c25030c86d41c8b2cf6a0651603155c48245
// status:open
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  memcpy((void*)0x200002c0, "/dev/vga_arbiter", 17);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x200002c0, 2, 0);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_fcntl, r[0], 0, r[0]);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000000 = 0xf;
  *(uint8_t*)0x20000004 = 0x1f;
  *(uint16_t*)0x20000005 = 0x40;
  *(uint64_t*)0x20000007 = 0;
  syscall(__NR_write, r[1], 0x20000000, 0xfffffefa);
  return 0;
}