[PATCH] vsprintf: Do not break early boot with probing addresses

Steven Rostedt rostedt at goodmis.org
Sat May 11 02:24:01 AEST 2019


On Fri, 10 May 2019 10:42:13 +0200
Petr Mladek <pmladek at suse.com> wrote:

>  static const char *check_pointer_msg(const void *ptr)
>  {
> -	char byte;
> -
>  	if (!ptr)
>  		return "(null)";
>  
> -	if (probe_kernel_address(ptr, byte))
> +	if ((unsigned long)ptr < PAGE_SIZE || IS_ERR_VALUE(ptr))
>  		return "(efault)";
>  


	< PAGE_SIZE ?

do you mean: < TASK_SIZE ?

-- Steve


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