Re: Validating Pointers

From: Alan Cox (
Date: Thu Jul 26 2001 - 10:52:48 EST

> Is there a general (correct) kernel subroutine to validate a pointer
> received in a routine as input from the outside world? Is access_ok() a
> good one to use?

access_ok may do minimal checks, or no checking at all. The only point at
which you can validate a user point is when you use copy*user and
get/put_user to access the data.
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This archive was generated by hypermail 2b29 : Tue Jul 31 2001 - 21:00:27 EST