[RFC][PATCH] Inherit loginuid from parent

[Serge Hallyn]

Yes, that has to have been a typo...  The patch certainly looks correct.
(will test later today)

thanks,
-serge

On Thu, 2005-01-06 at 13:27 -0500, Stephen Smalley wrote:
> Hi,
> 
> I might be mis-reading the code, but it appears that the current
> audit_alloc() code is not preserving the loginuid of the parent process
> for the child process upon a fork or clone.  Instead, it is checking to
> see if the just-created child has an existing audit context and if so,
> copies the loginuid from it, which seems nonsensical, especially as it
> does nothing to free any existing audit context if one exists already. 
> Does this patch look correct?  In this context, tsk == the child, and
> current == the parent.  The child has not yet started execution at this
> point; it is still being setup by the fork/clone code. 
> 
> --- linux-2.6.10/kernel/auditsc.c.orig	2005-01-06 13:11:51.000000000 -0500
> +++ linux-2.6.10/kernel/auditsc.c	2005-01-06 13:14:28.000000000 -0500
> @@ -549,8 +549,8 @@ int audit_alloc(struct task_struct *tsk)
>  
>  				/* Preserve login uid */
>  	context->loginuid = -1;
> -	if (tsk->audit_context)
> -		context->loginuid = tsk->audit_context->loginuid;
> +	if (current->audit_context)
> +		context->loginuid = current->audit_context->loginuid;
>  
>  	tsk->audit_context  = context;
>  	set_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
> 
-- 
Serge Hallyn <serue at us.ibm.com>