linux-kernel - Re: [PATCH] fix sys_prctl() returned uninitialized value

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Message-Id: <20080521221536.204da871.akpm@linux-foundation.org>
Date:	Wed, 21 May 2008 22:15:36 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Andrew G. Morgan" <morgan@...nel.org>
Cc:	Shi Weihua <shiwh@...fujitsu.com>,
	"Serge E. Hallyn" <serue@...ibm.com>,
	linux-security-module@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, jmorris@...ei.org,
	ltp-list@...ts.sourceforge.net
Subject: Re: [PATCH] fix sys_prctl() returned uninitialized value

On Wed, 21 May 2008 22:01:17 -0700 "Andrew G. Morgan" <morgan@...nel.org> wrote:

> this is the default expected by the subsequent switch ().
> 

oh gawd.

> 
> diff --git a/kernel/sys.c b/kernel/sys.c
> index 895d2d4..cb25a64 100644
> --- a/kernel/sys.c
> +++ b/kernel/sys.c
> @@ -1657,6 +1657,8 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
>  	if (security_task_prctl(option, arg2, arg3, arg4, arg5, &error))
>  		return error;

All along I was believing that it was _this_ return which was causing
the problem.

> +	error = 0;
> +
>  	switch (option) {
>  		case PR_SET_PDEATHSIG:
>  			if (!valid_signal(arg2)) {

But now I see it.


This was a hard way to write a changelog.
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