linux-kernel - Re: [PATCH 1/1] cred: fix memory leak

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Message-ID: <4B44C8F4.7030900@gmail.com>
Date:	Wed, 06 Jan 2010 18:31:32 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	"Serge E. Hallyn" <serue@...ibm.com>
CC:	Jiri Slaby <jslaby@...e.cz>, jmorris@...ei.org,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>
Subject: Re: [PATCH 1/1] cred: fix memory leak

On 01/06/2010 06:25 PM, Serge E. Hallyn wrote:
> Quoting Jiri Slaby (jslaby@...e.cz):
>> Stanse found a memory leak in prepare_exec_creds. tgcred is not
>> freed/assigned on all paths. Fix that.
>>
>> I.e. unifdef tgcred and add kfree(tgcred); as it is initialized to
>> NULL already.
> 
> Does this compile with CONFIG_KEYS=n, , though? 

Yes and I guess it's due to no dereference of the pointer.

> Should this patch add one?

Hmm, I don't think so. The patch is ugly in the light of not having the
struct defined. I should come up with something where the CONFIG_KEYS is
left there.

thanks,
-- 
js
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