Re: [PATCH] [SECURITY, 2.4] Avoid 'names_cache' memory leak with CONFIG_AUDITSYSCALL

From: Horms
Date: Fri Oct 28 2005 - 23:01:27 EST


On Fri, Oct 28, 2005 at 12:00:46PM +0200, Arjan van de Ven wrote:
> On Fri, 2005-10-28 at 18:27 +0900, Horms wrote:
> > This is CAN-2005-3181, and a backport of
> > 829841146878e082613a49581ae252c071057c23 from Linus's 2.6 tree to 2.4.
> >
> > Original Description and Sign-Off:
> >
> > Avoid 'names_cache' memory leak with CONFIG_AUDITSYSCALL
> >
> > The nameidata "last.name" is always allocated with "__getname()", and
> > should always be free'd with "__putname()".
> >
> > Using "putname()" without the underscores will leak memory, because the
> > allocation will have been hidden from the AUDITSYSCALL code.
>
> > My sign off, indicating I think it applies to 2.4:
>
>
> since there is no such thing as CONFIG_AUDITSYSCALL in any 2.4 kernel, I
> really think this is entirely NOT relevant to 2.4.....

Thanks, I withdraw the patch.

--
Horms
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