linux-kernel - Re: [Lksctp-developers] [PATCH] Fix memory leak in discard case of sctp_sf_abort

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Message-ID: <47386DE6.4020207@hp.com>
Date:	Mon, 12 Nov 2007 10:14:46 -0500
From:	Vlad Yasevich <vladislav.yasevich@...com>
To:	Jesper Juhl <jesper.juhl@...il.com>
Cc:	lksctp developers <lksctp-developers@...ts.sourceforge.net>,
	netdev@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sridhar Samudrala <sri@...ibm.com>
Subject: Re: [Lksctp-developers] [PATCH] Fix memory leak in discard case of
 sctp_sf_abort_violation()

Jesper Juhl wrote:
> From: Jesper Juhl <jesper.juhl@...il.com>
> 
> In net/sctp/sm_statefuns.c::sctp_sf_abort_violation() we may leak 
> the storage allocated for 'abort' by returning from the function 
> without using or freeing it. This happens in case 
> "sctp_auth_recv_cid(SCTP_CID_ABORT, asoc)" is true and we jump to 
> the 'discard' label.
> Spotted by the Coverity checker.
> 
> The simple fix is to simply move the creation of the "abort chunk" 
> to after the possible jump to the 'discard' label. This way we don't   
> even have to allocate the memory at all in the problem case.
> 
> 
> Signed-off-by: Jesper Juhl <jesper.juhl@...il.com>

Thanks.  I've applied this to my tree.

-vlad
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