linux-kernel - Re: [PATCH v2] rds: avoid potential stack overflow

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Message-ID: <20150311215038.GA13663@oracle.com>
Date:	Wed, 11 Mar 2015 17:50:38 -0400
From:	Sowmini Varadhan <sowmini.varadhan@...cle.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	netdev@...r.kernel.org, roland@...estorage.com,
	rds-devel@....oracle.com, linux-kernel@...r.kernel.org,
	chien.yen@...cle.com, linux-arm-kernel@...ts.infradead.org,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH v2] rds: avoid potential stack overflow

On (03/11/15 22:46), Arnd Bergmann wrote:
> 
> The rds_iw_update_cm_id function stores a large 'struct rds_sock' object
> on the stack in order to pass a pair of addresses. This happens to just
> fit withint the 1024 byte stack size warning limit on x86, but just
> exceed that limit on ARM, which gives us this warning:
  :
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Sowmini Varadhan <sowmini.varadhan@...cle.com>

--Sowmini
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