netdev - Re: [PATCH] RDS: Heap OOB write in rds_message_alloc

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Message-Id: <20180103.112446.584944271934501141.davem@davemloft.net>
Date:   Wed, 03 Jan 2018 11:24:46 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     simo.ghannam@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH] RDS: Heap OOB write in rds_message_alloc_sgs()

From: simo.ghannam@...il.com
Date: Tue,  2 Jan 2018 19:44:34 +0000

> From: Mohamed Ghannam <simo.ghannam@...il.com>
> 
> When args->nr_local is 0, nr_pages gets also 0 due some size
> calculation via rds_rm_size(), which is later used to allocate
> pages for DMA, this bug produces a heap Out-Of-Bound write access
> to a specific memory region.
> 
> Signed-off-by: Mohamed Ghannam <simo.ghannam@...il.com>

Applied and queued up for -stable, thanks.