netdev - Re: [PATCH net] gve: Fix the queue page list allocated pages count

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Message-Id: <20191126.155329.693030888355093971.davem@davemloft.net>
Date:   Tue, 26 Nov 2019 15:53:29 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     jeroendb@...gle.com
Cc:     netdev@...r.kernel.org, csully@...gle.com
Subject: Re: [PATCH net] gve: Fix the queue page list allocated pages count

From: Jeroen de Borst <jeroendb@...gle.com>
Date: Tue, 26 Nov 2019 15:36:19 -0800

> In gve_alloc_queue_page_list(), when a page allocation fails,
> qpl->num_entries will be wrong.  In this case priv->num_registered_pages
> can underflow in gve_free_queue_page_list(), causing subsequent calls
> to gve_alloc_queue_page_list() to fail.
> 
> Fixes: f5cedc84a30d ("gve: Add transmit and receive support")
> Signed-off-by: Jeroen de Borst <jeroendb@...gle.com>
> Reviewed-by: Catherine Sullivan <csully@...gle.com>

Applied and queued up for -stable.