linux-kernel - RE: [Intel-wired-lan] [PATCH] e100: Add a check after pci_pool

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Message-ID: <309B89C4C689E141A5FF6A0C5FB2118B81AE873D@ORSMSX101.amr.corp.intel.com>
Date:	Tue, 18 Aug 2015 02:54:28 +0000
From:	"Brown, Aaron F" <aaron.f.brown@...el.com>
To:	Jia-Ju Bai <baijiaju1990@....com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH] e100: Add a check after
 pci_pool_create	to avoid null pointer dereference

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...ts.osuosl.org] On
> Behalf Of Jia-Ju Bai
> Sent: Sunday, August 02, 2015 7:17 PM
> To: Kirsher, Jeffrey T; Brandeburg, Jesse
> Cc: netdev@...r.kernel.org; Jia-Ju Bai; intel-wired-lan@...ts.osuosl.org;
> linux-kernel@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH] e100: Add a check after pci_pool_create
> to avoid null pointer dereference
> 
> The driver lacks the check of nic->cbs_pool after pci_pool_create
> in e100_probe. When this function is failed, a null pointer dereference
> occurs when pci_pool_alloc uses nic->cbs_pool in e100_alloc_cbs.
> This patch adds a check and related error handling code to fix it.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@....com>
> ---
>  drivers/net/ethernet/intel/e100.c |    7 +++++++
>  1 file changed, 7 insertions(+)

Tested-by: Aaron Brown <aaron.f.brown@...el.com>
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