netdev - [net-next v2 03/12] i40e: Prevent overflow due to kzalloc

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Date:	Thu,  6 Mar 2014 18:59:15 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Akeem G Abodunrin <akeem.g.abodunrin@...el.com>,
	netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com,
	Catherine Sullivan <catherine.sullivan@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next v2 03/12] i40e: Prevent overflow due to kzalloc

From: Akeem G Abodunrin <akeem.g.abodunrin@...el.com>

To prevent the possibility of overflow due multiplication of number and size
use kcalloc instead of kzalloc.

Change-ID: Ibe4d81ed7d9738d3bbe66ee4844ff9be817e8080
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@...el.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@...el.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 189e250..42cc6ba 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -858,7 +858,7 @@ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
 		}
 	}
 	/* allocate memory */
-	vfs = kzalloc(num_alloc_vfs * sizeof(struct i40e_vf), GFP_KERNEL);
+	vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
 	if (!vfs) {
 		ret = -ENOMEM;
 		goto err_alloc;
-- 
1.8.3.1

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