From: Julia Lawall <Julia.Lawall@inria.fr>
To: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: keescook@chromium.org, kernel-janitors@vger.kernel.org,
Haiyang Zhang <haiyangz@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-hyperv@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 22/26] net: mana: use array_size
Date: Fri, 23 Jun 2023 23:14:53 +0200 [thread overview]
Message-ID: <20230623211457.102544-23-Julia.Lawall@inria.fr> (raw)
In-Reply-To: <20230623211457.102544-1-Julia.Lawall@inria.fr>
Use array_size to protect against multiplication overflows.
The changes were done using the following Coccinelle semantic patch:
// <smpl>
@@
expression E1, E2;
constant C1, C2;
identifier alloc = {vmalloc,vzalloc};
@@
(
alloc(C1 * C2,...)
|
alloc(
- (E1) * (E2)
+ array_size(E1, E2)
,...)
)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
---
drivers/net/ethernet/microsoft/mana/hw_channel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index 9d1507eba5b9..e82c513760f9 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -627,7 +627,7 @@ static int mana_hwc_establish_channel(struct gdma_context *gc, u16 *q_depth,
if (WARN_ON(cq->id >= gc->max_num_cqs))
return -EPROTO;
- gc->cq_table = vzalloc(gc->max_num_cqs * sizeof(struct gdma_queue *));
+ gc->cq_table = vzalloc(array_size(gc->max_num_cqs, sizeof(struct gdma_queue *)));
if (!gc->cq_table)
return -ENOMEM;
next prev parent reply other threads:[~2023-06-23 21:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-23 21:14 [PATCH 00/26] use array_size Julia Lawall
2023-06-23 21:14 ` [PATCH 02/26] octeon_ep: " Julia Lawall
2023-06-24 15:46 ` Simon Horman
2023-06-24 22:28 ` Jakub Kicinski
2023-06-25 20:14 ` Christophe JAILLET
2023-06-25 20:25 ` Julia Lawall
2023-06-25 20:32 ` Christophe JAILLET
2023-06-25 20:57 ` Julia Lawall
2023-06-23 21:14 ` [PATCH 04/26] gve: " Julia Lawall
2023-06-24 15:47 ` Simon Horman
2023-06-23 21:14 ` [PATCH 09/26] pds_core: " Julia Lawall
2023-06-24 15:47 ` Simon Horman
2023-06-26 16:02 ` Shannon Nelson
2023-06-23 21:14 ` [PATCH 11/26] ionic: " Julia Lawall
2023-06-24 15:47 ` Simon Horman
2023-06-26 16:03 ` Shannon Nelson
2023-06-23 21:14 ` [PATCH 18/26] net: enetc: " Julia Lawall
2023-06-24 15:48 ` Simon Horman
2023-06-23 21:14 ` Julia Lawall [this message]
2023-06-24 15:48 ` [PATCH 22/26] net: mana: " Simon Horman
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