From: Wei Liu <wei.liu@kernel.org>
To: Gongwei Li <13875017792@163.com>
Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
decui@microsoft.com, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, Gongwei Li <ligongwei@kylinos.cn>
Subject: Re: [PATCH 1/1] Drivers: hv: use kmalloc_array() instead of kmalloc()
Date: Fri, 28 Nov 2025 07:15:24 +0000 [thread overview]
Message-ID: <20251128071524.GA69390@liuwe-devbox-debian-v2.local> (raw)
In-Reply-To: <20251121031041.56619-1-13875017792@163.com>
On Fri, Nov 21, 2025 at 11:10:41AM +0800, Gongwei Li wrote:
> From: Gongwei Li <ligongwei@kylinos.cn>
>
> Replace kmalloc() with kmalloc_array() to prevent potential
> overflow, as recommended in Documentation/process/deprecated.rst.
>
> Signed-off-by: Gongwei Li <ligongwei@kylinos.cn>
Applied to hyperv-next. Thanks.
> ---
> drivers/hv/hv_util.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
> index 36ee89c0358b..7e9c8e169c66 100644
> --- a/drivers/hv/hv_util.c
> +++ b/drivers/hv/hv_util.c
> @@ -586,7 +586,7 @@ static int util_probe(struct hv_device *dev,
> (struct hv_util_service *)dev_id->driver_data;
> int ret;
>
> - srv->recv_buffer = kmalloc(HV_HYP_PAGE_SIZE * 4, GFP_KERNEL);
> + srv->recv_buffer = kmalloc_array(4, HV_HYP_PAGE_SIZE, GFP_KERNEL);
> if (!srv->recv_buffer)
> return -ENOMEM;
> srv->channel = dev->channel;
> --
> 2.25.1
>
prev parent reply other threads:[~2025-11-28 7:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 3:10 [PATCH 1/1] Drivers: hv: use kmalloc_array() instead of kmalloc() Gongwei Li
2025-11-28 7:15 ` Wei Liu [this message]
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