linux-kernel - [PATCH 1/1] Drivers: hv: use kmalloc

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Message-Id: <20251121031041.56619-1-13875017792@163.com>
Date: Fri, 21 Nov 2025 11:10:41 +0800
From: Gongwei Li <13875017792@....com>
To: kys@...rosoft.com,
	haiyangz@...rosoft.com,
	wei.liu@...nel.org,
	decui@...rosoft.com
Cc: linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Gongwei Li <ligongwei@...inos.cn>
Subject: [PATCH 1/1] Drivers: hv: use kmalloc_array() instead of kmalloc()

From: Gongwei Li <ligongwei@...inos.cn>

Replace kmalloc() with kmalloc_array() to prevent potential
overflow, as recommended in Documentation/process/deprecated.rst.

Signed-off-by: Gongwei Li <ligongwei@...inos.cn>
---
 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