From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F0A9F2E0418; Fri, 21 Nov 2025 03:11:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763694677; cv=none; b=LysMRnOtE0vLVDV+zdK4lMjuMUrBpO0OUtNmztijx9IjuH1j+JILeIxg0yBl4dWq0OlP1Ayf19Zd9jYaBQxqzgfwTWCaBaq0zGwyCGSAD+MoTiVmw0Yn7AWsSFbCbGRFq6B2OKy8lPNdUXqJAJTSf+K0VkEJjmutImp5j6dpOXY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763694677; c=relaxed/simple; bh=hBWs+LmYlwg3Gb/oFb9zczcItK7fGAYqQ9eFiNEU2KU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=SBHtlgA9cq9D1Iby/5nsF8NHapAw8iYBeqy6hM54yMsJC5zRzww45L1KEU2t/ClTT/OBdG5CDmLTrcHLMP0L9ZXUpGRRM7YrjodWro+oBBypF0K2iFZeO+K34qKCShdEiYqZWaEdHR2QYUknMRGVd9dXFNHtiBQJDNUMGfhaN3M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=dJnD1woi; arc=none smtp.client-ip=220.197.31.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="dJnD1woi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=Dv ciVAJoKYnPSiG4xmqUCXX+O3GTlVU/QdVFRdjYScI=; b=dJnD1woihhpxpEdJ2p Lk0UKtSObjoQyCJUkMnoOaVeXtJ1fKEIfKbBmuhfY7vKNXUw3lcl5peAKhXWm5dj 0SgMHDTkvqtYcJbQmxBYQ2mDpDWPteL20Q0LSWrNe+XXJdP0WOOmpk617Y57aeNI NnQqPWVCimROck8797cyRz3Gc= Received: from localhost.localdomain (unknown []) by gzsmtp4 (Coremail) with SMTP id PygvCgB3rcQz2B9pv2uDEg--.947S2; Fri, 21 Nov 2025 11:10:44 +0800 (CST) From: Gongwei Li <13875017792@163.com> To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com Cc: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, Gongwei Li Subject: [PATCH 1/1] Drivers: hv: use kmalloc_array() instead of kmalloc() Date: Fri, 21 Nov 2025 11:10:41 +0800 Message-Id: <20251121031041.56619-1-13875017792@163.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PygvCgB3rcQz2B9pv2uDEg--.947S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jr48ZF13tw4fArW8Gw43GFg_yoW3KFXEka y5ZrW7Gr1jywn0vwnxWFWrZF9Ikw48Wr4Ika4qqryfJ3srGa93XrW0vr98Zr17WFZ7CF9I ya1kCryayF18KjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUn9Z23UUUUU== X-CM-SenderInfo: rprtmlyvqrllizs6il2tof0z/1tbiXA0NumkfyffYFgACsi From: Gongwei Li Replace kmalloc() with kmalloc_array() to prevent potential overflow, as recommended in Documentation/process/deprecated.rst. Signed-off-by: Gongwei Li --- 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