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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id m4-20020a633f04000000b005b2d044af30si150421pga.480.2023.11.02.12.25.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Nov 2023 12:25:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=PISWMasE; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id F25048072A24; Thu, 2 Nov 2023 12:25:14 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232778AbjKBTZA (ORCPT + 99 others); Thu, 2 Nov 2023 15:25:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229452AbjKBTY7 (ORCPT ); Thu, 2 Nov 2023 15:24:59 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C9B6188 for ; Thu, 2 Nov 2023 12:24:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698953056; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=p5/AYOFpMtipyX3yVNE3RQ2sBJUpaSLLWRc4pCufaM4=; b=PISWMasEA+/cGOyaiqmN54OtG0KDP5HxLmcr3QdWeEckS0gUKM6bu/fTslszFg9TNgklmV 3FNjoWAMGh5RI/SRDpZKuvCAAlNxHcuOETmMHpVGE2D/GQ1GLBkEEDK6sIUXcLAqkHfYvO MWnwQE8/k82Z2OpTuQiuR96pKDTgw1A= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-90-mKhNalJfNKCnAuaNQZnUsw-1; Thu, 02 Nov 2023 15:24:14 -0400 X-MC-Unique: mKhNalJfNKCnAuaNQZnUsw-1 Received: by mail-wm1-f71.google.com with SMTP id 5b1f17b1804b1-4083a0fb583so1480405e9.1 for ; Thu, 02 Nov 2023 12:24:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698953053; x=1699557853; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=p5/AYOFpMtipyX3yVNE3RQ2sBJUpaSLLWRc4pCufaM4=; b=regKi6MBnI+24VjVhOlgulMyIvpbQgmi0eVjne3CH2Nz2+OUQ99DA8n5BdtkbPSvlA 5s+r+w87Y9m+hI1yJEbDpUQPVXifjLOjM6I7pC2khoAqPi9TjpM3jpAvDiBM0surOyHQ DQJZVPQSRuh2qCKcpjQCwbU3FY7Me+rHy9/65hcao52mbFMrMXR7r4kf9U44EgTJ360G kZwf4ZTtmwUcucY0Fs74tSfi7ul8bXkPHtft88SE7A1FTh1eA6nXBD3OV7eNgc8NG8MQ AXzQVVbecx5eVeDDYZgvZuaHCN0/UuvnkOLf/yuvcTZ0F2n7hu5pkWynGeC4ISX44BV2 2PFw== X-Gm-Message-State: AOJu0Ywsou+0RQ4Y0djsAi+C/0nNCPfV1JkORU+7ZwcgtaXkJvw7jeKy Tv5VShyfFiAsUPAu3j3aly2RCywlpD5RWpQAm/YSnn0iwc2RBWBTvz9/xomxrSiYWw43mflWKza KP/r8Z7IxrDadzxG5N6jtyz6f X-Received: by 2002:a05:600c:350c:b0:405:39bb:38a8 with SMTP id h12-20020a05600c350c00b0040539bb38a8mr15776530wmq.2.1698953053683; Thu, 02 Nov 2023 12:24:13 -0700 (PDT) X-Received: by 2002:a05:600c:350c:b0:405:39bb:38a8 with SMTP id h12-20020a05600c350c00b0040539bb38a8mr15776516wmq.2.1698953053326; Thu, 02 Nov 2023 12:24:13 -0700 (PDT) Received: from pstanner-thinkpadt14sgen1.remote.csb ([2001:9e8:32c5:d600:227b:d2ff:fe26:2a7a]) by smtp.gmail.com with ESMTPSA id gw21-20020a05600c851500b004064741f855sm66371wmb.47.2023.11.02.12.24.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Nov 2023 12:24:12 -0700 (PDT) From: Philipp Stanner To: Florian Tobias Schandinat , Helge Deller Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Philipp Stanner , Dave Airlie Subject: [PATCH] drivers/video/fbdev: use new array-copying-wrapper Date: Thu, 2 Nov 2023 20:24:03 +0100 Message-ID: <20231102192402.53721-2-pstanner@redhat.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.3 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Thu, 02 Nov 2023 12:25:15 -0700 (PDT) viafbdev.c utilizes memdup_user() to copy an array from userspace. There is a new wrapper, specifically designed for copying arrays. Use this one instead. Suggested-by: Dave Airlie Signed-off-by: Philipp Stanner --- drivers/video/fbdev/via/viafbdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/via/viafbdev.c b/drivers/video/fbdev/via/viafbdev.c index 58868f8880d6..a52b1ba43a48 100644 --- a/drivers/video/fbdev/via/viafbdev.c +++ b/drivers/video/fbdev/via/viafbdev.c @@ -574,7 +574,7 @@ static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg) break; case VIAFB_SET_GAMMA_LUT: - viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32)); + viafb_gamma_table = memdup_array_user(argp, 256, sizeof(u32)); if (IS_ERR(viafb_gamma_table)) return PTR_ERR(viafb_gamma_table); viafb_set_gamma_table(viafb_bpp, viafb_gamma_table); -- 2.41.0