From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 092BEC4332F for ; Sat, 24 Dec 2022 01:34:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236612AbiLXBeJ (ORCPT ); Fri, 23 Dec 2022 20:34:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236492AbiLXBdV (ORCPT ); Fri, 23 Dec 2022 20:33:21 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76B3A36C4B; Fri, 23 Dec 2022 17:31:16 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C976BB8213E; Sat, 24 Dec 2022 01:31:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9EE96C433D2; Sat, 24 Dec 2022 01:31:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671845473; bh=o3h8QFf1heCMKB4WGULMIN1ny+WcA+y3nrdHIvaaL8Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qPulpUxOQaJyZd1F5vi8imFbZ0kpOgWUpLz8lW4XKIsDCnPav9rCqfYjGX9Wa5fJo iQ2BLWGIwwBp8aD6zC5uKT8Wtgt/I23zO9EyNDml7OWrnU/DwD+9zJVCJmt0gGizC+ ST2TwHhJluhOd7xla3wbuHEIwcyaPs4QIhkkcpx+7roHHD2DD22xYDB+XU2hwQb9DM 7iqLT8paS+VA4UR9W7/9CViOJksXF8wo46Ob+bD1Cn1lRC/f76ZFC+RPR6kSqUXbN1 OSjev2mQydcmCE9G6XThsNcMVwlwmWVOoyQpE8vJ2rW/C3wvdhCAjehiKoaHZiNnN0 SnD2Q6c1UyiQg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: farah kassabri , Oded Gabbay , Sasha Levin , gregkh@linuxfoundation.org, osharabi@habana.ai, ynudelman@habana.ai, ttayar@habana.ai, dhirschfeld@habana.ai Subject: [PATCH AUTOSEL 6.0 10/18] habanalabs: zero ts registration buff when allocated Date: Fri, 23 Dec 2022 20:30:26 -0500 Message-Id: <20221224013034.392810-10-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221224013034.392810-1-sashal@kernel.org> References: <20221224013034.392810-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: farah kassabri [ Upstream commit 679e968908a4997d02c2a7df294e97b066f9149f ] To avoid memory corruption in kernel memory while using timestamp registration nodes, zero the kernel buff memory when its allocated. Signed-off-by: farah kassabri Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin --- drivers/misc/habanalabs/common/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 61bc1bfe984a..751f8c751b72 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -2097,7 +2097,7 @@ static int hl_ts_alloc_buf(struct hl_mmap_mem_buf *buf, gfp_t gfp, void *args) /* Allocate the internal kernel buffer */ size = num_elements * sizeof(struct hl_user_pending_interrupt); - p = vmalloc(size); + p = vzalloc(size); if (!p) goto free_user_buff; -- 2.35.1