From patchwork Tue Mar 7 16:57:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 660010 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 2B013C678D4 for ; Tue, 7 Mar 2023 17:47:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231997AbjCGRrN (ORCPT ); Tue, 7 Mar 2023 12:47:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232007AbjCGRqx (ORCPT ); Tue, 7 Mar 2023 12:46:53 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76B69A6BF0; Tue, 7 Mar 2023 09:41:47 -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 7DA09B8184E; Tue, 7 Mar 2023 17:41:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CBFC0C433D2; Tue, 7 Mar 2023 17:41:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678210904; bh=J3f4qv5kjF2i82DUy43TciALYCtsEwkz6/MXBKiSoLc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UHU22/X41ET5yuAZMpjrefT414SQ4aT0E/9beAXEs8ZaFTI1PZTqk2MXD5BEcdCML BKeEPMZXsM/2qwYQK6TIqaKpzANWeayRU9rcVyHtTRGoIQjNRVjzrTffEJbVQ+haA7 egxjg26jXEo5YikZm8GPQAIsqsH0L+yxQb20bxZg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nathan Chancellor , Weili Qian , Zhou Wang , Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org, Kees Cook , Sasha Levin Subject: [PATCH 6.2 0660/1001] crypto: hisilicon: Wipe entire pool on error Date: Tue, 7 Mar 2023 17:57:12 +0100 Message-Id: <20230307170050.239540731@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307170022.094103862@linuxfoundation.org> References: <20230307170022.094103862@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Kees Cook [ Upstream commit aa85923a954e7704bc9d3847dabeb8540aa98d13 ] To work around a Clang __builtin_object_size bug that shows up under CONFIG_FORTIFY_SOURCE and UBSAN_BOUNDS, move the per-loop-iteration mem_block wipe into a single wipe of the entire pool structure after the loop. Reported-by: Nathan Chancellor Link: https://github.com/ClangBuiltLinux/linux/issues/1780 Cc: Weili Qian Cc: Zhou Wang Cc: Herbert Xu Cc: "David S. Miller" Cc: linux-crypto@vger.kernel.org Signed-off-by: Kees Cook Tested-by: Nathan Chancellor # build Link: https://lore.kernel.org/r/20230106041945.never.831-kees@kernel.org Signed-off-by: Sasha Levin --- drivers/crypto/hisilicon/sgl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c index 2b6f2281cfd6c..0974b00414050 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -124,9 +124,8 @@ struct hisi_acc_sgl_pool *hisi_acc_create_sgl_pool(struct device *dev, for (j = 0; j < i; j++) { dma_free_coherent(dev, block_size, block[j].sgl, block[j].sgl_dma); - memset(block + j, 0, sizeof(*block)); } - kfree(pool); + kfree_sensitive(pool); return ERR_PTR(-ENOMEM); } EXPORT_SYMBOL_GPL(hisi_acc_create_sgl_pool);