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 X-Spam-Level: X-Spam-Status: No, score=-24.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2D290C43460 for ; Wed, 5 May 2021 17:16:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0280C613D8 for ; Wed, 5 May 2021 17:16:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238947AbhEERQk (ORCPT ); Wed, 5 May 2021 13:16:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:38464 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236882AbhEERDj (ORCPT ); Wed, 5 May 2021 13:03:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A0DD661403; Wed, 5 May 2021 16:41:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620232911; bh=pHtSuaRD9ECuqmij18bMGNVoZYyhXTDFP66B78+ACxY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ezOlnzw0ldE5GBcvKnPwcGllPHbPGxH/3oLz1v+53AljE3JGDuulTUrVvbQglSXr7 Yb2I+VjBlShi0moO0viOJvLFEKDlikThDHQCH42H7/hRKMNkTB+u0RYusptCBMYX70 18/uh7a6WTZ5nJC4TZHVwPpJM6ZCOrZV0FZL1O9VtlBmPZd2WesC1oukpKgBuRHBnh Kc2Z+OH+j5Fbkl/N4ddZoxdiBV1VDe/Nj7PT+tE74ftL4RjEhz/90ZZk5uPj4EQSdh BTmdyeHqoYx1xjiLDVapexibevZnrDqOpweQHHvc1qSsl23zr8u95fPLn32ldkT8DO K/45OySr5gLxg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Gustavo A. R. Silva" , kernel test robot , Kees Cook , Marcelo Ricardo Leitner , "David S . Miller" , Sasha Levin , linux-sctp@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 15/22] sctp: Fix out-of-bounds warning in sctp_process_asconf_param() Date: Wed, 5 May 2021 12:41:22 -0400 Message-Id: <20210505164129.3464277-15-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210505164129.3464277-1-sashal@kernel.org> References: <20210505164129.3464277-1-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: "Gustavo A. R. Silva" [ Upstream commit e5272ad4aab347dde5610c0aedb786219e3ff793 ] Fix the following out-of-bounds warning: net/sctp/sm_make_chunk.c:3150:4: warning: 'memcpy' offset [17, 28] from the object at 'addr' is out of the bounds of referenced subobject 'v4' with type 'struct sockaddr_in' at offset 0 [-Warray-bounds] This helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/109 Reported-by: kernel test robot Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/sctp/sm_make_chunk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index acb0c2631c79..0c5aff3bb539 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -3129,7 +3129,7 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc, * primary. */ if (af->is_any(&addr)) - memcpy(&addr.v4, sctp_source(asconf), sizeof(addr)); + memcpy(&addr, sctp_source(asconf), sizeof(addr)); peer = sctp_assoc_lookup_paddr(asoc, &addr); if (!peer) -- 2.30.2