From patchwork Thu Nov 25 13:59:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Martin_Li=C5=A1ka?= X-Patchwork-Id: 48135 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id E60BA3858004 for ; Thu, 25 Nov 2021 14:00:50 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by sourceware.org (Postfix) with ESMTPS id C75B23858424 for ; Thu, 25 Nov 2021 13:59:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org C75B23858424 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.cz Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id B3B5C21B36; Thu, 25 Nov 2021 13:59:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1637848780; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=qOISgLxaaE+Yz7+U7whCFlcs+JUGw21kqnOtbt1MmwU=; b=gkKyn+rs9ojA8C8vHTvOXgewvrPnKHW9IWBV7QHDLOpC7LxwELhlrRWradzJech+0sa0Kl RWGalU2F+1ep+XD8zpv2V1QFOo7+cn3xXRAUQ5uQR3FjNFyoL8tY2O1I9h7fTbX7XOCphQ MzWI7o4Vba6s2pd+SE6no+8JfyIJH1M= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1637848780; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=qOISgLxaaE+Yz7+U7whCFlcs+JUGw21kqnOtbt1MmwU=; b=JvefEvIrqMohgAJRe7n1ALXI8ymiHLaJRsGBgz2Kjknn0OiAuILbN1XXW8vIQIJYBXxOmg On3OEk4P5qCMa0Dg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id A0D0C13B70; Thu, 25 Nov 2021 13:59:40 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id PPsQJsyWn2HxfAAAMHmgww (envelope-from ); Thu, 25 Nov 2021 13:59:40 +0000 Message-ID: Date: Thu, 25 Nov 2021 14:59:40 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.2 From: =?utf-8?q?Martin_Li=C5=A1ka?= Subject: [PATCH] d: fix ASAN in option processing To: gcc-patches@gcc.gnu.org Content-Language: en-US X-Spam-Status: No, score=-11.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, SPF_HELO_NONE, SPF_PASS, TXREP, WEIRD_PORT autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" Fixes: ==129444==ERROR: AddressSanitizer: global-buffer-overflow on address 0x00000666ca5c at pc 0x000000ef094b bp 0x7fffffff8180 sp 0x7fffffff8178 READ of size 4 at 0x00000666ca5c thread T0 #0 0xef094a in parse_optimize_options ../../gcc/d/d-attribs.cc:855 #1 0xef0d36 in d_handle_optimize_attribute ../../gcc/d/d-attribs.cc:916 #2 0xef107e in d_handle_optimize_attribute ../../gcc/d/d-attribs.cc:887 #3 0xff85b1 in decl_attributes(tree_node**, tree_node*, int, tree_node*) ../../gcc/attribs.c:829 #4 0xef2a91 in apply_user_attributes(Dsymbol*, tree_node*) ../../gcc/d/d-attribs.cc:427 #5 0xf7b7f3 in get_symbol_decl(Declaration*) ../../gcc/d/decl.cc:1346 #6 0xf87bc7 in get_symbol_decl(Declaration*) ../../gcc/d/decl.cc:967 #7 0xf87bc7 in DeclVisitor::visit(FuncDeclaration*) ../../gcc/d/decl.cc:808 #8 0xf83db5 in DeclVisitor::build_dsymbol(Dsymbol*) ../../gcc/d/decl.cc:146 for the following test-case: gcc/testsuite/gdc.dg/attr_optimize1.d. Ready for master? Thanks, Martin gcc/d/ChangeLog: * d-attribs.cc (parse_optimize_options): Check index before accessing cl_options. --- gcc/d/d-attribs.cc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/gcc/d/d-attribs.cc b/gcc/d/d-attribs.cc index d81b7d122f7..1ec800526f7 100644 --- a/gcc/d/d-attribs.cc +++ b/gcc/d/d-attribs.cc @@ -852,7 +852,9 @@ parse_optimize_options (tree args) unsigned j = 1; for (unsigned i = 1; i < decoded_options_count; ++i) { - if (! (cl_options[decoded_options[i].opt_index].flags & CL_OPTIMIZATION)) + unsigned opt_index = decoded_options[i].opt_index; + if (opt_index >= cl_options_count + && ! (cl_options[opt_index].flags & CL_OPTIMIZATION)) { ret = false; warning (OPT_Wattributes,