From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#56553: 29.0.50; ASAN error with fringe bitmaps on NS Date: Thu, 14 Jul 2022 16:56:12 +0300 Message-ID: <83cze7u7b7.fsf@gnu.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9393"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 56553@debbugs.gnu.org To: Gerd =?UTF-8?Q?M=C3=B6llmann?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Jul 14 15:57:29 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oBzLK-0002GT-UL for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 Jul 2022 15:57:27 +0200 Original-Received: from localhost ([::1]:55148 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oBzLJ-0004M5-Pk for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 Jul 2022 09:57:25 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53972) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBzKw-0004Jp-A0 for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2022 09:57:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:40746) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oBzKw-0005nh-0S for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2022 09:57:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oBzKv-0002fe-ON for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2022 09:57:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 14 Jul 2022 13:57:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 56553 X-GNU-PR-Package: emacs Original-Received: via spool by 56553-submit@debbugs.gnu.org id=B56553.165780699010226 (code B ref 56553); Thu, 14 Jul 2022 13:57:01 +0000 Original-Received: (at 56553) by debbugs.gnu.org; 14 Jul 2022 13:56:30 +0000 Original-Received: from localhost ([127.0.0.1]:38505 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oBzKQ-0002ep-3C for submit@debbugs.gnu.org; Thu, 14 Jul 2022 09:56:30 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40874) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oBzKN-0002ej-7M for 56553@debbugs.gnu.org; Thu, 14 Jul 2022 09:56:29 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44012) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBzKH-0005ZZ-VY; Thu, 14 Jul 2022 09:56:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=vg1ZTfKiw9cZWsMj+6jTRJF7uGV66IQsT2zOwyB92F4=; b=V9jTXEhA7cTOXMw2flO4 qxSUJm7Cozd4YrbDWyYu3x1LEeemAaU7XQ/wJvj9ueeAimSiU7IUMQwtkDQFr63xl5wW5BoyFCs1i UiiLdSXxzY667m0noFIRLnpGk3BAHJ+Ator8L1w1I68Cov2AwOPgdCSnvGauAPo0ax1X58y/53iah TV0PJSWPZYi71hMSZ1aS2fglPy2CB9Ec3yR8PJpZDHR1EHtlW9ymPyWhEWwWFBacw9RGam9e2UrjS q2KH0f4u4fpA+1KAG75hgXzHGyik5oyBiI3zD3ZLh5br/yKDA/2aMCcBK7euabRhpkKDONzVoHMRg oRaXg1+mRCQXxg==; Original-Received: from [87.69.77.57] (port=3350 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBzKE-0003xl-5V; Thu, 14 Jul 2022 09:56:21 -0400 In-Reply-To: (message from Gerd =?UTF-8?Q?M=C3=B6llmann?= on Thu, 14 Jul 2022 15:03:36 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:236993 Archived-At: > From: Gerd Möllmann > Date: Thu, 14 Jul 2022 15:03:36 +0200 > > This is a Spacemacs profile, with a lot of fringe bitmaps. The error > happens right after hitting 'q' on the startup screen, when the first > fringe bitmap is displayed. > > thread #1: tid = 0x3d47c, 0x0000000103dc4870 libclang_rt.asan_osx_dynamic.dylib`__asan::AsanDie(), queue = 'com.apple.main-thread', stop reason = Heap buffer overflow > > { > "access_size": 2, > "access_type": 0, > "address": 4402845816, > "description": "heap-buffer-overflow", > "instrumentation_class": "AddressSanitizer", > "pc": 4313240244, > "stop_type": "fatal_error" > } > > frame #5: 0x000000010116d2b4 emacs`ns_define_fringe_bitmap(which=27, bits=0x00000001066e1860, h=12, w=16) at nsterm.m:2906:20 > 2903 /* XBM rows are always round numbers of bytes, with any unused > 2904 bits ignored. */ > 2905 int byte = y * (w/8 + (w%8 ? 1 : 0)) + x/8; > -> 2906 bool bit = bits[byte] & (0x80 >> x%8); > 2907 if (bit) > 2908 [p appendBezierPathWithRect:NSMakeRect (x, y, 1, 1)]; > 2909 } > (lldb) p byte > (int) $22 = 12 > > frame #6: 0x0000000101079128 emacs`init_fringe_bitmap(which=27, fb=0x00000001066e1850, once_p=0) at fringe.c:1520:2 > 1517 destroy_fringe_bitmap (which); > 1518 > 1519 if (rif && rif->define_fringe_bitmap) > -> 1520 rif->define_fringe_bitmap (which, fb->bits, fb->height, fb->width); > 1521 > 1522 fringe_bitmaps[which] = fb; > 1523 if (which >= max_used_fringe_bitmap) > (lldb) p *fb > (fringe_bitmap) $21 = { > bits = 0x00000001066e1860 > height = 12 > width = 16 > period = 0 > align = 0 > dynamic = true > } I don't understand this. What is the dimension of the bits[] array? It is supposed to be 12 * 2, so how come the index 12 causes access violation? Who is the caller of init_fringe_bitmap in this case?