From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gerd =?UTF-8?Q?M=C3=B6llmann?= Newsgroups: gmane.emacs.bugs Subject: bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal Date: Thu, 06 Oct 2022 07:20:02 +0200 Message-ID: References: <83edvnv965.fsf@gnu.org> <83pmf6u76i.fsf@gnu.org> <83mtaau43p.fsf@gnu.org> <83ilkytyif.fsf@gnu.org> <87y1tuv851.fsf@yahoo.com> <87lepuv5l8.fsf@yahoo.com> <87czb6v3l2.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28285"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (darwin) Cc: Eli Zaretskii , 58042@debbugs.gnu.org, Alan Third To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Oct 06 07:21:12 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 1ogJJo-0007DD-4T for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 06 Oct 2022 07:21:12 +0200 Original-Received: from localhost ([::1]:33952 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ogJJm-0001yp-UZ for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 06 Oct 2022 01:21:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33208) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ogJJe-0001yV-IL for bug-gnu-emacs@gnu.org; Thu, 06 Oct 2022 01:21:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:59467) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ogJJe-0002qT-9k for bug-gnu-emacs@gnu.org; Thu, 06 Oct 2022 01:21:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ogJJe-0001Ym-3F for bug-gnu-emacs@gnu.org; Thu, 06 Oct 2022 01:21:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 06 Oct 2022 05:21:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 58042 X-GNU-PR-Package: emacs Original-Received: via spool by 58042-submit@debbugs.gnu.org id=B58042.16650336135882 (code B ref 58042); Thu, 06 Oct 2022 05:21:02 +0000 Original-Received: (at 58042) by debbugs.gnu.org; 6 Oct 2022 05:20:13 +0000 Original-Received: from localhost ([127.0.0.1]:58541 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ogJIr-0001Wo-0E for submit@debbugs.gnu.org; Thu, 06 Oct 2022 01:20:13 -0400 Original-Received: from mail-ej1-f46.google.com ([209.85.218.46]:36859) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ogJIn-0001WY-Vt for 58042@debbugs.gnu.org; Thu, 06 Oct 2022 01:20:11 -0400 Original-Received: by mail-ej1-f46.google.com with SMTP id 13so2095532ejn.3 for <58042@debbugs.gnu.org>; Wed, 05 Oct 2022 22:20:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date; bh=c2OOALpOZ7yvtfJb/QbiDW7LcAbHMmNg5GVuGe40ocY=; b=DptBXF3bpU6txY723OF9MFra2uYTwj7tWH5qZY8myfs0SfYmCfZVhTz5o48q80JOMf ztuNdq8/F+2lEum98Ysm31HtdmActzL5giFVLchIOEU1bPXX2n1jHbVoUbxBHyGf+QIz fW6g08N4J8o07rdZ0K4+LH6UnTv/NS1auzlG3JnWlmjxTYUJ5jcFYvfRJg6xVsiA6sOC 4hFqK9Pv6tET6wpi3itCzht+VFf+w7UEfarUpuD8kPHusBP9NLH8pQ1E39hTbCkz4atX pGgEvQqzVZ0mgQbn4iYWSy8tFywm+Y89GwnMWuObd60jN0/iebd3d5Z73PvNV1QyaOCt IWRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:cc:to:from:x-gm-message-state:from :to:cc:subject:date; bh=c2OOALpOZ7yvtfJb/QbiDW7LcAbHMmNg5GVuGe40ocY=; b=L/H4o/l3mqM0fedA3FoAL5ktw40ygINCpfsy/DpwpGGXZDhykIgNwQjVx9eL2+EMZu i+HImu5xoz68nxiX9nizcjawYIp/uynTcRj1GWm+r5BeMzbiZ2Bk0XxakA/OzeqfVj0C 1tdJkGLz81O28G74vNkyyk3xbKB5lBwPsXWpNDy3szDSidvMas8uaORNZ2Gs9Byz/C2N 917cWHGsNbFRkFL84Z6cZdQ9KWre+bQKtrxzBiMxXh8scbTADW5c+Hjgnao6TiZNzBkR gvQBLNw1e2OtivJ+/xKZXJNIfzIPoTzqwYl2eqYODgxJInE9ptRgKF0tZRl375i4EQtN sRPA== X-Gm-Message-State: ACrzQf3VTGUMWZgLPFLhBj2M8GjExRy60huirBa4E/MKIBovIHo/Uwbi lrtQutUCO5BI3JODcTq2uIY= X-Google-Smtp-Source: AMsMyM6K+jXKTgAo4umsMbKLM3BAxSErqRCRCZ9NKbgpXPybM4lQblaZTBkB4f3q1Tt9ilhhkK7Pog== X-Received: by 2002:a17:907:168f:b0:788:c642:1624 with SMTP id hc15-20020a170907168f00b00788c6421624mr2553156ejc.79.1665033604069; Wed, 05 Oct 2022 22:20:04 -0700 (PDT) Original-Received: from Mini.fritz.box (pd9e36a85.dip0.t-ipconnect.de. [217.227.106.133]) by smtp.gmail.com with ESMTPSA id g2-20020a17090604c200b0073d7bef38e3sm9596702eja.45.2022.10.05.22.20.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Oct 2022 22:20:03 -0700 (PDT) In-Reply-To: <87czb6v3l2.fsf@yahoo.com> (Po Lu's message of "Wed, 05 Oct 2022 20:48:25 +0800") 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:244590 Archived-At: Po Lu writes: > Gerd M=C3=B6llmann writes: > >> I don't get an abort, but the ASAN error again > > Interesting. > >> =3D=3D67682=3D=3DERROR: AddressSanitizer: heap-use-after-free on address= 0x000107130d00 at pc 0x0001002a481c bp 0x00016fdcc3c0 sp 0x00016fdcc3b8 >> READ of size 8 at 0x000107130d00 thread T0 >> #0 0x1002a4818 in PSEUDOVECTORP lisp.h:1110 >> #1 0x1002a4888 in SYMBOL_WITH_POS_P lisp.h:1122 >> #2 0x10025a338 in EQ lisp.h:1342 >> #3 0x100280eb0 in run_window_change_functions window.c:3964 >> #4 0x1000f18c4 in redisplay_internal xdisp.c:16600 >> #5 0x100107bf8 in redisplay xdisp.c:16111 >> #6 0x10089364c in -[EmacsView layoutSublayersOfLayer:] nsterm.m:8661 >> #7 0x1900a9624 in CA::Layer::layout_if_needed(CA::Transaction*)+0x22= 4 (QuartzCore:arm64e+0x20624) >> #8 0x1901f661c in CA::Context::commit_transaction(CA::Transaction*, >> double, double*)+0x1c0 (QuartzCore:arm6 >> >> frame #8: 0x0000000100280eb4 emacs`run_window_change_functions at window= .c:3964:7 >> 3961 (de-)selected as its frame's or the globally selected >> 3962 window. */ >> 3963 if (((frame_selected_change >> -> 3964 && (EQ (window, old_selected_window) >> 3965 || EQ (window, selected_window))) >> 3966 || (frame_selected_window_change >> 3967 && (EQ (window, FRAME_OLD_SELECTED_WINDOW (f)) >> >> (lldb) p window >> (Lisp_Object) $18 =3D 0x00000001071c2935 (struct window *) $23 =3D 0x000= 00001071c2930 >> (lldb) p old_selected_window >> (Lisp_Object) $24 =3D 0x0000000107130d05 (struct Lisp_Vector *) $28 =3D = 0x0000000107130d00 >> >> old_selected_window looks strange. It's a global that is not >> staticpro'd > > Isn't old_selected_window supposed to be kept in sync with > FRAME_OLD_SELECTED_WINDOW in old_selected_frame, with the latter being > removed once it is deleted? > > Would someone who knows the window code well please take a look at this? I've submitted bug#58327 for this problem, so that it won't be forgotten. (I'm sure I will forget it at some point, because I have added the staticpro in my local branch.)