From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Mark H Weaver Newsgroups: gmane.lisp.guile.bugs Subject: bug#15100: Division by zero in bytevector->uint-list Date: Fri, 16 Aug 2013 23:19:15 -0400 Message-ID: <87pptdgg24.fsf@tines.lan> References: <87li438bev.fsf@industria.weinholt.se> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1376709622 31569 80.91.229.3 (17 Aug 2013 03:20:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 17 Aug 2013 03:20:22 +0000 (UTC) Cc: 15100-done@debbugs.gnu.org To: =?UTF-8?Q?G=C3=B6ran?= Weinholt Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Sat Aug 17 05:20:23 2013 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VAX3u-0008LO-GI for guile-bugs@m.gmane.org; Sat, 17 Aug 2013 05:20:22 +0200 Original-Received: from localhost ([::1]:34262 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAX3t-000671-Q2 for guile-bugs@m.gmane.org; Fri, 16 Aug 2013 23:20:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58984) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAX3l-000652-Qb for bug-guile@gnu.org; Fri, 16 Aug 2013 23:20:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VAX3f-000833-GP for bug-guile@gnu.org; Fri, 16 Aug 2013 23:20:13 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:41397) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAX3f-00082w-DZ for bug-guile@gnu.org; Fri, 16 Aug 2013 23:20:07 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VAX3d-0008JG-ND for bug-guile@gnu.org; Fri, 16 Aug 2013 23:20:06 -0400 Resent-From: Mark H Weaver Original-Sender: "Debbugs-submit" Resent-To: bug-guile@gnu.org Resent-Date: Sat, 17 Aug 2013 03:20:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 15100 X-GNU-PR-Package: guile X-GNU-PR-Keywords: Mail-Followup-To: 15100@debbugs.gnu.org, mhw@netris.org, goran@weinholt.se Original-Received: via spool by 15100-done@debbugs.gnu.org id=D15100.137670958031891 (code D ref 15100); Sat, 17 Aug 2013 03:20:03 +0000 Original-Received: (at 15100-done) by debbugs.gnu.org; 17 Aug 2013 03:19:40 +0000 Original-Received: from localhost ([127.0.0.1]:35711 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VAX3D-0008IJ-Um for submit@debbugs.gnu.org; Fri, 16 Aug 2013 23:19:40 -0400 Original-Received: from world.peace.net ([96.39.62.75]:60011 ident=hope5) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VAX3A-0008I5-0P for 15100-done@debbugs.gnu.org; Fri, 16 Aug 2013 23:19:36 -0400 Original-Received: from 209-6-91-212.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com ([209.6.91.212] helo=tines.lan) by world.peace.net with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1VAX32-0000zO-5x; Fri, 16 Aug 2013 23:19:28 -0400 In-Reply-To: <87li438bev.fsf@industria.weinholt.se> ("=?UTF-8?Q?G=C3=B6ran?= Weinholt"'s message of "Thu, 15 Aug 2013 13:02:16 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.bugs:7254 Archived-At: G=C3=B6ran Weinholt writes: > the bytevector->uint-list procedure from (rnrs) can crash Guile through > a division by zero: > > scheme@(guile-user)> (import (rnrs)) > scheme@(guile-user)> (bytevector->uint-list #vu8(0) 'x 0) > Floating point exception > > The same happens with bytevector->sint-list. Fixed in 088cfb7d761b01a2620d78f10e8dbcaa07485a32. > These procedures also do not check that the length of the bytevector > is divisible by the size. I don't think we can fix this in stable-2.0, because some existing code might depend on our current permissive behavior. However, I fixed it on the master branch in c099201da1de71652b9791fb0a3a863b6d3c355d. Thanks! Mark