Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: segfault when indirectly expanding negative numbers Date: Wed, 12 Aug 2015 16:24:58 -0400 Lines: 13 Approved: bug-bash@gnu.org Message-ID: References: Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1439411108 22426 208.118.235.17 (12 Aug 2015 20:25:08 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: isabella parakiss , bug-bash Envelope-to: bug-bash@gnu.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.0.1 In-Reply-To: X-Junkmail-Status: score=10/50, host=mpv5.cwru.edu X-Junkmail-Whitelist: YES (by domain whitelist at mpv2.tis.cwru.edu) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 129.22.105.37 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:11334 On 8/12/15 3:52 PM, isabella parakiss wrote: > Bash segfaults when trying to do this: x=-3; echo ${!x} > Here's the backtrace from gdb: https://gist.github.com/306f16a358527b267a1e > It looks like the problem is the savestring macro when ind is negative. Thanks for the report. This will be fixed in the next version of bash. Chet -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/