Path: csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: process substitution fd lifetime race condition Date: Mon, 20 Apr 2020 17:49:41 -0400 Organization: ITS, Case Western Reserve University Lines: 23 Approved: bug-bash@gnu.org Message-ID: References: <20200420051508.GA2359844@zx2c4.com> <7496b183-2db3-6c03-6074-928adcd08f45@case.edu> 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 1587419392 18044 209.51.188.17 (20 Apr 2020 21:49:52 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu, bug-bash@gnu.org To: "Jason A. 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envelope-from=chet.ramey@case.edu; helo=mpv4-2015.case.edu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/20 15:50:25 X-ACL-Warn: Detected OS = Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.195 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <20200420051508.GA2359844@zx2c4.com> <7496b183-2db3-6c03-6074-928adcd08f45@case.edu> Xref: csiph.com gnu.bash.bug:16204 On 4/20/20 5:01 PM, Jason A. Donenfeld wrote: > On 4/20/20, Chet Ramey wrote: >> On 4/20/20 1:15 AM, Jason A. Donenfeld wrote: >>> Hi, >>> >>> I've uncovered a very unusual race condition when using process >>> substitution and developed as minimal a reproducer as I could create: >> >> What version of bash are you using? >> > > 5.0.016 See if the patch in this message helps things. I'm skeptical, but give it a try. https://lists.gnu.org/archive/html/bug-bash/2020-04/msg00018.html -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/