From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id 2648C1F62E for ; Tue, 15 Jan 2019 15:34:45 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 2FB4C121CC7; Wed, 16 Jan 2019 00:34:42 +0900 (JST) Received: from o1678916x28.outbound-mail.sendgrid.net (o1678916x28.outbound-mail.sendgrid.net [167.89.16.28]) by neon.ruby-lang.org (Postfix) with ESMTPS id 9197812139B for ; Wed, 16 Jan 2019 00:34:39 +0900 (JST) Received: by filter0145p3mdw1.sendgrid.net with SMTP id filter0145p3mdw1-14668-5C3DFD8B-3F 2019-01-15 15:34:35.888498308 +0000 UTC m=+48688.294884995 Received: from herokuapp.com (ec2-54-92-132-214.compute-1.amazonaws.com [54.92.132.214]) by ismtpd0039p1iad1.sendgrid.net (SG) with ESMTP id BZJjjQrAQX-BW0HIRkjY1w for ; Tue, 15 Jan 2019 15:34:35.820 +0000 (UTC) Date: Tue, 15 Jan 2019 15:34:37 +0000 (UTC) From: fg@flashgordon.ru To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 66558 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 15536 X-Redmine-Issue-Author: decuplet X-Redmine-Sender: decuplet X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS6yflE18qjx0FRI492yg4SBV7Eev4aA2AnTxF Oygq3v2FKJfOyghZNDSOSjhTEUprRwrbJfSrbi6dgT19cLVqHXIZSh5oqQVHzAp3gW17zCkpf/kz48 ET/rmKDptKJt0VcFaWlGiUnaEdt5zuIFVsqz1/LEz0UmkSA+8CjZXAYztw== X-ML-Name: ruby-core X-Mail-Count: 91107 Subject: [ruby-core:91107] [Ruby trunk Bug#15536] Crash on merging specific hashes using keyword splat X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #15536 has been updated by decuplet (Nikita Shilnikov). That was fast, thank you. ---------------------------------------- Bug #15536: Crash on merging specific hashes using keyword splat https://bugs.ruby-lang.org/issues/15536#change-76343 * Author: decuplet (Nikita Shilnikov) * Status: Closed * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.5.3p105 (2018-10-18 revision 65156) [x86_64-linux] * Backport: 2.4: UNKNOWN, 2.5: REQUIRED, 2.6: REQUIRED ---------------------------------------- Here's a snippet that leads to a crash on ruby 2.5.3. I tried to make it as small as possible. ```ruby 1000.times do { **{ a1: nil, a2: nil, a3: nil, a4: nil, a5: nil, a6: nil, a7: nil, a8: nil, a9: nil }, b1: nil, b2: nil, a4: nil, **{ c1: nil, c2: nil }, a7: nil, a8: nil, a9: nil, } end ``` Results in `*** Error in irb': malloc(): memory corruption: 0x000055ca6c832bd0 ***` (more detail in the attached file). We came across this on ruby 2.5.3 and as far as I can tell it's no longer a problem on 2.6 but we yet to upgrade. ---Files-------------------------------- segfault.txt (30.8 KB) -- https://bugs.ruby-lang.org/