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Sat, 7 Dec 2024 09:58:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ruby-lang.org; h=from:references:subject:mime-version:content-type: content-transfer-encoding:list-id:to:cc:content-type:from:subject:to; s=s1; bh=tPIQHagnQ14MQ/LLkk7cwV7GzOW1ntQEQcNzcbkMcaE=; b=WV8j1XnbPU0acY20Q3y7fnkgZHDNjc+a6pXsXdYn3Fd7p+kHrJrT6tovMO4MzmlNu7Fz l52buGEgv+j1Qia5BVotzyeWVpoAUIpLePjYTy1om0Ur66f8Byr4EN6xTj+jdk1fMVJlIG H7Cm5YAQFDL1vstZlRMu6EHnZHXjE/piKpcodm6wV9Jf42qqjqdDTRRNN32V76Yu8xUZWU OWxZtkilzFWOCBKwzP0KCCpVijw6pTfVPTUVFn3Vqqd1uCkYB1LG+KXqtarJ3p16BKwf0z mNfgxVHpZbf9LLfFqV41bXloZr+6UeY22ZOL5oXzu+acEwpmIgFPXWe8LCElH93Q== Received: by recvd-69cbc48b94-mls98 with SMTP id recvd-69cbc48b94-mls98-1-67541C3C-8 2024-12-07 09:58:20.198771185 +0000 UTC m=+1946189.632766756 Received: from herokuapp.com (unknown) by geopod-ismtpd-15 (SG) with ESMTP id FVxRoORjRQ2t92_V4c2yZQ for ; Sat, 07 Dec 2024 09:58:20.173 +0000 (UTC) Date: Sat, 07 Dec 2024 09:58:20 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 X-Redmine-Project: ruby-master X-Redmine-Issue-Tracker: Bug X-Redmine-Issue-Id: 20934 X-Redmine-Issue-Author: wanabe X-Redmine-Issue-Priority: Normal X-Redmine-Sender: wanabe 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-Redmine-MailingListIntegration-Message-Ids: 96805 X-SG-EID: =?us-ascii?Q?u001=2E9Qxdz4h1P1vCEXKqAHzcTzXXk4TC5lKmvoCuUr5AQGi=2Fm21wFVOcdxeUy?= =?us-ascii?Q?E5vWsWZJcXotHlkHbXqgsfUE5Y7MnNdIWJnpSP1?= =?us-ascii?Q?RjRQSpnOxfZl=2FpLbmM9REJWZOEJKYOACNUV8uA4?= =?us-ascii?Q?KpXNhyn6edR5zgyNg5ZN7uaSBpLxe0FvRlTVW2m?= =?us-ascii?Q?OEEG8rBnOnhgt2YOQcfDzNlDWSt9andwiRd5Psi?= =?us-ascii?Q?jyvhj0DKOSomqq4ExjejLCVLygCzMrI69OaCxxc?= =?us-ascii?Q?sm0p?= To: ruby-core@ml.ruby-lang.org X-Entity-ID: u001.I8uzylDtAfgbeCOeLBYDww== Message-ID-Hash: AH7O3EVUVJWSOPNVDVLQE63TVXLTJ7XB X-Message-ID-Hash: AH7O3EVUVJWSOPNVDVLQE63TVXLTJ7XB X-MailFrom: bounces+313651-b711-ruby-core=ml.ruby-lang.org@em5188.ruby-lang.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list Reply-To: Ruby developers Subject: [ruby-core:120128] [Ruby master Bug#20934] `UnboundMethod#bind_call` may cause "double free or corruption" with Ractor List-Id: Ruby developers Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: "wanabe (_ wanabe) via ruby-core" Cc: "wanabe (_ wanabe)" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Issue #20934 has been reported by wanabe (_ wanabe). ---------------------------------------- Bug #20934: `UnboundMethod#bind_call` may cause "double free or corruption" with Ractor https://bugs.ruby-lang.org/issues/20934 * Author: wanabe (_ wanabe) * Status: Open * ruby -v: ruby 3.4.0dev (2024-12-06T18:51:08Z :detached: 8ad6860ff7) +PRISM [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- When I call `UnboundMethod#bind_call` on both main Ractor and child Ractor, probable errors can be encountered. Here is an issue reproduce script `ractor_issue.rb`. ``` def foo 10000.times do Object.instance_method(:object_id).bind_call(self) end end Ractor.new { foo } foo ``` And there are some examples of execution results. ``` $ ./miniruby -v ractor_issue.rb ruby 3.4.0dev (2024-12-06T18:51:08Z :detached: 8ad6860ff7) +PRISM [x86_64-linux] ractor_issue.rb:7: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. double free or corruption (fasttop) Aborted (core dumped) ``` ``` $ ./miniruby -v ractor_issue.rb ruby 3.4.0dev (2024-12-06T18:51:08Z :detached: 8ad6860ff7) +PRISM [x86_64-linux] ractor_issue.rb:7: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. # terminated with exception (report_on_exception is true): ractor_issue.rb:3:in 'UnboundMethod#bind_call': undefined method 'object_id' for main (NoMethodError) from ractor_issue.rb:3:in 'block in Object#foo' from :257:in 'Integer#times' from ractor_issue.rb:2:in 'Object#foo' from ractor_issue.rb:8:in '
' ``` Please try running it several times, as there is a probability of successful completion. -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/