From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B4CFC76186 for ; Tue, 23 Jul 2019 22:23:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 635CF22387 for ; Tue, 23 Jul 2019 22:23:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563920622; bh=uBsA8GDHuhAVNuUiMbR5RWdtNhGExXIqRYqiBQBznVM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=Z2hkPHeQwd5gpgKx63CSepoIvHeEZ7mJDtT0h9996oOs6q7yoaotgt0e4MIxsj6Fz YOwx4bjfpCl5vGwcdBK9Y5ueJ2hLa051VmSxtfLiRUdNjs9veh0h6WnjKBvokwgV/V FqQVDppPycNRvEsbMpUEDVRax36SuwBoe9Nwhnh4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387679AbfGWWXi (ORCPT ); Tue, 23 Jul 2019 18:23:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:39342 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727821AbfGWWXi (ORCPT ); Tue, 23 Jul 2019 18:23:38 -0400 Received: from akpm3.svl.corp.google.com (unknown [104.133.8.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 02FCA2184B; Tue, 23 Jul 2019 22:23:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563920617; bh=uBsA8GDHuhAVNuUiMbR5RWdtNhGExXIqRYqiBQBznVM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=wmqoLBNEU59749cAIdtDiPO8nvp7PxJQI9ewxTcc+L1Xd7lnuJv+9qwibx5sHtUan RqW9eXOhlRopxUm3/OKqHcynaQp6bLqrndRcXz9mJUp66kNSAOb3fR67OaD5nAJOWF /LBHk+b1AjIHOOVAj4oRNERceeD1w80KpDyBeD10= Date: Tue, 23 Jul 2019 15:23:36 -0700 From: Andrew Morton To: syzbot Cc: catalin.marinas@arm.com, davem@davemloft.net, dvyukov@google.com, jack@suse.com, kirill.shutemov@linux.intel.com, koct9i@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rdma@vger.kernel.org, neilb@suse.de, netdev@vger.kernel.org, rds-devel@oss.oracle.com, ross.zwisler@linux.intel.com, santosh.shilimkar@oracle.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, willy@linux.intel.com Subject: Re: memory leak in rds_send_probe Message-Id: <20190723152336.29ed51551d8c9600bb316b52@linux-foundation.org> In-Reply-To: <00000000000034c84a058e608d45@google.com> References: <000000000000ad1dfe058e5b89ab@google.com> <00000000000034c84a058e608d45@google.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, 23 Jul 2019 15:17:00 -0700 syzbot wrote: > syzbot has bisected this bug to: > > commit af49a63e101eb62376cc1d6bd25b97eb8c691d54 > Author: Matthew Wilcox > Date: Sat May 21 00:03:33 2016 +0000 > > radix-tree: change naming conventions in radix_tree_shrink > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=176528c8600000 > start commit: c6dd78fc Merge branch 'x86-urgent-for-linus' of git://git... > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=14e528c8600000 > console output: https://syzkaller.appspot.com/x/log.txt?x=10e528c8600000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8de7d700ea5ac607 > dashboard link: https://syzkaller.appspot.com/bug?extid=5134cdf021c4ed5aaa5f > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145df0c8600000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=170001f4600000 > > Reported-by: syzbot+5134cdf021c4ed5aaa5f@syzkaller.appspotmail.com > Fixes: af49a63e101e ("radix-tree: change naming conventions in > radix_tree_shrink") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection That's rather hard to believe. af49a63e101eb6237 simply renames a couple of local variables.