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[198.145.29.99]) by mx.google.com with ESMTPS id a20si13948879pgm.549.2019.07.23.15.23.37 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Jul 2019 15:23:37 -0700 (PDT) Received-SPF: pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=wmqoLBNE; spf=pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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.