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=0.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_MUTT autolearn=no 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 0AF58C48BD7 for ; Tue, 25 Jun 2019 23:48:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D54E8208E3 for ; Tue, 25 Jun 2019 23:48:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561506493; bh=IIPnw17DMud2IaI5vgEyfR+P3UuBx+ITkJ6rG4E0/Zw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=0ehvEglad/Q4YU6L7PkF4MD0rdxt8rX8Y8KSrKthaPYjVW0CU1ZznnhDKNuV3wmYe gjbZNzKWQgB1ocT+b/HttfIKVMHpZo/R8uP1NxJ+YFtXQ462Cl+RQUWFrWeAzWLW3X fPZiIHpjCc4VY7CbTrlZqV6SGsccKlY0qesDoTzQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726422AbfFYXsM (ORCPT ); Tue, 25 Jun 2019 19:48:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:39846 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726037AbfFYXsM (ORCPT ); Tue, 25 Jun 2019 19:48:12 -0400 Received: from gmail.com (unknown [104.132.1.77]) (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 905A92086D; Tue, 25 Jun 2019 23:48:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561506491; bh=IIPnw17DMud2IaI5vgEyfR+P3UuBx+ITkJ6rG4E0/Zw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YdV2OgLAzb3QWIbIVBE+1Nl4jWGTlSEpUeKyjuhshQ5iyMDWHYzMnPwdXtw4XiTNM Qlxvmu3vya3XBKrFZhs2Es4bATlzE9X90mNaVtgT3Pb2Mf6AIFRrheD9lOiitAgGAM aOWIXSJfI4ZF3nZLsa28aqfknN+f2T7fsNojlPCM= Date: Tue, 25 Jun 2019 16:48:09 -0700 From: Eric Biggers To: John Fastabend Cc: syzbot , akpm@linux-foundation.org, ast@kernel.org, cai@lca.pw, crecklin@redhat.com, daniel@iogearbox.net, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, bpf@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: slab-out-of-bounds Write in validate_chain Message-ID: <20190625234808.GB116876@gmail.com> References: <000000000000e672c6058bd7ee45@google.com> <0000000000007724d6058c2dfc24@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000007724d6058c2dfc24@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi John, On Tue, Jun 25, 2019 at 04:07:00PM -0700, syzbot wrote: > syzbot has bisected this bug to: > > commit e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650 > Author: John Fastabend > Date: Sat Jun 30 13:17:47 2018 +0000 > > bpf: sockhash fix omitted bucket lock in sock_close > Are you working on this? This is the 6th open syzbot report that has been bisected to this commit, and I suspect it's the cause of many of the other 30 open syzbot reports I assigned to the bpf subsystem too (https://lore.kernel.org/bpf/20190624050114.GA30702@sol.localdomain/). Also, this is happening in mainline (v5.2-rc6). - Eric