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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 B45A3C433E2 for ; Fri, 4 Sep 2020 09:17:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B9C920748 for ; Fri, 4 Sep 2020 09:17:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730048AbgIDJRM (ORCPT ); Fri, 4 Sep 2020 05:17:12 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:47617 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729824AbgIDJRJ (ORCPT ); Fri, 4 Sep 2020 05:17:09 -0400 Received: by mail-il1-f199.google.com with SMTP id l6so2860504ilm.14 for ; Fri, 04 Sep 2020 02:17:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=A0XXOCOsCKpVbiOmCtSMND7R8pvo4WiohDym5VmGicM=; b=G40eY8vKJnz63Z7Jm0CYR6dkIyT5uhYFE8pQk+NiiNcdCp8NRCteWsGnpZ36NJ5Acg FY5n7jArMJ+WxROL7IgI6bVFVa9qxaZ8/O2pIqBB7QwBuNwKi/0580gcZE2etIFUUv0P 7C9DAfaUaXd5m4C15E7S0m6QwotjKdiIqnNCrNTso04wan7n0Bn38CSEtroN7tj4yRiv J5+56fXBBuXyQugnxV35QhRxO31ldPge4FGfDY+aqYL2aiKO/lHH7gFSjcPNr3z7lH7p OEmZkaREkrmOwCu/5UwLO701vPzdwNQjxjTIsftueUhINO2l2jVdt0CC8RDjQvGir8a+ 1FFg== X-Gm-Message-State: AOAM530SLG5+OAqqzcZfb1ThxjZNpgfn2OhlXOWY2+PWmgRdcE+ZEPW8 iQrOBr/e4fG4hfLckVHii4zTKAivJN1PnGZKsekjKsRJZ+ff X-Google-Smtp-Source: ABdhPJz4l9diDvi6JeZoFv4l/8t/lebVi6lVVRaf0FpautrVybTTmaZYgtTJ+rMvN9/aU+pvBmFLgHlR3xJZ/DGghivcPWtVoGV3 MIME-Version: 1.0 X-Received: by 2002:a92:6606:: with SMTP id a6mr6903338ilc.128.1599211028247; Fri, 04 Sep 2020 02:17:08 -0700 (PDT) Date: Fri, 04 Sep 2020 02:17:08 -0700 In-Reply-To: <000000000000a358f905ae6b5dc6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000427d4405ae795514@google.com> Subject: Re: KASAN: use-after-free Read in dump_schedule From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, leandro.maciel.dorileo@intel.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, vedang.patel@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit 7b9eba7ba0c1b24df42b70b62d154b284befbccf Author: Leandro Dorileo Date: Mon Apr 8 17:12:17 2019 +0000 net/sched: taprio: fix picos_per_byte miscalculation bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15464af9900000 start commit: fc3abb53 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=17464af9900000 console output: https://syzkaller.appspot.com/x/log.txt?x=13464af9900000 kernel config: https://syzkaller.appspot.com/x/.config?x=e1c560d0f4e121c9 dashboard link: https://syzkaller.appspot.com/bug?extid=621fd33c0b53d15ee8de syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1129d0e9900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17fb6a25900000 Reported-by: syzbot+621fd33c0b53d15ee8de@syzkaller.appspotmail.com Fixes: 7b9eba7ba0c1 ("net/sched: taprio: fix picos_per_byte miscalculation") For information about bisection process see: https://goo.gl/tpsmEJ#bisection