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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFBDAC43334 for ; Thu, 23 Jun 2022 07:35:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230355AbiFWHfS (ORCPT ); Thu, 23 Jun 2022 03:35:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230274AbiFWHfP (ORCPT ); Thu, 23 Jun 2022 03:35:15 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CB7546662 for ; Thu, 23 Jun 2022 00:35:14 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id g9-20020a056e020d0900b002d958b2a86dso401908ilj.14 for ; Thu, 23 Jun 2022 00:35:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=7QItAS8B1/7qL5yTPxj88y2NM1HLwSWmFz7/r/sTOpw=; b=xsI2tuy5Per3z2drsHHf0KyXbJnWGEW1pem3q0K4kkbek90zekvMBiWV20cmv/Pnta Zx+XfL75opaLT1TxzQ6RH3/cS+fifTH5RXe8YBHrs6AYVv+/3sTR1zcf2eiTEq9G25ma qUgvNNWEdksMfDuveRsBVXgFURepF/2BE0Zh2CUhwT8kny7IB0NnC4lVg930k2TNNR9f z5R51eK/E5YygZd3v5uzRi4oy5+LW8gkOfiCaDuMtbZKP5zrDFKNLrWTQxq1F8zQrX1y Ld3mUy7yfGrnQcsAlQBnlJjOvAXFcVHEYDa0ncwbEujKRiL7cVu7mlW0G7GyBuFHRRJ9 MEMQ== X-Gm-Message-State: AJIora85qT5yBQ2e/Q094Ww5+PkERUTrgGnrUmmAs2kPxNiSXsj6ozVs RFiEiFVB5BzA/c2sqdUef3lBIPBKifH4umB5WOA1qD5Hod4+ X-Google-Smtp-Source: AGRyM1uDHnpelBbH4pNfjqs05S1Tv86HE01S7bBLQKv9VdmULK/vAW25cGgGt/yXk/plAf0qQ01oPQbiNstvymQby6B/VLWIJO9i MIME-Version: 1.0 X-Received: by 2002:a05:6638:38a0:b0:331:ec50:d191 with SMTP id b32-20020a05663838a000b00331ec50d191mr4517568jav.40.1655969713718; Thu, 23 Jun 2022 00:35:13 -0700 (PDT) Date: Thu, 23 Jun 2022 00:35:13 -0700 In-Reply-To: <000000000000b9edeb05e1aca987@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008b8cd205e2187ea2@google.com> Subject: Re: [syzbot] WARNING: suspicious RCU usage (5) From: syzbot To: alobakin@pm.me, bp@alien8.de, daniel@iogearbox.net, hpa@zytor.com, jmattson@google.com, john.fastabend@gmail.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, pbonzini@redhat.com, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org, xuanzhuo@linux.alibaba.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit c2ff53d8049f30098153cd2d1299a44d7b124c57 Author: Xuan Zhuo Date: Thu Feb 18 20:50:02 2021 +0000 net: Add priv_flags for allow tx skb without linear bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11596838080000 start commit: a5b00f5b78b7 Merge branch 'hns3-fixres' git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=13596838080000 console output: https://syzkaller.appspot.com/x/log.txt?x=15596838080000 kernel config: https://syzkaller.appspot.com/x/.config?x=20ac3e0ebf0db3bd dashboard link: https://syzkaller.appspot.com/bug?extid=9cbc6bed3a22f1d37395 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143b22abf00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125194eff00000 Reported-by: syzbot+9cbc6bed3a22f1d37395@syzkaller.appspotmail.com Fixes: c2ff53d8049f ("net: Add priv_flags for allow tx skb without linear") For information about bisection process see: https://goo.gl/tpsmEJ#bisection