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 34746C433FE for ; Tue, 22 Feb 2022 03:28:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240782AbiBVD2i (ORCPT ); Mon, 21 Feb 2022 22:28:38 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:48642 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240070AbiBVD2g (ORCPT ); Mon, 21 Feb 2022 22:28:36 -0500 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1723222B20 for ; Mon, 21 Feb 2022 19:28:10 -0800 (PST) Received: by mail-io1-f72.google.com with SMTP id y11-20020a056602164b00b00640ddd94d80so3521546iow.11 for ; Mon, 21 Feb 2022 19:28:10 -0800 (PST) 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=jn1v1wrtUy0we1aF2ni8zoooQ45E+ro5had3wgyBV54=; b=K8jyQqHu77rsihitI3AbOKYEl7zhKbdQmzZdbcxVKc9wsX3XiMn7XgaPMroBp3kNIp ViqFLj1jIIAK0GJ+gOJalBLo+wn04xDO/13bgmu0P5fcx0qWHJjh6K6uCDVStFUXoZyd eWRRD+t5Jtd9+fyTN93iF8yX6UKzf+dYT0zRSLw4vABiyC+7LehBOr0SxzlVw6IbJO6m FmKfre6wWVGflNjSbQb1JAB0n6EMfgtgJVDs8+JFUotZbL1jC3XBw4zHxpkuZVnl3IIc IRsaSggdwNGQLO8uC0zk1zB/xfmTBJcQFqrBoEqR6K66jjAdh3py/ydOJ/jdD5EC+AXj jT5Q== X-Gm-Message-State: AOAM532lXtQ9BVeHgfTNV59CuuVRUe2RfM0oUzNqlM40mfIV5bLOAWjx zgU0e81VMwffWfbD7nI60sIWZL5axqXBRguPzJQwTIe6/zOK X-Google-Smtp-Source: ABdhPJwvcdGWpoK/XmWmrt/RJmM7zJMzG1YEJtPZ2U2O45PYEbMt2BhVRCfFBhCzCJlCLVEnBbK1cFfhGL/cB+uriO9DuGX7UU0r MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a07:b0:2be:1b0:bd05 with SMTP id s7-20020a056e021a0700b002be01b0bd05mr19161773ild.211.1645500489485; Mon, 21 Feb 2022 19:28:09 -0800 (PST) Date: Mon, 21 Feb 2022 19:28:09 -0800 In-Reply-To: <000000000000264b2a05d44bca80@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002752dc05d892f094@google.com> Subject: Re: [syzbot] WARNING in cpuset_write_resmask From: syzbot To: cgroups@vger.kernel.org, changbin.du@intel.com, christian.brauner@ubuntu.com, davem@davemloft.net, edumazet@google.com, hannes@cmpxchg.org, hkallweit1@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, lizefan.x@bytedance.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org, yajun.deng@linux.dev Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit e4b8954074f6d0db01c8c97d338a67f9389c042f Author: Eric Dumazet Date: Tue Dec 7 01:30:37 2021 +0000 netlink: add net device refcount tracker to struct ethnl_req_info bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15c42532700000 start commit: e5313968c41b Merge branch 'Split bpf_sk_lookup remote_port.. git tree: bpf-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17c42532700000 console output: https://syzkaller.appspot.com/x/log.txt?x=13c42532700000 kernel config: https://syzkaller.appspot.com/x/.config?x=c40b67275bfe2a58 dashboard link: https://syzkaller.appspot.com/bug?extid=568dc81cd20b72d4a49f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13bb97ce700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12062c8e700000 Reported-by: syzbot+568dc81cd20b72d4a49f@syzkaller.appspotmail.com Fixes: e4b8954074f6 ("netlink: add net device refcount tracker to struct ethnl_req_info") For information about bisection process see: https://goo.gl/tpsmEJ#bisection