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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 5DD89C11D30 for ; Mon, 24 Feb 2020 11:46:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3599120838 for ; Mon, 24 Feb 2020 11:46:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727521AbgBXLqD (ORCPT ); Mon, 24 Feb 2020 06:46:03 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:54577 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727429AbgBXLqC (ORCPT ); Mon, 24 Feb 2020 06:46:02 -0500 Received: by mail-il1-f198.google.com with SMTP id t4so17805994ili.21 for ; Mon, 24 Feb 2020 03:46:01 -0800 (PST) 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=TPDa8vA3dA5ocPrn3u12l+xTYIvr8/gY5caMU69qWlU=; b=ClHxSw/PS8pLWGkr7/fVhHSAqF9s1JBQbG2jE1UYyOJMzhuw+pxJx3jKV5ZkX9EP5/ NL0BnZ0/r3kSp1SRRaKbV+52c6V6NtTkXRJkS6Z0eJejy00jTEVBPcXXcduRyEhsN4J9 vCfJj+XmtiRGUuBaBKkHC41x1ntKM2jeJuRGibppRwaE1WhWJAvGSSL2yqO5DcCl77VS xHmHRrhQs0dPJ/ftXozCDmeAtL+PoWucYGfo0W6j0mH/cwXbKp/V3CNKXp3S5ld/Q1nT 1FvYvl2pDbGPHs1QREvxFhIT4sv2QrBtVk+Gcw9zLICIjQK1jKHtWmQoLp3Nwtx+9xsQ kp/g== X-Gm-Message-State: APjAAAXYxyFp0oHN41ZHNerdrad9SEx0loJFLflgDP9zicgHPSl1Zq4/ B8bRZIoz5AXErwMyLcpdwhpXzieLWZcqhejvtPt9zzb+TedU X-Google-Smtp-Source: APXvYqw8hJLLKQWy7t1wn0gt4p/CBTAWcz0u7a08HT32PVYseKb6Zst8oSvvhVBG6HkcXdOrZxccOixjo3lFs6l0GucGK/G5V7q9 MIME-Version: 1.0 X-Received: by 2002:a6b:730c:: with SMTP id e12mr48673976ioh.4.1582544761598; Mon, 24 Feb 2020 03:46:01 -0800 (PST) Date: Mon, 24 Feb 2020 03:46:01 -0800 In-Reply-To: <00000000000005efef059f4e27e1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005b46ba059f50ea17@google.com> Subject: Re: KASAN: use-after-free Read in ethnl_update_bitset32 From: syzbot To: davem@davemloft.net, f.fainelli@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, mkubecek@suse.cz, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit bfbcfe2032e70bd8598d680d39ac177d507e39ac Author: Michal Kubecek Date: Fri Dec 27 14:56:13 2019 +0000 ethtool: set link modes related data with LINKMODES_SET request bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16d59109e00000 start commit: 0c0ddd6a Merge tag 'linux-watchdog-5.6-rc3' of git://www.l.. git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=15d59109e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11d59109e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=3b8906eb6a7d6028 dashboard link: https://syzkaller.appspot.com/bug?extid=709b7a64d57978247e44 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13885de9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1518127ee00000 Reported-by: syzbot+709b7a64d57978247e44@syzkaller.appspotmail.com Fixes: bfbcfe2032e7 ("ethtool: set link modes related data with LINKMODES_SET request") For information about bisection process see: https://goo.gl/tpsmEJ#bisection