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=-8.7 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=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 4858CC11F66 for ; Wed, 14 Jul 2021 13:53:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 33E25613C0 for ; Wed, 14 Jul 2021 13:53:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232702AbhGNN4B (ORCPT ); Wed, 14 Jul 2021 09:56:01 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:36631 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232614AbhGNNz7 (ORCPT ); Wed, 14 Jul 2021 09:55:59 -0400 Received: by mail-io1-f72.google.com with SMTP id 18-20020a5d9c520000b029043af67da217so1283026iof.3 for ; Wed, 14 Jul 2021 06:53:07 -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:cc; bh=N/ycyVbAKypvr4aBP5b55WvZDTbuQtOis8h6IsI4I8Y=; b=a0Qz9UeOGUsWsCbIGADlA1T398QdEgVhVe9jt3p5FP15szMky11EriVrFWaleLRxgL mtDbsvEnmisz1WJNphcxeG+Cx5NfRd85JWFmq7BJlC/xz0pFRxXbkceOe5zi/An0oltm 6N/wKkKRC2XGx7K8/ZkJ5l105zq3/NhWa79AqwJOczhnToeouH42XHfQ7etpe1gbhJT6 8ojzOy1hxgdNPl2b8cnkj5xLa3wOYR3B66TFsMNafJnLO2gg1XE/TWOGlKLUTcI+NQkb XXUKXAas4YillAp4yJ5LQT9oVvjg1WL5vVcb/fcxPvZY0Pi+/KFGG5Q5cdHUcRcUl2v+ 3D1g== X-Gm-Message-State: AOAM531VGZfyCuCoIKZbgQgPz1QeXx23Trjms9+Cl7ujVSdhyazm859u e1Ui7nEApMvvX/rDi3z1cRw9nUt4PKQvAn405LpthHD50NW7 X-Google-Smtp-Source: ABdhPJwQdxjhrMVlfTQyNZM+LDXFnlq95h5YyTDBNso5mIVX03pNd6lV7JZTvGSZTr60tx1ZMBXA8WcmrMx8Kqoljbod+w0Q8tc6 MIME-Version: 1.0 X-Received: by 2002:a92:9509:: with SMTP id y9mr6815314ilh.18.1626270787271; Wed, 14 Jul 2021 06:53:07 -0700 (PDT) Date: Wed, 14 Jul 2021 06:53:07 -0700 In-Reply-To: <20210714135300.hrssd4d6ydvvytgb@wittgenstein> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009584d605c715ac7e@google.com> Subject: Re: [syzbot] KASAN: null-ptr-deref Read in filp_close (2) From: syzbot To: Christian Brauner Cc: brauner@kernel.org, christian.brauner@ubuntu.com, dvyukov@google.com, gregkh@linuxfoundation.org, gscrivan@redhat.com, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, stable-commits@vger.kernel.org, stable@vger.kernel.org, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Mon, Jul 12, 2021 at 09:12:20PM -0700, syzbot wrote: >> syzbot has found a reproducer for the following issue on: >> >> HEAD commit: 7fef2edf sd: don't mess with SD_MINORS for CONFIG_DEBUG_BL.. >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=178919b0300000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=20276914ec6ad813 >> dashboard link: https://syzkaller.appspot.com/bug?extid=283ce5a46486d6acdbaf >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=120220f2300000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=115f37b4300000 >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+283ce5a46486d6acdbaf@syzkaller.appspotmail.com > > #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git/ syzbot+283ce5a46486d6acdbaf "syzbot+283ce5a46486d6acdbaf" does not look like a valid git branch or commit.