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 BA9E6C4332F for ; Tue, 13 Dec 2022 20:51:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237030AbiLMUvd (ORCPT ); Tue, 13 Dec 2022 15:51:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237012AbiLMUv2 (ORCPT ); Tue, 13 Dec 2022 15:51:28 -0500 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6BFE1EAE8 for ; Tue, 13 Dec 2022 12:51:26 -0800 (PST) Received: by mail-io1-f71.google.com with SMTP id z9-20020a6be009000000b006e0577c3686so2670326iog.0 for ; Tue, 13 Dec 2022 12:51:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=UDc7/rZ+mBKdUtjFutRJIRW7wkURndgGrP5AD0QPxqo=; b=bPoViTSNFZGnjUXMP6SEcTk+CLV4bNxESnfT+irXCsjINvhx0+GBxTrJN9oNHLHMDe NFLqtBx7nNkZ/gxkDbO03/IX3yfs7tLDqlD0KKNxPg08AL3aMQS8K7Nxq/X2OLUiivLv z7RIu0SnyRHR3/A6KcdcW3QivWbQVtt4NehRIcoje1yawbX6J7uRk2Ai33OkAkxfF0jH hcezu/5GtT/YYmiUJzGFQ086RSvcz3EYSPfpFZhUvvQiuKXJrTLvMolqApLgjW9KVJUg QFRcRjPhUbK8cG5Gc1ejRggWa1PuDLPGZqL5SOEG6eDQsJ7273KWmyGgyDDpmcLilENI 8D3w== X-Gm-Message-State: ANoB5pmWADigXG6j4HdEc24g81HFxvaDgiU6JjV7WPiyMARjd15vaMOb mvVl5cMTgMSUmh33pjn3U/OgBnDK6GrYhKbXp/rUooUo/odu X-Google-Smtp-Source: AA0mqf7WGfoEes8mrOe2kmB344G6gzyTMwyTinYcSPJxngDTfvSN/CCeov4ouvk1a9R90eMM9qiSFR87hJkMlYyN/QJ4BzF/UD6+ MIME-Version: 1.0 X-Received: by 2002:a92:ca8b:0:b0:304:a621:5c56 with SMTP id t11-20020a92ca8b000000b00304a6215c56mr1099437ilo.148.1670964686133; Tue, 13 Dec 2022 12:51:26 -0800 (PST) Date: Tue, 13 Dec 2022 12:51:26 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008ca17805efbbc87f@google.com> Subject: Re: [syzbot] KASAN: use-after-free Write in gadgetfs_kill_sb From: syzbot To: gregkh@linuxfoundation.org, hbh25y@gmail.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mingo@kernel.org, rdunlap@infradead.org, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4116 } 2668 jiffies s: 2777 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: 830b3c68 Linux 6.1 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ console output: https://syzkaller.appspot.com/x/log.txt?x=12066e8b880000 kernel config: https://syzkaller.appspot.com/x/.config?x=5a194ed4fc682723 dashboard link: https://syzkaller.appspot.com/bug?extid=33d7ad66d65044b93f16 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=16793e8f880000