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=-5.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 B87E9C43141 for ; Fri, 15 Nov 2019 17:51:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 92D982073A for ; Fri, 15 Nov 2019 17:51:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="EorYr20i" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726750AbfKORvY (ORCPT ); Fri, 15 Nov 2019 12:51:24 -0500 Received: from mail-pg1-f193.google.com ([209.85.215.193]:37925 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725907AbfKORvY (ORCPT ); Fri, 15 Nov 2019 12:51:24 -0500 Received: by mail-pg1-f193.google.com with SMTP id 15so6343458pgh.5 for ; Fri, 15 Nov 2019 09:51:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=message-id:mime-version:content-transfer-encoding:in-reply-to :references:to:subject:from:user-agent:date; bh=dLhYkfUvuM3MR/JcrrR7Nokdc6ORsY2H2jUYzk/2iMw=; b=EorYr20iszXneZR3cFgWw+iMhIgDDQXoL2/uXYakczV+sXoukhMfHWMbzspvnCFdxg kAwA6q3qrOE3B5BWKlVn0ruxtti1+d5w6tOTNC+cIbDCekuAZbgvcjjKh4duLjDGWiip JtuFNGj/xEp7OOMwY3CiHkt/F0ypAKegBWMU0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:mime-version :content-transfer-encoding:in-reply-to:references:to:subject:from :user-agent:date; bh=dLhYkfUvuM3MR/JcrrR7Nokdc6ORsY2H2jUYzk/2iMw=; b=Pz4I57w0wJC4/QaPH3XE/vD5OsTNAvbgqmSJ0NF5Ob/mUw4hJxBlmC718gVr0uJMHF 5v4Xuo+a618D37XWKMsogtTFTGIfHpLT8BH4SIPoMDvMBHS6RzwijVGB8kc6ZU/Fh3nm M/QJM59Qd0yzV0RzghdLi4WM3UDWS0KyPTPJiPYnAI7lLh7JsBv8HW6NDrDKeAJqGu24 57vyKwY2CippLm07MgpaySXqAA+WGsPKbPeN60+zHA26KbjyCYnDKXON3xlzK5BnHlqg vrje4r6CA0Vfk/pKDlmx1lGqwa4//4sL3fdsqEVH7dIknMdUQgzJ2EzGFCHfdo4ps0+6 3qXA== X-Gm-Message-State: APjAAAXyfupjjCfv+uiPJoUNdKn/JPlr3Rvpp+IHJMf/JKIH0qrgzvP/ 88HAACgp2KbZ4hdQCxEVGBeGlg== X-Google-Smtp-Source: APXvYqwcLOBA5BoQIkVOeY36QAMv4CCxUyLegLofHm0JXeFtgI1ujTzkBTIiWgzH4iVDJ99l3Wkk2g== X-Received: by 2002:a63:1d0a:: with SMTP id d10mr2492394pgd.242.1573840282995; Fri, 15 Nov 2019 09:51:22 -0800 (PST) Received: from chromium.org ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id v10sm10079543pgr.37.2019.11.15.09.51.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2019 09:51:22 -0800 (PST) Message-ID: <5dcee59a.1c69fb81.188d.e4b9@mx.google.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <000000000000cdaa560596acbc4e@google.com> References: <000000000000cdaa560596acbc4e@google.com> To: alexandre.belloni@bootlin.com, andreyknvl@google.com, arnd@arndb.de, b.zolnierkie@samsung.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, lvivier@redhat.com, mchehab+samsung@kernel.org, mpm@selenic.com, syzbot , syzkaller-bugs@googlegroups.com Subject: Re: INFO: task hung in chaoskey_disconnect From: Stephen Boyd User-Agent: alot/0.8.1 Date: Fri, 15 Nov 2019 09:51:21 -0800 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting syzbot (2019-11-06 04:32:09) > Hello, >=20 > syzbot found the following crash on: >=20 > HEAD commit: b1aa9d83 usb: raw: add raw-gadget interface > git tree: https://github.com/google/kasan.git usb-fuzzer > console output: https://syzkaller.appspot.com/x/log.txt?x=3D16ae2adce00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3D79de80330003b= 5f7 > dashboard link: https://syzkaller.appspot.com/bug?extid=3Df41c4f7c6d8b0b7= 78780 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D10248158e00= 000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D16afbf7ce00000 >=20 > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+f41c4f7c6d8b0b778780@syzkaller.appspotmail.com I suspect this is because of the kthread getting stuck problem reported by Maciej. Maybe try the commit that Herbert picked up. #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6= .git linus