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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C501C19F2C for ; Mon, 1 Aug 2022 10:24:13 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id D464841503; Mon, 1 Aug 2022 10:24:12 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org D464841503 Authentication-Results: smtp4.osuosl.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=M2HFP7Za X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 19XiCN4vQnMX; Mon, 1 Aug 2022 10:24:11 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp4.osuosl.org (Postfix) with ESMTPS id 8256E409F1; Mon, 1 Aug 2022 10:24:11 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 8256E409F1 Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2F463C0032; Mon, 1 Aug 2022 10:24:11 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 66DB1C002D for ; Mon, 1 Aug 2022 10:24:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 11CE6607E1 for ; Mon, 1 Aug 2022 10:24:09 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 11CE6607E1 Authentication-Results: smtp3.osuosl.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=M2HFP7Za X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id u_fbxBkn2vj7 for ; Mon, 1 Aug 2022 10:24:08 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 32E506068D Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by smtp3.osuosl.org (Postfix) with ESMTPS id 32E506068D for ; Mon, 1 Aug 2022 10:24:08 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 21F1561122; Mon, 1 Aug 2022 10:24:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2C783C433D6; Mon, 1 Aug 2022 10:24:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1659349446; bh=aZ5KzaP2kedlbYW3tFmm//ddOrI7TYRpUXxPO9v7KlU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=M2HFP7ZaVHaYxu0hQciwzi/nzE3T0b/0margR75eCj7z/YgWoMkoWtpvaRXw+MdyH M2BJA54FAtA5+FdsQS7oiDMNMmX6pTloBd6ojxseqdSeOn75NQ8XIn5M9qQPQVpzym LSaiQnkqo6Yd8rIz7Jx+xUtNddCy9WlbZfOfyoC4= Date: Mon, 1 Aug 2022 12:24:03 +0200 From: Greg KH To: Siddh Raman Pant Subject: Re: [PATCH v3] kernel/watch_queue: Make pipe NULL while clearing watch_queue Message-ID: References: <20220728155121.12145-1-code@siddh.me> <18258c1d370.6c4bec7a269297.4170944235031209431@siddh.me> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <18258c1d370.6c4bec7a269297.4170944235031209431@siddh.me> Cc: Eric Dumazet , linux-kernel , "Fabio M. De Francesco" , Dipanjan Das , syzbot+c70d87ac1d001f29a058 , David Howells , linux-security-modules , Christophe JAILLET , linux-kernel-mentees X-BeenThere: linux-kernel-mentees@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-kernel-mentees-bounces@lists.linuxfoundation.org Sender: "Linux-kernel-mentees" A: http://en.wikipedia.org/wiki/Top_post Q: Were do I find info about this thing called top-posting? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? A: No. Q: Should I include quotations after my reply? http://daringfireball.net/2007/07/on_top On Mon, Aug 01, 2022 at 03:04:33PM +0530, Siddh Raman Pant via Linux-kernel-mentees wrote: > Hello Dipanjan, > > It would be nice if you could test this patch and tell if it fixes the > issue on v5.10, as you had reported it earlier. > > Please apply the following commits before applying this patch: > db8facfc9faf ("watch_queue, pipe: Free watchqueue state after clearing pipe ring") > 353f7988dd84 ("watchqueue: make sure to serialize 'wqueue->defunct' properly") > > I have tested locally on tag v5.10, using the reproducer available on > syzkaller dashboard. The crash occurred when the patches weren't applied, > and it no longer occurs after applying the three patches. Trying anything on tag v5.10 is not a good test as that kernel is very old and obsolete and over 15000 changes behind what the latest 5.10.y kernel release has in it. So trying it on v5.10.134 would be best. thanks, greg k-h _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees