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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 E6BAFC4360C for ; Wed, 3 Mar 2021 16:44:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB48B64EE4 for ; Wed, 3 Mar 2021 16:44:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1385010AbhCCQkU (ORCPT ); Wed, 3 Mar 2021 11:40:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358412AbhCCMGT (ORCPT ); Wed, 3 Mar 2021 07:06:19 -0500 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D1B3C0617A9; Wed, 3 Mar 2021 02:43:55 -0800 (PST) Received: by mail-wm1-x333.google.com with SMTP id o16so5842965wmh.0; Wed, 03 Mar 2021 02:43:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=PgwT9droUAx+uKTWrWPCHSLR4SLfHYSyusjr/F/kZq4=; b=q6RC5n3oKhbYY1sx6cKN0UGvK6qCSa5W+zBFufHpKisu8L3kmH0xDUY4oZPor/Z8kc R2B7HxEY+0zg1DP/dBUvDgvOscTPCXUiXNH9EFSkwY78zu5oouCdszqFjjqU7OlL68IJ Nlzq63WJTrnNL7R14c57Li4cD+fCjN6QpT18e7o/wGnLxC14YRwnzDywwlnR72urmlfv DjkQ7YEP/c2EZRAlxWLrDQUI+iOC7ZAM9ImYVwZkyAmo8tDuazWsg6547K65JKoc/TP7 E/WK46SRW+RQdCSZngJ3BSXsEliG8m8jJLZybFgLYH2Rd980ff3SW3DCjsbvvVxiiA7+ pCqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=PgwT9droUAx+uKTWrWPCHSLR4SLfHYSyusjr/F/kZq4=; b=N21yyydXEl8kQhxQKSzMNh/0MOS72UXZgS+U6P/mOUU4Ku7yKZ61p0LwYAhT4myBQ2 rrBXR//B6FMsXtlFfzuAJZI4st/qGqm9EAyDQfxgi7fP5iGHn8/6fKlTDO0MfzgOtaHE w/IRUexEuZgBdeHEkeiTrduFH0CEUHU4+kAQRnDCiGAg/UGqBVf9gaEGz/1fh0b3gpNx 4A5irRzV1O3bPDFt3UHTs7CNS+Tc1UCSo+UAlANJz79hXcG7AVmy1rtRjmzgnmr8Ak6e flwlVPJPP6oaxCDMt+0Wnw1jUaV33t/XN9sp64qbVPhjvivHNILcMStLpR/9P2mh7syG Aqfw== X-Gm-Message-State: AOAM530X10pvShLxT7QrpxZ9uaWTGYkOj4DcufdJhel72RvE4Bo2jVOo LjMo60Hbt8rcjybmVbL/jzfjavXm7P1R0Dlh X-Google-Smtp-Source: ABdhPJxM9Lby412bEqIBX7NezdIFCNwizwket4RtkZB6yfemGIq2z2wzCqkaK9sOF4fyJV6qVNs/TA== X-Received: by 2002:a7b:c755:: with SMTP id w21mr8728296wmk.89.1614768234396; Wed, 03 Mar 2021 02:43:54 -0800 (PST) Received: from localhost.localdomain (bzq-79-179-86-219.red.bezeqint.net. [79.179.86.219]) by smtp.googlemail.com with ESMTPSA id u137sm5504454wmu.20.2021.03.03.02.43.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Mar 2021 02:43:54 -0800 (PST) From: Lior Ribak To: akpm@linux-foundation.org Cc: deller@gmx.de, viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Lior Ribak Subject: Re: [PATCH v2] binfmt_misc: Fix possible deadlock in bm_register_write Date: Wed, 3 Mar 2021 02:43:30 -0800 Message-Id: <20210303104330.100557-1-liorribak@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210302164119.406098356cdea37b999b0b0a@linux-foundation.org> References: <20210302164119.406098356cdea37b999b0b0a@linux-foundation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Looks good to me. > > I assume this is an ancient bug and that a backport to -stable trees > (with a cc:stable) is warranted? Yep, it exists since the "persistent opened binary handler" commit 948b701a607f123df92ed29084413e5dd8cda2ed was introduced in version 4.8, and yes i think the patch can be backported to the stable trees