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 393FEC25B07 for ; Wed, 10 Aug 2022 02:41:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229956AbiHJClL (ORCPT ); Tue, 9 Aug 2022 22:41:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230194AbiHJClF (ORCPT ); Tue, 9 Aug 2022 22:41:05 -0400 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B53AA2DCF for ; Tue, 9 Aug 2022 19:41:03 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id f65so13091064pgc.12 for ; Tue, 09 Aug 2022 19:41:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc; bh=j82v1An9Y3qtBDNPcX53vPR1d/6XIUFLxPcUa40OMz4=; b=KW5PA3GqrgkrCPYHhYn+9pArVF9MbYvRykSDm7WBWwHlPFFdaq8yrY+qlo3WK+RsRJ 4Ci0xGKZacsW9FVQC+8e7GXISqAQgw3Y8hIOxUoCuOghxkgqilBYnrtuo1XJOPf1tJKw xl8ZstXN4qeMHR4x4CuMlg+9Lz/XKAKpbUT1VGLYOEdr5KCNVaPvQavr6b5cV1wkE/fR 5GBJEuE1+i929vuQ9WdQZXZZstubdm+68LI+SlFE6RBKrVkP7C17+SbKKRZ/e7Z/egaE 915sh+pChzbK7d5+4xPDOM+jdKOuuvrjFhTPrK++AxhRAHiHq0W+EQXNXLuFLWtEeXci /VLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc; bh=j82v1An9Y3qtBDNPcX53vPR1d/6XIUFLxPcUa40OMz4=; b=H2gRnY6ndHzjPtduEhyBJ3uyFp73FR9/qhE5PdLOhdiuTvVYYILDlAYdtOl5gzz0wb +1/L69eLqF1sUarack2IHNQgyANmZivOMxLM1oAP5L39EbzAtZCnqy6B9KxKV7hcpRCv SckQ6mIyK0e8N3v9h8ZBOvhoMAffaSanTIBY5+Hyz9K3ULvvhqo7iBvFCVh/SLfw/1xw iISys0azV021AnW3VDfU4MjbZNMp/mOaEbTdQmsmRm7gUmS9cV6FUHtPx0/W1e5aVN03 FKFqGphE+JIMSr2vOlqTU6n1hISMBhWPKDdt3oXbVq6x3BVBo1bUkgIWi5pdQrpxlYQ1 TlYQ== X-Gm-Message-State: ACgBeo1wCc1TieiOICRxYtdgMfGnIPih6u9/HOoD8JPS4zmx5RHWS3JE 95q4Pc7NE/VlmxbiNVkKnAo4Y62s/VPgOQ== X-Google-Smtp-Source: AA6agR6piFyoFiMPTw+wZofRf5fNgpJg0YhPFB8AQZp8bauhOBrrhiCxMAr6fzhey6VRE9Sy/BAOeg== X-Received: by 2002:a63:d750:0:b0:41b:3eec:f9d0 with SMTP id w16-20020a63d750000000b0041b3eecf9d0mr21269662pgi.289.1660099262876; Tue, 09 Aug 2022 19:41:02 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id fu6-20020a17090ad18600b001f1ea1152aasm298869pjb.57.2022.08.09.19.41.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 Aug 2022 19:41:02 -0700 (PDT) Message-ID: <8c5037ee-135d-a338-4e0a-ac4a385ed1dc@kernel.dk> Date: Tue, 9 Aug 2022 20:41:01 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [syzbot] KASAN: use-after-free Read in __io_remove_buffers Content-Language: en-US To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000008909d405e5d970b8@google.com> From: Jens Axboe In-Reply-To: <0000000000008909d405e5d970b8@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org #syz fix: io_uring: fix free of unallocated buffer list -- Jens Axboe