From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: * X-Spam-Status: No, score=1.3 required=5.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_SOFTFAIL,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66936C433EF for ; Wed, 23 Mar 2022 05:00:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241717AbiCWFBk (ORCPT ); Wed, 23 Mar 2022 01:01:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232089AbiCWFBi (ORCPT ); Wed, 23 Mar 2022 01:01:38 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5154370CC1 for ; Tue, 22 Mar 2022 22:00:09 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id q6-20020a056e0215c600b002c2c4091914so245327ilu.14 for ; Tue, 22 Mar 2022 22:00:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=6oYDZPp0LBPJzY6rTyL8BNLjnvNtQMaWxnBgcKEox94=; b=Kc0yHAUQXgP5TKHqqW126OxtI2SG5ROgKbul9Dxhh0q6B6/glMDeKctgyEm7/8L9/S L592WbgF0YSz0unv26i2wlz/ttRrLiduN8epZKcbq4cikbNOEKNBIDrEknoAiRVbcCLL 90ct4KDKIfjCdsS98szBoxZT9OkujKA75GlVCA2ZN+87i4FC/NBbCnQZeHzBSAgzOsEB sjXbI6ta/kw5h3RMk0ahxXr2C3Mcfox51fKh0Oby0+0BSr1MAXA24pJdMuO0JoJthVc8 OjYco2/oQuSyAbaAuE+aVJAiyr3U5LXCyHuDRpuJrxuaB6TP11tJXl217khs+sG9r+a1 uMQQ== X-Gm-Message-State: AOAM532CSvSp8nGn5uJndB4z6Hh8kJKLxSBrlYMaJNPRB1Sw9lYobabB C2uUI4rGwaxPro0q3O0pdnDr4CZsNNgVl/KJWauMRskwMKSz X-Google-Smtp-Source: ABdhPJywpzb3LdIQOh5rVskDVLgV8tk+mcgnOSyT+AEYgYLttX0csyUGHT+zmnwungj8w2LzV7rYZny3xppw34szwOommpo4bzx2 MIME-Version: 1.0 X-Received: by 2002:a05:6638:3052:b0:317:79e1:8b7f with SMTP id u18-20020a056638305200b0031779e18b7fmr15107849jak.239.1648011608670; Tue, 22 Mar 2022 22:00:08 -0700 (PDT) Date: Tue, 22 Mar 2022 22:00:08 -0700 In-Reply-To: <64edb9d0-859d-c230-edc6-fba0f8a46b98@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000085454a05dadb9acd@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in io_poll_remove_entries From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+cd301bb6523ea8cc8ca2@syzkaller.appspotmail.com Tested on: commit: 7d58de1a io_uring: don't recycle provided buffer if pu.. git tree: git://git.kernel.dk/linux-block for-5.18/io_uring kernel config: https://syzkaller.appspot.com/x/.config?x=198493467201ec16 dashboard link: https://syzkaller.appspot.com/bug?extid=cd301bb6523ea8cc8ca2 compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.