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=-13.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,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 03051C4338F for ; Thu, 12 Aug 2021 20:36:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D71736109F for ; Thu, 12 Aug 2021 20:36:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237366AbhHLUgf (ORCPT ); Thu, 12 Aug 2021 16:36:35 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:52004 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229607AbhHLUge (ORCPT ); Thu, 12 Aug 2021 16:36:34 -0400 Received: by mail-il1-f197.google.com with SMTP id g9-20020a92cda90000b029020cc3319a86so3811703ild.18 for ; Thu, 12 Aug 2021 13:36:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=sBYzu++XtTyiMNxgm0IaBQVBwqzw9O6kfSOlaQ8ZUzI=; b=ZV2fZw/kZuK5tmV0TLy2lq0joqKBuuE/OkEtKBqPl+z1CqWQBEgxQ3pIQi2bwH/IoG Ttq4joGNpVjjS8uCRQwWhsHO6Nt7bqCY38JWvlpSbLLrsYh8gaQzTL3KsYukEEV1/3eY rsonSxfDN6m3Eh70Ws+s55sXwOj3upQV+ccb3dbjjPYK/vJQE+STyw7x+Hhc63qOCH8j m0k6UJSOxX5OzbPxlhIgWdK23s7mdiJWR0Mkje8Ecn9CUOk2PvwLdJ/stJhiRooGbA5J n46FGpFmnkNbz76HPzMRS99GkoaNaahZNAOqEU1eJGKHtH0l3/oKrUTLN9y3EurufE1F oCPQ== X-Gm-Message-State: AOAM530OM5yYPp0Wjpom5oPQhWoh+Z6R3uH//QhUVlMpQZI0YFBdJqbp iK2BP7c8Tqg7JOuwXuRgMqcgsWDTA1UzoNlCXJaSha2J2hUG X-Google-Smtp-Source: ABdhPJw3XIRV+yx+RFhY33oFm2MfAtk/nwcxE0vdHJIYzGW+3k2IatJ4phFZ9UIf7JXcgVp/MEmL09rGjcQb9UcVNC5Ho6FryfrD MIME-Version: 1.0 X-Received: by 2002:a6b:ba02:: with SMTP id k2mr4427251iof.164.1628800568256; Thu, 12 Aug 2021 13:36:08 -0700 (PDT) Date: Thu, 12 Aug 2021 13:36:08 -0700 In-Reply-To: <6f7d4c1d-f923-3ab1-c525-45316b973c72@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000047f3b805c962affb@google.com> Subject: Re: [syzbot] KASAN: stack-out-of-bounds Read in iov_iter_revert 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: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+9671693590ef5aad8953@syzkaller.appspotmail.com Tested on: commit: bff2c168 io_uring: don't retry with truncated iter git tree: https://github.com/isilence/linux.git truncate kernel config: https://syzkaller.appspot.com/x/.config?x=730106bfb5bf8ace dashboard link: https://syzkaller.appspot.com/bug?extid=9671693590ef5aad8953 compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.1 Note: testing is done by a robot and is best-effort only.