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 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 7D4D9C4338F for ; Mon, 23 Aug 2021 00:44:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5971C6135A for ; Mon, 23 Aug 2021 00:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232530AbhHWAot (ORCPT ); Sun, 22 Aug 2021 20:44:49 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:37597 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230238AbhHWAop (ORCPT ); Sun, 22 Aug 2021 20:44:45 -0400 Received: by mail-il1-f199.google.com with SMTP id w12-20020a92ad0c000000b00227fc2e6eaeso732219ilh.4 for ; Sun, 22 Aug 2021 17:44:04 -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=Uwxvn5atNhE0NIH/RYoJlbaLRjbzmMnZlC4pPIKHaCg=; b=a1eEUJ7y2Y8nuVIBxNcMeA4goLAP/haPU+niWVLJKe1ooOzwbJ4C1loA9v2bzC0y2B s4YpfeowdOIPSIcuYIdrRDwAl5pSa4wsU5ILv73QDI4jz3m0IAWrmEILAFZbTEPoRKVO OdTNTEZI4IqTq2Pf+PGXAxDk6DcsfDN8xoTX1GmCPY+lGbTv5rI0QhJ+/xaoybplfU/m YIwnCORL6uGSyMRcUov5i/eFhVeeO81FS8WFxBIDXtaw7NX3CLck68C3a6cs5ERlmgkp yVWPPzjdHi0GlZzUFjZBM+fuaekdmP/J5w6R7qSklcl3jYWHCmuuUqBHy9Q+gyJkVPjS kMUg== X-Gm-Message-State: AOAM531iWi8s0dexm9hvXd3kaiMUTAng5hqv/y3txXduu1bdLQaonmTS RCkeRCx3sPsJscaqI4xIcLXkca+RoyjvSPkoklmJFvtCaALo X-Google-Smtp-Source: ABdhPJzRzRs/Duz0wgM23JTziNfzEd6x9/41lSnGWLMkUw4RlM/yKekx0NVzSt7Y6yEF9dPTYoeP0ODdMtKxgxe5AaTww1CkJUtS MIME-Version: 1.0 X-Received: by 2002:a02:2a88:: with SMTP id w130mr27207095jaw.60.1629679443921; Sun, 22 Aug 2021 17:44:03 -0700 (PDT) Date: Sun, 22 Aug 2021 17:44:03 -0700 In-Reply-To: <6e5f874d-ac61-9556-8d7e-575ec7d9682a@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005a4e8105ca2f509c@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: b917c794 io_uring: fix revert truncated vecs git tree: https://github.com/isilence/linux.git syztest_trunc2 kernel config: https://syzkaller.appspot.com/x/.config?x=4aa932b5eaeee9ef 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.