Received: by 2002:a05:6a10:8a4d:0:0:0:0 with SMTP id dn13csp237411pxb; Thu, 12 Aug 2021 15:19:35 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz0c4hVWgRHkVOM3tBB49L11noWHTaTz/4BrClUOxPWoQp8LrHWKohPFRUTc44/3YeOH8Ed X-Received: by 2002:a05:6402:104a:: with SMTP id e10mr334250edu.188.1628806775657; Thu, 12 Aug 2021 15:19:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1628806775; cv=none; d=google.com; s=arc-20160816; b=s6lwSx4bET/0id4UUrLQqYLqXX4d6othI8Xs3maCV26oDUzbgSEoAjebW7EtXKorjX 8NC90rLtDHPKoXhC7TpAiqGy/ZAFmelYpA9lHHhJE8M8qNkdwZXHhQPH/e6g9idVAcqx A4AGDIHrStuQ9mJ/7vrNNlojBQleisn7JeF+XBTi5254A17kxgu9YGTIh5PBnS+980T8 HFdWnyp1G3pZJU7jiTomrh/xLLx4be7tCvCydPmu3l2zGBqvbQ2x6oXq/FRM1tqCfOF0 mW3ctYuWA8mlZo9k1Smqv9YnaFny46k8fpJg7ADKJfUTm13doC24wMXI1dk0hUfYqKrX T6Og== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:in-reply-to:date :mime-version; bh=sBYzu++XtTyiMNxgm0IaBQVBwqzw9O6kfSOlaQ8ZUzI=; b=RUcdBKsKV3XgbuQP+33D+wMfJON0OkPJpFqygAvC8MkpQeWZmNR7mkJJcaj6WCzIYT CdEF4P3vjBDgdQv8IPPfR3kUMnM2pCsUsdAKtKtG9AX9RmFglOTDZ1oxEepG7+K6Pc/C 5drUdlupMpnfW7R53/qGupnQdQ9voSBuclxEaMcUO4WE1v3X1TBcwTHUDa9CUIN00C4/ kRPgU9xrTv2+HadlHa08Ikls2i2EjaR/7enflcWEOPOjw6lNDuxi1ii20L7ZEVVkPngl 6wMdYnV3fAWsCBqflH3bsbCK4qN5Czlcjmg/7dJCs8TO1Haty+S0YFL+8PIvshb40z2U V8aw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id u14si3717830ejy.78.2021.08.12.15.19.11; Thu, 12 Aug 2021 15:19:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229724AbhHLUge (ORCPT + 99 others); Thu, 12 Aug 2021 16:36:34 -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 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.