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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 0F371C2D0EC for ; Tue, 7 Apr 2020 21:08:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C434B2075E for ; Tue, 7 Apr 2020 21:08:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C434B2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5A5328E001D; Tue, 7 Apr 2020 17:08:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 57BD68E0001; Tue, 7 Apr 2020 17:08:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4B8998E001D; Tue, 7 Apr 2020 17:08:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0083.hostedemail.com [216.40.44.83]) by kanga.kvack.org (Postfix) with ESMTP id 34CAA8E0001 for ; Tue, 7 Apr 2020 17:08:06 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id E7059181AEF39 for ; Tue, 7 Apr 2020 21:08:05 +0000 (UTC) X-FDA: 76682296530.24.week80_63c80b042370f X-HE-Tag: week80_63c80b042370f X-Filterd-Recvd-Size: 2758 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by imf30.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Apr 2020 21:08:05 +0000 (UTC) Received: by mail-io1-f71.google.com with SMTP id v13so4263971iox.6 for ; Tue, 07 Apr 2020 14:08:05 -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=WcamevgV8aJ2+1jjTqeYsPnyyqndOfJut4ANxNQo7II=; b=GuFjNaEpFdJtTWf9sl7IugJZEcRzWKnd47b1CfGn8rIM4J3bB+wndgTHViUQBZcEXz ZZ6tK3BgHuDjVfy2+csIiYjMG+R9auiRVnIS8RtV2uZRrVAxUqd6kfm3sBtNaw4n2LKA zCYaEZQLTizaFwuxWhCgpr1Turrktl56gblFcCQBFmCHu0UR5yjZAC/2eQd442PKhOHn 72jg8n78watMj5iKOb1bnBizGW2Gd5lT5r5tsGYA8M1rpfp6jEOmjgRjmbpq2gTv2bsw 9NVFFx2wTZITz5sYAf4lyLIWP3yKeoIRO6kfuR/0qD51oOIJoj4I1ARKskGIVDAWnVe/ H5ew== X-Gm-Message-State: AGi0PuaiSFtAcCF4/EsjJRG/LjnWaeh8/oL/WOTrHx5VhlWsMUhF8dzR fqychLDn75pEZaYfkTOmZwGzYz9OiMU1vd5LXT/vZ31HYRvp X-Google-Smtp-Source: APiQypIJ3E46KuEnE+e2QTkr/FvlYted4kADS5RZaWPImSV2/Q7w4dG+0q4dvns60lBZ6mieeCONw10hVN4u0453OWg03tYi2w0b MIME-Version: 1.0 X-Received: by 2002:a5d:9dc7:: with SMTP id 7mr3984559ioo.109.1586293684848; Tue, 07 Apr 2020 14:08:04 -0700 (PDT) Date: Tue, 07 Apr 2020 14:08:04 -0700 In-Reply-To: <20200407204754.GA66033@xz-x1> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000984d3705a2b9c7ce@google.com> Subject: Re: WARNING: bad unlock balance in __get_user_pages_remote From: syzbot To: akpm@linux-foundation.org, bgeffon@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, peterx@redhat.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+a8c70b7f3579fc0587dc@syzkaller.appspotmail.com Tested on: commit: 763dede1 Merge tag 'for-linus-5.7-rc1' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master kernel config: https://syzkaller.appspot.com/x/.config?x=5b9ca0b4c36cd4da dashboard link: https://syzkaller.appspot.com/bug?extid=a8c70b7f3579fc0587dc compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) patch: https://syzkaller.appspot.com/x/patch.diff?x=122c0e1be00000 Note: testing is done by a robot and is best-effort only.