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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 ABFD7C2BB85 for ; Tue, 14 Apr 2020 18:48:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8EBE52078A for ; Tue, 14 Apr 2020 18:48:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2504385AbgDNSsS (ORCPT ); Tue, 14 Apr 2020 14:48:18 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:36516 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2504372AbgDNSsM (ORCPT ); Tue, 14 Apr 2020 14:48:12 -0400 Received: by mail-io1-f71.google.com with SMTP id p9so523334ioh.3 for ; Tue, 14 Apr 2020 11:48:12 -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:message-id:subject:from:to; bh=blKpKhStMAbwnW14AFefOWzQ8dyB6AcHqCMBWAoqBxo=; b=lczVSruP56O13PIt2Tcr/SfZG62k1SjCDk0YA3aUAe5yNic9vVZKnvAz+SlSDBxIit wTp9RiP+ShtEwnJ8zKYblCncks4ThtNmrPni7rAiokQMr9ezEvvg3xsigHF0SghRBRWd liHfzHwdufSy1twnyD6ma/TsxWj8xAz5iVX6oFCBiLX+VSJKfUHlZmaDkZE8OJhRE8sH oNKMQbMA7z2pjKeRVpAFMMzV3TQ6pLTd8MtxWImlNDAOwOhPZPBfMczkHXDcl9h3qUWt pCnZyAYy3roQM6fSnv2eL2/Y6YMNV5RPni2L3OCdJAeQKBsmZmRp2/BUl0wDpXdCVIFt Q46Q== X-Gm-Message-State: AGi0PuZEexR9P1htLFTFzhn7sjftVEme183obKj29igg27T4VWyDuiB0 Ss74tA4I/WbNt5Im2/9P3aacViXA0WLSiyXgJuQE0wfpGE0a X-Google-Smtp-Source: APiQypJqEqlZyH/jnYwChct6pYjyaF2Qyu5UHI3TEhsudCgq0LFiNYA0FZcNldEKSSTwE7V+x9B5RxvOFP4/qUfwVkF/0G2WkZ4Z MIME-Version: 1.0 X-Received: by 2002:a92:498e:: with SMTP id k14mr1538771ilg.160.1586890091797; Tue, 14 Apr 2020 11:48:11 -0700 (PDT) Date: Tue, 14 Apr 2020 11:48:11 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003823e405a344a481@google.com> Subject: WARNING: stack recursion on stack type 2 From: syzbot To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 1a323ea5 x86: get rid of 'errret' argument to __get_user_x.. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=1688db5de00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c1e98458335a7d1 dashboard link: https://syzkaller.appspot.com/bug?extid=a518ca2ae9f86ff95079 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a518ca2ae9f86ff95079@syzkaller.appspotmail.com WARNING: stack recursion on stack type 2 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.