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=-3.7 required=3.0 tests=BAYES_00,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 4602BC433E2 for ; Sat, 12 Sep 2020 00:49:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 073F320855 for ; Sat, 12 Sep 2020 00:49:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725963AbgILAtX convert rfc822-to-8bit (ORCPT ); Fri, 11 Sep 2020 20:49:23 -0400 Received: from mail-io1-f78.google.com ([209.85.166.78]:54791 "EHLO mail-io1-f78.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725907AbgILAtR (ORCPT ); Fri, 11 Sep 2020 20:49:17 -0400 Received: by mail-io1-f78.google.com with SMTP id o18so7995160ioa.21 for ; Fri, 11 Sep 2020 17:49:16 -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 :content-transfer-encoding; bh=UEAagO8N0YCGrzOE2Py+N/qlEMOU1z8uYtoFqQLaUA4=; b=WJLihHz7dHX0CN0hDJQZP1CiAQRpG1yYDlrST06YZ5QICgrV/IKxWS+oXljNIdTHST TZVBHcH0uC1kQ3na7Hr0NyVX6GWxsN6Tyzo+YEy3ZM42cL/Mh/MbMDMAe1Vp8LO+Lrk5 sEiYP+aIw29bh5ocE1bJn+M1XOxmTPlsAqayDoiNB724Z5eMD6ItboOoWcL5vOsDWkWN HzpA8liRHfP79uQhkbrE9KMg4yjSGAq3PZCheLjgm3InCf8kaYv7+dX8S/joDLSU3wG1 RhmzQ01ky2gw4ltOiMd7tmqX8i7iEkxvvYECJTLj88zUc3BEQzhR5fDLQVFXj6fL5i9K dEuA== X-Gm-Message-State: AOAM533BxJ04k/e9LZJCgdTIlnUJ2u4hCtENI3Fe849/SjdIVHOy50jB wd5Q0aOx55FHIYnWDXmKjzBd0qqNtxqB549nLjnbS6vTKq6U X-Google-Smtp-Source: ABdhPJz3Hdd4xiqtJaDvONlBAEu0euQcOiSlE9hDH19B/rvwiHGRWaa5p7pCHUX65WBu+gj9iaMrk07XO7J1gHICzL9AaR+Zv/yb MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1193:: with SMTP id y19mr3813810ili.252.1599871756474; Fri, 11 Sep 2020 17:49:16 -0700 (PDT) Date: Fri, 11 Sep 2020 17:49:16 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bb202905af132b8f@google.com> Subject: kernel panic: stack is corrupted in get_kernel_gp_address From: syzbot To: alexandre.chartre@oracle.com, bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: f4d51dff Linux 5.9-rc4 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14aa2d3e900000 kernel config: https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9 dashboard link: https://syzkaller.appspot.com/bug?extid=d6459d8f8984c0929e54 compiler: gcc (GCC) 10.1.0-syz 20200507 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164270dd900000 Bisection is inconclusive: the issue happens on the oldest tested release. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13c7d9f9900000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1027d9f9900000 console output: https://syzkaller.appspot.com/x/log.txt?x=17c7d9f9900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d6459d8f8984c0929e54@syzkaller.appspotmail.com ���ACode: Bad RIP value. Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: get_kernel_gp_address+0x1a0/0x1c0 arch/x86/kernel/traps.c:520 Kernel Offset: disabled --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches