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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 C891DC2D0A8 for ; Wed, 23 Sep 2020 09:18:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8340821D91 for ; Wed, 23 Sep 2020 09:18:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726342AbgIWJSW (ORCPT ); Wed, 23 Sep 2020 05:18:22 -0400 Received: from mail-il1-f205.google.com ([209.85.166.205]:32967 "EHLO mail-il1-f205.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726244AbgIWJSW (ORCPT ); Wed, 23 Sep 2020 05:18:22 -0400 Received: by mail-il1-f205.google.com with SMTP id e73so15513245ill.0 for ; Wed, 23 Sep 2020 02:18:21 -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=sWT4N2AkvXMYpr6TVMXLRO9RkoC839KMfK+hPqwmouo=; b=mNQKmXAKyGKrmlkRpX3AvJJ0KOwWD7cL0N51s+PXuEuuq0hSpIySUpEhRDZ1xAMhxM lxMn4lBljtws2hGa4bk8EUMx6sRxYuKdIee4iJKRWDaV0CTQNVKXCoYCdJWPypgthbvB 0mGMDTt2N2Ta7Gnml0BIV095xA9WCe1J+QJ9mhfTz+8hGaXbVqBX5HDA2DRTtem+KQ5h YTzUSpDi4lVFbKs2qAEsSpfE1NHfjkSB57VbYG0htYYwSKCoKRlt6MB7UwJzLHC3+3rQ Y5T0eTzbVE/wSRp0lUhZn9AisIuBe622DPychvY4s2KEfglohTdiBWlZCxI+ZrV37NSl Ew9A== X-Gm-Message-State: AOAM531CvKBdYUnmHw1eGcnZs3RY9WjwmS0HWmrngOt2vKlhaqRazesG SYwrzvCnSgg/c5OPMmnGybR5TivJ8otbYRAtj50qPXULNhy6 X-Google-Smtp-Source: ABdhPJxanpgaG5spNSLXqN2KvyWJho17litUGHrn5dmQszvKi9ZZ6ER5umXe7QQXYesLMqXhkZLR0Np0qcgFxvGV/8Ofxe5JcT7i MIME-Version: 1.0 X-Received: by 2002:a5d:9615:: with SMTP id w21mr6675966iol.59.1600852701114; Wed, 23 Sep 2020 02:18:21 -0700 (PDT) Date: Wed, 23 Sep 2020 02:18:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000096760d05aff79022@google.com> Subject: invalid opcode in map_vdso From: syzbot To: bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 92ab97ad Merge tag 'sh-for-5.9-part2' of git://git.libc.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1553eff1900000 kernel config: https://syzkaller.appspot.com/x/.config?x=cd992d74d6c7e62 dashboard link: https://syzkaller.appspot.com/bug?extid=9cf5373b0e15476f39a2 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9cf5373b0e15476f39a2@syzkaller.appspotmail.com invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 16405 Comm: modprobe Not tainted 5.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:map_vdso+0x1e3/0x270 arch/x86/entry/vdso/vma.c:308 Code: 16 48 89 ef 48 8b 34 24 31 c9 e8 88 7c a7 00 eb 7a 4c 8b 74 24 28 43 80 3c 3e 00 48 8b 5c 24 08 74 08 4c 89 ef e8 4d 77 70 70 <07> 20 05 00 00 49 03 6d 00 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 RSP: 0018:ffffc90006167b98 EFLAGS: 00010246 RAX: ffff8880a7db8420 RBX: ffff88809d5fd7f8 RCX: ffff8880a811a040 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88809d5fd740 R08: ffffffff81912471 R09: fffffbfff131e57c R10: fffffbfff131e57c R11: 0000000000000000 R12: 00007ffea1107000 R13: ffff8880a811a468 R14: 1ffff1101502348d R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f33d09f8fc0 CR3: 0000000097210000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: load_elf_binary+0x2e90/0x48a0 fs/binfmt_elf.c:1221 search_binary_handler fs/exec.c:1819 [inline] exec_binprm fs/exec.c:1860 [inline] bprm_execve+0x919/0x1500 fs/exec.c:1931 kernel_execve+0x871/0x970 fs/exec.c:2080 call_usermodehelper_exec_async+0x204/0x330 kernel/umh.c:101 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 8d12c4aa58699b40 ]--- RIP: 0010:map_vdso+0x1e3/0x270 arch/x86/entry/vdso/vma.c:308 Code: 16 48 89 ef 48 8b 34 24 31 c9 e8 88 7c a7 00 eb 7a 4c 8b 74 24 28 43 80 3c 3e 00 48 8b 5c 24 08 74 08 4c 89 ef e8 4d 77 70 70 <07> 20 05 00 00 49 03 6d 00 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 RSP: 0018:ffffc90006167b98 EFLAGS: 00010246 RAX: ffff8880a7db8420 RBX: ffff88809d5fd7f8 RCX: ffff8880a811a040 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88809d5fd740 R08: ffffffff81912471 R09: fffffbfff131e57c R10: fffffbfff131e57c R11: 0000000000000000 R12: 00007ffea1107000 R13: ffff8880a811a468 R14: 1ffff1101502348d R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f33d09f8fc0 CR3: 0000000097210000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.