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 8B764C31E5B for ; Wed, 19 Jun 2019 15:57:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BA952187F for ; Wed, 19 Jun 2019 15:57:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729874AbfFSP5K (ORCPT ); Wed, 19 Jun 2019 11:57:10 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:54810 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726518AbfFSP5J (ORCPT ); Wed, 19 Jun 2019 11:57:09 -0400 Received: by mail-io1-f72.google.com with SMTP id n8so21761905ioo.21 for ; Wed, 19 Jun 2019 08:57:09 -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=MGvBmLiBNh+C4+wwdFS/TTKkg1E7EQ8Skztj3YqExG8=; b=V+FspX4fAOFVjwvHEWyGrJydsI52csau6GqFnBSCzbw1ByArUJTE8AYeOaeIKCWS0m e8dxuedAHPGJt1i9X3XyxuFrThJOWPVQe6SYKDVAFWafdJXNb0kTWoc+QyNK3Srci24V jzC9hcXRrFmEXSj8+84yDnLZewoJRnKixtYy/o0JN26beb/i1wK+CwCutNVlznWjcRW7 4CcFpKZ3JZpxxkjMhIJnVhddbVdbZr2kXlPncYUYqw2JBEN11iCr4CUo0lTo9VRZURuJ xT6UM+IqH92DTJR3OiqqJwoN0LYP5JoZJvdDAYUA0iYimnUZtJOKHk7hdLvV0TkHyVVB w2kQ== X-Gm-Message-State: APjAAAW+fWCtTqpCxNi55qIpFhLJmRubYIwRtcwD2/K7vaLx8inJ3Lzx ecYS6W7Nt0KzB9nY9W2zhLxoQCKPd43Y1pdwPrQamRXMo9g8 X-Google-Smtp-Source: APXvYqwy3jlTWkzep4C7eEUdiRgCjyCM7AL+gOyGCmyWMyoS6tuYdLGT59ANozFBE0rq+3jURdPRilgwQILtYs8AX77T3ZXpMepY MIME-Version: 1.0 X-Received: by 2002:a05:6638:cf:: with SMTP id w15mr2319925jao.136.1560959828884; Wed, 19 Jun 2019 08:57:08 -0700 (PDT) Date: Wed, 19 Jun 2019 08:57:08 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001c03bf058baf488a@google.com> Subject: BUG: unable to handle kernel paging request in hrtimer_interrupt From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes 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: 29f785ff Merge branch 'fixes' of git://git.kernel.org/pub/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10539ceaa00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e5c77f8090a3b96b dashboard link: https://syzkaller.appspot.com/bug?extid=037e18398ba8c655a652 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16da8cc9a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+037e18398ba8c655a652@syzkaller.appspotmail.com kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address: ffff88807a92fb10 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0011) - permissions violation PGD b401067 P4D b401067 PUD 80000000400001e3 Thread overran stack, or stack corrupted Oops: 0011 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9205 Comm: syz-executor.0 Not tainted 5.2.0-rc5+ #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:0xffff88807a92fb10 Code: ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff ff ff 40 8c f0 89 80 88 ff ff 00 00 00 00 00 00 00 00 a0 a9 1d 8b ff ff ff ff <40> fb 92 7a 80 88 ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff RSP: 0018:ffff8880ae909e10 EFLAGS: 00010006 RAX: ffff88807a92fb10 RBX: 0000000000000000 RCX: ffffffff816162e2 RDX: 0000000000010000 RSI: ffffffff81615cdf RDI: ffff88807a92fab8 RBP: ffff8880ae909f08 R08: ffff888092914180 R09: ffffed1015d26c70 R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: ffff8880ae926d80 R13: ffffffff8b1da9a0 R14: ffff88807a92fab8 R15: dffffc0000000000 FS: 0000555557401940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88807a92fb10 CR3: 000000009016a000 CR4: 00000000001406e0 Call Trace: hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline] smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1066 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 Modules linked in: CR2: ffff88807a92fb10 ---[ end trace f7934f1b1fe3f476 ]--- RIP: 0010:0xffff88807a92fb10 Code: ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff ff ff 40 8c f0 89 80 88 ff ff 00 00 00 00 00 00 00 00 a0 a9 1d 8b ff ff ff ff <40> fb 92 7a 80 88 ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff RSP: 0018:ffff8880ae909e10 EFLAGS: 00010006 RAX: ffff88807a92fb10 RBX: 0000000000000000 RCX: ffffffff816162e2 RDX: 0000000000010000 RSI: ffffffff81615cdf RDI: ffff88807a92fab8 RBP: ffff8880ae909f08 R08: ffff888092914180 R09: ffffed1015d26c70 R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: ffff8880ae926d80 R13: ffffffff8b1da9a0 R14: ffff88807a92fab8 R15: dffffc0000000000 FS: 0000555557401940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88807a92fb10 CR3: 000000009016a000 CR4: 00000000001406e0 --- 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. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches