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From: mjg59@google.com (Matthew Garrett)
To: linux-security-module@vger.kernel.org
Subject: [GIT PULL] Kernel lockdown for secure boot
Date: Thu, 05 Apr 2018 00:20:36 +0000	[thread overview]
Message-ID: <CACdnJut330=gdaSOR8VdLJeNEiL7uupUMZYqVYy5YoE1J-w2vQ@mail.gmail.com> (raw)
In-Reply-To: <CANA3KFWLCfe=KYPBhKj+g698=frt4E-u-Hq2--5jFkHnkNoBnA@mail.gmail.com>

On Wed, Apr 4, 2018 at 5:05 PM Peter Dolding <oiaohm@gmail.com> wrote:

> > If you don't have secure boot then an attacker with root can modify your
> > bootloader or kernel, and on next boot lockdown can be silently
disabled.

> Stop being narrow minded you don't need secure boot to protect
> bootloader or kernel the classic is only boot from read only media.

And if you use another protected path you can set the appropriate bootparam
flag or pass the appropriate kernel command line argument and gain the same
functionality.
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  reply	other threads:[~2018-04-05  0:20 UTC|newest]

Thread overview: 121+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-30 23:29 [GIT PULL] Kernel lockdown for secure boot David Howells
2018-03-31  0:46 ` James Morris
2018-04-03  0:37   ` Andy Lutomirski
2018-04-03  0:59     ` Kees Cook
2018-04-03  1:47       ` Andy Lutomirski
2018-04-03  7:06   ` David Howells
2018-04-03 15:11     ` Andy Lutomirski
2018-04-03 15:41       ` Alexei Starovoitov
2018-04-03 16:26         ` Andy Lutomirski
2018-04-03 16:29       ` Matthew Garrett
2018-04-03 16:45         ` Andy Lutomirski
2018-04-03 18:45           ` Kees Cook
2018-04-03 19:01             ` Andy Lutomirski
2018-04-03 19:07               ` Kees Cook
2018-04-03 19:29           ` Matthew Garrett
2018-04-03 21:51             ` Andy Lutomirski
2018-04-04 18:42               ` Peter Jones
2018-04-04 20:01                 ` Thomas Gleixner
2018-04-04 20:18                   ` Matthew Garrett
2018-04-05 18:47                 ` Andy Lutomirski
2018-04-06  4:42                 ` Peter Dolding
2018-04-03 17:16         ` David Howells
2018-04-03 19:01           ` Andy Lutomirski
2018-04-03 19:49           ` David Howells
2018-04-03 21:58             ` Andy Lutomirski
2018-04-03 22:32             ` David Howells
2018-04-03 22:39               ` Andy Lutomirski
2018-04-03 22:46                 ` Linus Torvalds
2018-04-03 22:51                   ` Matthew Garrett
2018-04-03 22:53                     ` Andy Lutomirski
2018-04-03 23:09                       ` Matthew Garrett
2018-04-03 23:08                     ` Linus Torvalds
2018-04-03 23:10                       ` Linus Torvalds
2018-04-03 23:17                       ` Matthew Garrett
2018-04-03 23:26                         ` Linus Torvalds
2018-04-03 23:39                           ` Linus Torvalds
2018-04-03 23:47                             ` Matthew Garrett
2018-04-04  0:02                               ` Linus Torvalds
2018-04-04  0:04                                 ` Matthew Garrett
2018-04-04  0:08                                   ` Linus Torvalds
2018-04-04  0:12                                     ` Matthew Garrett
2018-04-05 14:58                                       ` Alan Cox
2018-04-04  0:22                                   ` David Howells
2018-04-05 17:59                                   ` Alan Cox
2018-04-05 18:03                                     ` Matthew Garrett
2018-04-03 23:45                           ` Matthew Garrett
2018-04-03 23:55                             ` Linus Torvalds
2018-04-03 23:59                               ` Matthew Garrett
2018-04-04  0:06                                 ` Linus Torvalds
2018-04-04  0:10                                   ` Matthew Garrett
2018-04-04  0:15                                     ` Linus Torvalds
2018-04-04  0:16                                       ` Matthew Garrett
2018-04-04  0:18                                         ` Andy Lutomirski
2018-04-04  0:19                                           ` Matthew Garrett
2018-04-04  9:04                                             ` Greg Kroah-Hartman
2018-04-04  0:25                                         ` Linus Torvalds
2018-04-04  0:33                                           ` Linus Torvalds
2018-04-04  0:46                                             ` Matthew Garrett
2018-04-04  0:56                                               ` Linus Torvalds
2018-04-04  1:13                                                 ` Matthew Garrett
2018-04-04  1:43                                                   ` Linus Torvalds
2018-04-04  4:30                                                     ` Matthew Garrett
2018-04-04 12:57                                                       ` Theodore Y. Ts'o
2018-04-04 13:02                                                         ` Greg Kroah-Hartman
2018-04-04 13:34                                                           ` Theodore Y. Ts'o
2018-04-04 13:57                                                             ` Greg Kroah-Hartman
2018-04-04 13:29                                                         ` Mike Galbraith
2018-04-04 16:20                                                         ` Matthew Garrett
2018-04-04 13:33                                                       ` David Howells
2018-04-04 13:52                                                         ` Theodore Y. Ts'o
2018-04-04 16:22                                                           ` Matthew Garrett
2018-04-04 16:39                                                             ` Andy Lutomirski
2018-04-04 16:42                                                               ` Matthew Garrett
2018-04-04 16:46                                                               ` Justin Forbes
2018-04-05  0:05                                                             ` Peter Dolding
2018-04-05  0:20                                                               ` Matthew Garrett [this message]
2018-04-04 13:57                                                         ` David Howells
2018-04-04 16:09                                                       ` Linus Torvalds
2018-04-04 16:17                                                         ` Matthew Garrett
2018-04-04  6:56                                                   ` Peter Dolding
2018-04-04 16:26                                                     ` Matthew Garrett
2018-04-05  1:28                                                       ` Peter Dolding
2018-04-04  1:36                                                 ` Justin Forbes
     [not found]                                                 ` <CAFbkSA0ursG3RGWU19LQiD6u30h5V=Aqj3oVyHQCiX6MLopYUg@mail.gmail.com>
2018-04-04  1:58                                                   ` Linus Torvalds
2018-04-04  0:17                                   ` Jann Horn
2018-04-04  0:23                                     ` Andy Lutomirski
2018-04-04  8:05                                     ` David Howells
2018-04-04 14:35                                       ` Andy Lutomirski
2018-04-04 14:44                                       ` David Howells
2018-04-04 15:43                                       ` Eric W. Biederman
2018-04-03 23:56                         ` David Howells
2018-04-03 23:58                           ` Linus Torvalds
2018-04-03 23:39                 ` David Howells
2018-04-03 23:48                   ` Andy Lutomirski
2018-04-03 23:12               ` David Howells
2018-04-03 23:27                 ` Linus Torvalds
2018-04-03 23:42                 ` Andy Lutomirski
2018-04-03 20:53         ` Linus Torvalds
2018-04-03 20:54           ` Matthew Garrett
2018-04-03 21:01             ` Linus Torvalds
2018-04-03 21:08               ` Matthew Garrett
2018-04-03 21:21                 ` Al Viro
2018-04-03 21:37                   ` Matthew Garrett
2018-04-03 21:26                 ` Linus Torvalds
2018-04-03 21:32                   ` Matthew Garrett
2018-03-31 10:20 ` David Howells
2018-04-03 13:25   ` Ard Biesheuvel
2018-04-03 21:48     ` James Morris
2018-04-05 17:53     ` Alan Cox
2018-11-21 12:05 ` [PATCH next-lockdown 0/1] debugfs EPERM fix for 'Kernel lockdown for secure boot' patch series Vasily Gorbik
2018-11-21 12:05   ` [PATCH next-lockdown 1/1] debugfs: avoid EPERM when no open file operation defined Vasily Gorbik
  -- strict thread matches above, loose matches on Subject: below --
2018-04-04  2:34 [GIT PULL] Kernel lockdown for secure boot Alexei Starovoitov
2018-04-04  4:31 ` Matthew Garrett
2018-04-08  7:44   ` joeyli
2018-04-08  8:07 ` joeyli
2018-04-09  3:40   ` Alexei Starovoitov
2018-04-09  8:14     ` Daniel Borkmann
2018-04-09 13:55     ` joeyli
2017-10-26 16:37 David Howells
2017-10-26 18:22 ` Mimi Zohar
2017-10-26 19:20 ` James Morris

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