From: Pavel Machek <pavel@ucw.cz>
To: kernel list <linux-kernel@vger.kernel.org>,
arjan@infradead.org, mingo@elte.hu, tglx@linutronix.de
Subject: 4.10 kernel on thinkpad x220: rodata_test: test data was not read only
Date: Tue, 21 Feb 2017 23:14:25 +0100 [thread overview]
Message-ID: <20170221221425.GB6918@amd> (raw)
[-- Attachment #1: Type: text/plain, Size: 997 bytes --]
Hi!
I'm getting
[ 3.822386] VFS: Mounted root (ext4 filesystem) readonly on device
8:4.
[ 3.840420] devtmpfs: mounted
[ 3.842346] Freeing unused kernel memory: 536K
[ 3.844081] Write protecting the kernel text: 11764k
[ 3.845753] Write protecting the kernel read-only data: 4780k
[ 3.847326] rodata_test: test data was not read only
[ 3.848906] NX-protecting the kernel data: 6668k
[ 3.850662] x86/mm: Checked W+X mappings: passed, no W+X pages
found.
I guess that means that kernel hardening does not work as
expected... 32bit kernel on thinkpad x220.
Git blame points to
commit edeed30589f5defe63ce6aaae56f2b7c855e4520
Author: Arjan van de Ven <arjan@infradead.org>
Date: Wed Jan 30 13:34:08 2008 +0100
x86: add testcases for RODATA and NX protections/attributes
Any ideas?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
next reply other threads:[~2017-02-21 22:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-21 22:14 Pavel Machek [this message]
[not found] ` <CADyApD3UMZaSwBSDVvx1=NLfE14r-zspty=9EDJ7YXs8Oejz8Q@mail.gmail.com>
2017-02-23 22:16 ` 4.10 kernel on thinkpad x220: rodata_test: test data was not read only Pavel Machek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170221221425.GB6918@amd \
--to=pavel@ucw.cz \
--cc=arjan@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox