From: salyzyn@android.com (Mark Salyzyn)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/3] arm64: Add CONFIG_KUSER_HELPERS
Date: Mon, 11 Sep 2017 08:26:27 -0700 [thread overview]
Message-ID: <20170911152635.95367-1-salyzyn@android.com> (raw)
Make it possible to disable the kuser helpers by adding a KUSER_HELPERS
config option (enabled by default). When disabled, all kuser
helpers-related code is removed from the kernel and no mapping is done
at the fixed high address (0xffff0000); any attempt to use a kuser
helper from a 32-bit process will result in a segfault.
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
v2:
- vectors_page and compat_vdso_spec as array of 2
- free sigpage if vectors allocation failed
- adjust makefile so one line for each of the assembler source modules
- split off assembler changes to a new previous patch in series to reduce churn
- modify slightly the feature documentation to reduce its reach
- modify slightly the feature documentation to rationalize the yes default.
- There are more ifdefs as a result of the rebase.
v3:
- rebase (minor conflicts)
WARNING: multiple messages have this Message-ID (diff)
From: Mark Salyzyn <salyzyn@android.com>
To: linux-kernel@vger.kernel.org
Cc: kevin.brodsky@arm.com, catalin.marinas@arm.com,
will.deacon@arm.com, mingo@kernel.org, borntraeger@de.ibm.com,
james.morse@arm.com, peterz@infradead.org, Dave.Martin@arm.com,
credmonster@gmail.com, zijun_hu@htc.com, mark.rutland@arm.com,
jszhang@marvell.com, labbott@redhat.com, john.stultz@linaro.org,
keescook@chromium.org, linux-arm-kernel@lists.infradead.org,
takahiro.akashi@linaro.org, mmarek@suse.com,
ard.biesheuvel@linaro.org, Mark Salyzyn <salyzyn@android.com>
Subject: [PATCH v3 0/3] arm64: Add CONFIG_KUSER_HELPERS
Date: Mon, 11 Sep 2017 08:26:27 -0700 [thread overview]
Message-ID: <20170911152635.95367-1-salyzyn@android.com> (raw)
Make it possible to disable the kuser helpers by adding a KUSER_HELPERS
config option (enabled by default). When disabled, all kuser
helpers-related code is removed from the kernel and no mapping is done
at the fixed high address (0xffff0000); any attempt to use a kuser
helper from a 32-bit process will result in a segfault.
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
v2:
- vectors_page and compat_vdso_spec as array of 2
- free sigpage if vectors allocation failed
- adjust makefile so one line for each of the assembler source modules
- split off assembler changes to a new previous patch in series to reduce churn
- modify slightly the feature documentation to reduce its reach
- modify slightly the feature documentation to rationalize the yes default.
- There are more ifdefs as a result of the rebase.
v3:
- rebase (minor conflicts)
next reply other threads:[~2017-09-11 15:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-11 15:26 Mark Salyzyn [this message]
2017-09-11 15:26 ` [PATCH v3 0/3] arm64: Add CONFIG_KUSER_HELPERS Mark Salyzyn
2017-09-19 22:02 ` Kees Cook
2017-09-19 22:02 ` Kees Cook
2017-09-20 9:15 ` Will Deacon
2017-09-20 9:15 ` Will Deacon
2017-10-31 18:42 ` Mark Salyzyn
2017-10-31 18:42 ` Mark Salyzyn
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=20170911152635.95367-1-salyzyn@android.com \
--to=salyzyn@android.com \
--cc=linux-arm-kernel@lists.infradead.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.