From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, akpm@linux-foundation.org,
alex.popov@linux.com, keescook@chromium.org,
linux-kernel@vger.kernel.org, luto@kernel.org, will@kernel.org
Subject: Re: [PATCH v2 13/13] arm64: entry: use stackleak_erase_on_task_stack()
Date: Wed, 4 May 2022 17:42:00 +0100 [thread overview]
Message-ID: <YnKs2E2t+coe2h3w@arm.com> (raw)
In-Reply-To: <20220427173128.2603085-14-mark.rutland@arm.com>
On Wed, Apr 27, 2022 at 06:31:28PM +0100, Mark Rutland wrote:
> On arm64 we always call stackleak_erase() on a task stack, and never
> call it on another stack. We can avoid some redundant work by using
> stackleak_erase_on_task_stack(), telling the stackleak code that it's
> being called on a task stack.
>
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Cc: Alexander Popov <alex.popov@linux.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Andy Lutomirski <luto@kernel.org>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Will Deacon <will@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-05-04 16:43 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 17:31 [PATCH v2 00/13] stackleak: fixes and rework Mark Rutland
2022-04-27 17:31 ` [PATCH v2 01/13] arm64: stackleak: fix current_top_of_stack() Mark Rutland
2022-05-04 16:41 ` Catalin Marinas
2022-05-04 19:01 ` Kees Cook
2022-05-04 19:55 ` Catalin Marinas
2022-05-05 8:25 ` Will Deacon
2022-05-08 17:24 ` Alexander Popov
2022-05-10 11:36 ` Mark Rutland
2022-04-27 17:31 ` [PATCH v2 02/13] stackleak: move skip_erasing() check earlier Mark Rutland
2022-05-08 17:44 ` Alexander Popov
2022-05-10 11:40 ` Mark Rutland
2022-04-27 17:31 ` [PATCH v2 03/13] stackleak: remove redundant check Mark Rutland
2022-05-08 18:17 ` Alexander Popov
2022-05-10 11:46 ` Mark Rutland
2022-05-11 3:00 ` Kees Cook
2022-05-11 8:02 ` Mark Rutland
2022-05-11 14:44 ` Kees Cook
2022-05-12 9:14 ` Mark Rutland
2022-05-15 16:17 ` Alexander Popov
2022-05-24 10:03 ` Mark Rutland
2022-05-26 22:09 ` Alexander Popov
2022-04-27 17:31 ` [PATCH v2 04/13] stackleak: rework stack low bound handling Mark Rutland
2022-04-27 17:31 ` [PATCH v2 05/13] stackleak: clarify variable names Mark Rutland
2022-05-08 20:49 ` Alexander Popov
2022-05-10 13:01 ` Mark Rutland
2022-05-11 3:05 ` Kees Cook
2022-04-27 17:31 ` [PATCH v2 06/13] stackleak: rework stack high bound handling Mark Rutland
2022-05-08 21:27 ` Alexander Popov
2022-05-10 11:22 ` Mark Rutland
2022-05-15 16:32 ` Alexander Popov
2022-04-27 17:31 ` [PATCH v2 07/13] stackleak: rework poison scanning Mark Rutland
2022-05-09 13:51 ` Alexander Popov
2022-05-10 13:13 ` Mark Rutland
2022-05-15 17:33 ` Alexander Popov
2022-05-24 13:31 ` Mark Rutland
2022-05-26 23:25 ` Alexander Popov
2022-05-31 18:13 ` Kees Cook
2022-06-03 16:55 ` Alexander Popov
2022-04-27 17:31 ` [PATCH v2 08/13] lkdtm/stackleak: avoid spurious failure Mark Rutland
2022-04-27 17:31 ` [PATCH v2 09/13] lkdtm/stackleak: rework boundary management Mark Rutland
2022-05-04 19:07 ` Kees Cook
2022-04-27 17:31 ` [PATCH v2 10/13] lkdtm/stackleak: prevent unexpected stack usage Mark Rutland
2022-04-27 17:31 ` [PATCH v2 11/13] lkdtm/stackleak: check stack boundaries Mark Rutland
2022-04-27 17:31 ` [PATCH v2 12/13] stackleak: add on/off stack variants Mark Rutland
2022-04-27 17:31 ` [PATCH v2 13/13] arm64: entry: use stackleak_erase_on_task_stack() Mark Rutland
2022-05-04 16:42 ` Catalin Marinas [this message]
2022-05-04 19:16 ` [PATCH v2 00/13] stackleak: fixes and rework Kees Cook
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=YnKs2E2t+coe2h3w@arm.com \
--to=catalin.marinas@arm.com \
--cc=akpm@linux-foundation.org \
--cc=alex.popov@linux.com \
--cc=keescook@chromium.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mark.rutland@arm.com \
--cc=will@kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).