From: Andrey Konovalov <andreyknvl@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Marco Elver <elver@google.com>,
kasan-dev@googlegroups.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Walter Wu <walter-zh.wu@mediatek.com>,
Elena Petrova <lenaptr@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH 3/4] kasan: allow enabling stack tagging for tag-based mode
Date: Fri, 31 Jul 2020 15:20:40 +0200 [thread overview]
Message-ID: <e7febb907b539c3730780df587ce0b38dc558c3d.1596199677.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1596199677.git.andreyknvl@google.com>
Use CONFIG_KASAN_STACK to enable stack tagging.
Note, that HWASAN short granules [1] are disabled. Supporting those will
require more kernel changes.
[1] https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
scripts/Makefile.kasan | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 03757cc60e06..f4beee1b0013 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -44,7 +44,8 @@ else
endif
CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
- -mllvm -hwasan-instrument-stack=0 \
+ -mllvm -hwasan-instrument-stack=$(CONFIG_KASAN_STACK) \
+ -mllvm -hwasan-use-short-granules=0 \
$(instrumentation_flags)
endif # CONFIG_KASAN_SW_TAGS
--
2.28.0.163.g6104cc2f0b6-goog
next prev parent reply other threads:[~2020-07-31 13:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-31 13:20 [PATCH 0/4] kasan: support stack instrumentation for tag-based mode Andrey Konovalov
2020-07-31 13:20 ` Andrey Konovalov
2020-07-31 13:20 ` [PATCH 1/4] kasan: don't tag stacks allocated with pagealloc Andrey Konovalov
2020-07-31 13:20 ` Andrey Konovalov
2020-07-31 13:20 ` [PATCH 2/4] kasan, arm64: don't instrument functions that enable kasan Andrey Konovalov
2020-07-31 13:20 ` Andrey Konovalov
2020-07-31 14:21 ` Catalin Marinas
2020-07-31 13:20 ` Andrey Konovalov [this message]
2020-07-31 13:20 ` [PATCH 3/4] kasan: allow enabling stack tagging for tag-based mode Andrey Konovalov
2020-07-31 13:20 ` [PATCH 4/4] kasan: adjust kasan_stack_oob " Andrey Konovalov
2020-07-31 13:20 ` Andrey Konovalov
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=e7febb907b539c3730780df587ce0b38dc558c3d.1596199677.git.andreyknvl@google.com \
--to=andreyknvl@google.com \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=catalin.marinas@arm.com \
--cc=dvyukov@google.com \
--cc=elver@google.com \
--cc=glider@google.com \
--cc=kasan-dev@googlegroups.com \
--cc=lenaptr@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=vincenzo.frascino@arm.com \
--cc=walter-zh.wu@mediatek.com \
/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.