From: Changbin Du <changbin.du@gmail.com>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
hpa@zytor.com, x86@kernel.org, Andy Lutomirski <luto@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kbuild@vger.kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH 0/2] Add SANITIZE_xx.o & SANITIZE and apply them to x86
Date: Sat, 1 Feb 2020 14:24:57 +0800 [thread overview]
Message-ID: <20200201062459.7150-1-changbin.du@gmail.com> (raw)
These two patches add SANITIZE_xx.o and SANITIZE to disable all sanitizers for
specific files, and apply them to x86 booting code.
We need to disable UBSAN for some of ealy stage code:
o For code which could operate in one-one mapping mode. In this case,
kernel would crash at accessing data parameter when invoking UBSAN
handlers.
o Since UBSAN handlers are instrumented by KASAN, so invoking UBSAN
handlers before KASAN is initiated also is not allowed.
Changbin Du (2):
sanitize: Add SANITIZE_xx.o and SANITIZE to disable all sanitizers for
specific files
x86: Disable both KASAN and UBSAN for some booting code
Documentation/dev-tools/kasan.rst | 12 ++++++++++++
arch/x86/boot/Makefile | 2 +-
arch/x86/boot/compressed/Makefile | 2 +-
arch/x86/entry/vdso/Makefile | 3 +--
arch/x86/kernel/Makefile | 10 +++++-----
arch/x86/lib/Makefile | 2 +-
arch/x86/mm/Makefile | 4 ++--
arch/x86/realmode/Makefile | 2 +-
arch/x86/realmode/rm/Makefile | 2 +-
scripts/Makefile.lib | 4 ++--
10 files changed, 27 insertions(+), 16 deletions(-)
--
2.24.0
next reply other threads:[~2020-02-01 6:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-01 6:24 Changbin Du [this message]
2020-02-01 6:24 ` [PATCH 1/2] sanitize: Add SANITIZE_xx.o and SANITIZE to disable all sanitizers for specific files Changbin Du
2020-02-16 4:46 ` Masahiro Yamada
2020-02-01 6:24 ` [PATCH 2/2] x86: Disable both KASAN and UBSAN for some booting code Changbin Du
2020-02-12 12:28 ` [PATCH 0/2] Add SANITIZE_xx.o & SANITIZE and apply them to x86 Changbin Du
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