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From: Jann Horn <jannh@google.com>
To: Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, jannh@google.com
Cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: [PATCH] x86/vdso: Enable sanitizers for vma.o
Date: Mon,  6 Jan 2020 21:02:04 +0100	[thread overview]
Message-ID: <20200106200204.94782-1-jannh@google.com> (raw)

The vDSO makefile opts out of all sanitizers (and objtool validation);
however, vma.o is a normal kernel object file (and already has objtool
validation selectively enabled), so turn the sanitizers back on for that
file.

Signed-off-by: Jann Horn <jannh@google.com>
---

Notes:
    This should probably go on top of the locking/kcsan branch?

 arch/x86/entry/vdso/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 0f46273b4556..50a1c9008864 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -30,6 +30,9 @@ vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
 
 # files to link into kernel
 obj-y				+= vma.o
+KASAN_SANITIZE_vma.o		:= y
+UBSAN_SANITIZE_vma.o		:= y
+KCSAN_SANITIZE_vma.o		:= y
 OBJECT_FILES_NON_STANDARD_vma.o	:= n
 
 # vDSO images to build
-- 
2.24.1.735.g03f4e72817-goog


             reply	other threads:[~2020-01-06 20:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-06 20:02 Jann Horn [this message]
2020-01-10 15:49 ` [tip: locking/kcsan] " tip-bot2 for Jann Horn

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