From: Kees Cook <keescook@chromium.org>
To: "David S. Miller" <davem@davemloft.net>
Cc: Kees Cook <keescook@chromium.org>,
Andreas Larsson <andreas@gaisler.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Sam Ravnborg <sam@ravnborg.org>, Helge Deller <deller@gmx.de>,
Guo Ren <guoren@kernel.org>,
sparclinux@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
"Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: [PATCH] sparc: vdso: Disable UBSAN instrumentation
Date: Fri, 23 Feb 2024 08:59:45 -0800 [thread overview]
Message-ID: <20240223165942.work.950-kees@kernel.org> (raw)
The UBSAN instrumentation cannot work in the vDSO since it is executing
in userspace, so disable it in the Makefile. Fixes the build failures
such as:
arch/sparc/vdso/vclock_gettime.c:217: undefined reference to `__ubsan_handle_shift_out_of_bounds'
Signed-off-by: Kees Cook <keescook@chromium.org>
---
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Guo Ren <guoren@kernel.org>
Cc: sparclinux@vger.kernel.org
---
arch/sparc/vdso/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index 7f5eedf1f5e0..e8aef2c8ae99 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -2,6 +2,7 @@
#
# Building vDSO images for sparc.
#
+UBSAN_SANITIZE := n
# files to link into the vdso
vobjs-y := vdso-note.o vclock_gettime.o
--
2.34.1
next reply other threads:[~2024-02-23 16:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 16:59 Kees Cook [this message]
2024-02-23 18:26 ` [PATCH] sparc: vdso: Disable UBSAN instrumentation Sam Ravnborg
2024-02-23 23:32 ` Kees Cook
2024-02-24 7:36 ` Sam Ravnborg
2024-02-29 20:00 ` Andy Shevchenko
2024-02-29 21:32 ` Kees Cook
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