From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
Sam Ravnborg <sam@ravnborg.org>, Sasha Levin <sashal@kernel.org>,
davem@davemloft.net, andreas@gaisler.com, masahiroy@kernel.org,
rmk+kernel@armlinux.org.uk, deller@gmx.de,
catalin.marinas@arm.com, sparclinux@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 06/11] sparc: vdso: Disable UBSAN instrumentation
Date: Fri, 29 Mar 2024 08:35:12 -0400 [thread overview]
Message-ID: <20240329123522.3086878-6-sashal@kernel.org> (raw)
In-Reply-To: <20240329123522.3086878-1-sashal@kernel.org>
From: Kees Cook <keescook@chromium.org>
[ Upstream commit d4be85d068b4418c341f79b654399f7f0891069a ]
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'
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/all/20240224073617.GA2959352@ravnborg.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@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 dc85570d88395..4fa1cb1a67fca 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -1,6 +1,7 @@
#
# Building vDSO images for sparc.
#
+UBSAN_SANITIZE := n
KBUILD_CFLAGS += $(DISABLE_LTO)
--
2.43.0
parent reply other threads:[~2024-03-29 12:35 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20240329123522.3086878-1-sashal@kernel.org>]
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