From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
patches@lists.linux.dev, kernel test robot <lkp@intel.com>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Nathan Chancellor <nathan@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Fangrui Song <maskray@google.com>,
loongarch@lists.linux.dev, Kees Cook <keescook@chromium.org>,
Huacai Chen <chenhuacai@loongson.cn>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.7 117/334] LoongArch: vDSO: Disable UBSAN instrumentation
Date: Tue, 27 Feb 2024 14:19:35 +0100 [thread overview]
Message-ID: <20240227131634.246209554@linuxfoundation.org> (raw)
In-Reply-To: <20240227131630.636392135@linuxfoundation.org>
6.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kees Cook <keescook@chromium.org>
[ Upstream commit cca5efe77a6a2d02b3da4960f799fa233e460ab1 ]
The vDSO executes in userspace, so the kernel's UBSAN should not
instrument it. Solves these kind of build errors:
loongarch64-linux-ld: arch/loongarch/vdso/vgettimeofday.o: in function `vdso_shift_ns':
lib/vdso/gettimeofday.c:23:(.text+0x3f8): undefined reference to `__ubsan_handle_shift_out_of_bounds'
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401310530.lZHCj1Zl-lkp@intel.com/
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Fangrui Song <maskray@google.com>
Cc: loongarch@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/loongarch/vdso/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile
index c74c9921304f2..f597cd08a96be 100644
--- a/arch/loongarch/vdso/Makefile
+++ b/arch/loongarch/vdso/Makefile
@@ -2,6 +2,7 @@
# Objects to go into the VDSO.
KASAN_SANITIZE := n
+UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
# Include the generic Makefile to check the built vdso.
--
2.43.0
parent reply other threads:[~2024-02-27 13:35 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20240227131630.636392135@linuxfoundation.org>]
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