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Message-ID: <3633bff2-d07d-e135-a583-6fada6bf7671@yahoo.com>
Date: Tue, 15 Jan 2019 13:58:40 -0500
From: Ruslan Nikolaev <nruslan_devel@...oo.com>
To: kernel-hardening@...ts.openwall.com
Cc: thgarnie@...gle.com, x86@...nel.org, kstewart@...uxfoundation.org,
gregkh@...uxfoundation.org, keescook@...omium.org
Subject: [PATCH v1 02/06]: Avoid using the same object file in the kernel and
modules
Avoid using the same object file in the kernel and modules
The patch is by Hassan Nadeem and Ruslan Nikolaev. This extends
the prior PIE kernel patch (by Thomas Garnier) to also support
position-independent modules that can be placed anywhere in the
48/64-bit address space (for better KASLR).
Signed-off-by: Ruslan Nikolaev <nruslan_devel@...oo.com>
---
Makefile | 2 +-
entropy_common_dec.c | 2 ++
fse_decompress_dec.c | 2 ++
zstd_common_dec.c | 2 ++
4 files changed, 7 insertions(+), 1 deletion(-)
diff -uprN a/lib/zstd/entropy_common_dec.c b/lib/zstd/entropy_common_dec.c
--- a/lib/zstd/entropy_common_dec.c 1969-12-31 19:00:00.000000000 -0500
+++ b/lib/zstd/entropy_common_dec.c 2019-01-15 11:22:25.688186400 -0500
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
+#include "entropy_common.c"
diff -uprN a/lib/zstd/fse_decompress_dec.c b/lib/zstd/fse_decompress_dec.c
--- a/lib/zstd/fse_decompress_dec.c 1969-12-31 19:00:00.000000000 -0500
+++ b/lib/zstd/fse_decompress_dec.c 2019-01-15 11:22:25.688186400 -0500
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
+#include "fse_decompress.c"
diff -uprN a/lib/zstd/Makefile b/lib/zstd/Makefile
--- a/lib/zstd/Makefile 2019-01-15 11:20:44.987165514 -0500
+++ b/lib/zstd/Makefile 2019-01-15 11:22:25.688186400 -0500
@@ -6,4 +6,4 @@ ccflags-y += -O3
zstd_compress-y := fse_compress.o huf_compress.o compress.o \
entropy_common.o fse_decompress.o zstd_common.o
zstd_decompress-y := huf_decompress.o decompress.o \
- entropy_common.o fse_decompress.o zstd_common.o
+ entropy_common_dec.o fse_decompress_dec.o zstd_common_dec.o
diff -uprN a/lib/zstd/zstd_common_dec.c b/lib/zstd/zstd_common_dec.c
--- a/lib/zstd/zstd_common_dec.c 1969-12-31 19:00:00.000000000 -0500
+++ b/lib/zstd/zstd_common_dec.c 2019-01-15 11:22:25.688186400 -0500
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+#include "zstd_common.c"
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