The patch titled
Subject: powerpc: don't fortify prom_init
has been added to the -mm tree. Its filename is
powerpc-dont-fortify-prom_init.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/powerpc-dont-fortify-prom_init.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/powerpc-dont-fortify-prom_init.patch
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------------------------------------------------------
From: Daniel Axtens <dja@xxxxxxxxxx>
Subject: powerpc: don't fortify prom_init
prom_init is a bit special; in theory it should be able to be linked
separately to the kernel. To keep this from getting too complex, the
symbols that prom_init.c uses are checked.
Fortification adds symbols, and it gets quite messy as it includes things
like panic(). So just don't fortify prom_init.c for now.
Link: http://lkml.kernel.org/r/1497903987-21002-6-git-send-email-keescook@xxxxxxxxxxxx
Signed-off-by: Daniel Axtens <dja@xxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Daniel Micay <danielmicay@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/prom_init.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN arch/powerpc/kernel/prom_init.c~powerpc-dont-fortify-prom_init arch/powerpc/kernel/prom_init.c
--- a/arch/powerpc/kernel/prom_init.c~powerpc-dont-fortify-prom_init
+++ a/arch/powerpc/kernel/prom_init.c
@@ -15,6 +15,9 @@
#undef DEBUG_PROM
+/* we cannot use FORTIFY as it brings in new symbols */
+#define __NO_FORTIFY
+
#include <stdarg.h>
#include <linux/kernel.h>
#include <linux/string.h>
_
Patches currently in -mm which might be from dja@xxxxxxxxxx are
powerpc-dont-fortify-prom_init.patch
powerpc-make-feature-fixup-tests-fortify-safe.patch
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