[PATCH] m32r: security fix of {get,put}_user macros
Update {get,put}_user macros for m32r kernel.
- Modify get_user to use __get_user_asm macro, instead of __get_user_x macro.
- Remove arch/m32r/lib/{get,put}user.S.
- Some cosmetic updates.
I would like to thank NIIBE Yutaka for his reporting about the m32r kernel's
security problem in {get,put}_user macros.
There were no address checking for user space access in {get,put}_user macros.
;-)
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: NIIBE Yutaka <gniibe@fsij.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/m32r/lib/Makefile b/arch/m32r/lib/Makefile
index e632d10..d16b4e4 100644
--- a/arch/m32r/lib/Makefile
+++ b/arch/m32r/lib/Makefile
@@ -2,6 +2,6 @@
# Makefile for M32R-specific library files..
#
-lib-y := checksum.o ashxdi3.o memset.o memcpy.o getuser.o \
- putuser.o delay.o strlen.o usercopy.o csum_partial_copy.o
+lib-y := checksum.o ashxdi3.o memset.o memcpy.o \
+ delay.o strlen.o usercopy.o csum_partial_copy.o