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Revert "fix minor infoleak in get_user_ex()"

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This reverts commit 9d25c78ec0 which is
1c109fabbd51863475cd12ac206bdd249aee35af upstream

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2016-10-31 10:14:06 -06:00
parent bb730cc301
commit aef682ff5a
1 changed files with 1 additions and 5 deletions
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6
arch/x86/include/asm/uaccess.h
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@ -394,11 +394,7 @@ do { \
#define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
asm volatile("1: mov"itype" %1,%"rtype"0\n" \ asm volatile("1: mov"itype" %1,%"rtype"0\n" \
"2:\n" \ "2:\n" \
".section .fixup,\"ax\"\n" \ _ASM_EXTABLE_EX(1b, 2b) \
"3:xor"itype" %"rtype"0,%"rtype"0\n" \
" jmp 2b\n" \
".previous\n" \
_ASM_EXTABLE_EX(1b, 3b) \
: ltype(x) : "m" (__m(addr))) : ltype(x) : "m" (__m(addr)))
#define __put_user_nocheck(x, ptr, size) \ #define __put_user_nocheck(x, ptr, size) \