#include <linux/compiler.h>
#include <linux/string.h>
#include <linux/thread_info.h>
+#include <linux/kernel.h>
#include <asm/asi.h>
#include <asm/spitfire.h>
#include <asm-generic/uaccess-unaligned.h>
static inline unsigned long __must_check
copy_from_user(void *to, const void __user *from, unsigned long size)
{
- unsigned long ret = ___copy_from_user(to, from, size);
+ unsigned long ret;
+ if ((long)size < 0 || size > INT_MAX)
+ return size;
+
+ if (!__builtin_constant_p(size))
+ check_object_size(to, size, false);
+
+ ret = ___copy_from_user(to, from, size);
if (unlikely(ret))
ret = copy_from_user_fixup(to, from, size);
static inline unsigned long __must_check
copy_to_user(void __user *to, const void *from, unsigned long size)
{
- unsigned long ret = ___copy_to_user(to, from, size);
+ unsigned long ret;
+
+ if ((long)size < 0 || size > INT_MAX)
+ return size;
+
+ if (!__builtin_constant_p(size))
+ check_object_size(from, size, true);
+ ret = ___copy_to_user(to, from, size);
if (unlikely(ret))
ret = copy_to_user_fixup(to, from, size);
return ret;