diff --git a/mm/usercopy.c b/mm/usercopy.c index 816feccebeb0..f5c4c3a6f2df 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -125,7 +125,7 @@ static inline const char *check_kernel_text_object(const void *ptr, static inline const char *check_bogus_address(const void *ptr, unsigned long n) { /* Reject if object wraps past end of memory. */ - if (ptr + n < ptr) + if ((unsigned long)ptr + n < (unsigned long)ptr) return ""; /* Reject if NULL or ZERO-allocation. */