On Mon, 2019-10-14 at 08:07 -0700, Matthew Wilcox wrote: > On Mon, Oct 14, 2019 at 06:36:54PM +0800, Walter Wu wrote: > > Test size is negative numbers in memmove in order to verify > > whether it correctly get KASAN report. > > You're not testing negative numbers, though. memmove() takes an unsigned > type, so you're testing a very large number. > Casting negative numbers to size_t would indeed turn up as a "large" size_t and its value will be larger than ULONG_MAX/2. We mainly want to express this case. Maybe we can add some descriptions. Thanks for your reminder.
