On Tue, 2019-10-08 at 07:42 -0400, Qian Cai wrote: > > > On Oct 8, 2019, at 7:02 AM, Walter Wu <walter-zh...@mediatek.com> wrote: > > > > I don't know very well in UBSAN, but I try to build ubsan kernel and > > test a negative number in memset and kmalloc_memmove_invalid_size(), it > > look like no check. > > It sounds like more important to figure out why the UBSAN is not working in > this case rather than duplicating functionality elsewhere.
Maybe we can let the maintainer and reviewer decide it :) And We want to say if size is negative numbers, it look like an out-of-bounds, too. so KASAN make sense to detect it.
