Re: [PATCH] mm: kmemleak: take a full lowmem check in kmemleak_*_phys()

From: Andrew Morton
Date: Wed Apr 13 2022 - 15:28:46 EST


On Wed, 13 Apr 2022 20:29:25 +0800 Patrick Wang <patrick.wang.shcn@xxxxxxxxx> wrote:

> The kmemleak_*_phys() apis do not check the address for lowmem's min
> boundary, while the caller may pass an address below lowmem, which
> will trigger an oops:

Do you believe this fix should be backported into -stable kernels?