lkml.org 
[lkml]   [2020]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 2/3] mm/slub: Fix redzoning for small allocations
On Fri, 9 Oct 2020, Kees Cook wrote:

> Store the freelist pointer out of line when object_size is smaller than
> sizeof(void *) and redzoning is enabled.
>
> (Note that no caches with such a size are known to exist in the kernel
> currently.)

Ummm... The smallest allowable cache size is sizeof(void *) as I recall.


mm/slab_common.c::kmem_sanity_check() checks the sizes when caches are
created.

NAK.

\
 
 \ /
  Last update: 2020-10-12 10:02    [W:0.110 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site