lkml.org 
[lkml]   [2021]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2] intersil: Use struct_group() for memcpy() region
From
Date
Kees Cook <keescook@chromium.org> wrote:

> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memcpy(), memmove(), and memset(), avoid
> intentionally writing across neighboring fields.
>
> Use struct_group() in struct hfa384x_tx_frame around members
> frame_control, duration_id, addr1, addr2, addr3, and seq_ctrl, so they
> can be referenced together. This will allow memcpy() and sizeof() to
> more easily reason about sizes, improve readability, and avoid future
> warnings about writing beyond the end of frame_control.
>
> "pahole" shows no size nor member offset changes to struct
> hfa384x_tx_frame. "objdump -d" shows no object code changes.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>

Patch applied to wireless-drivers-next.git, thanks.

601d2293e27f intersil: Use struct_group() for memcpy() region

--
https://patchwork.kernel.org/project/linux-wireless/patch/20211119004646.2347920-1-keescook@chromium.org/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

\
 
 \ /
  Last update: 2021-11-29 11:47    [W:0.032 / U:0.996 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site