[PATCH] ima: add check for khdr->buffer_size

[Mimi Zohar]

Hi Lucas,

On Thu, 2022-12-15 at 23:12 +0800, iuppiterlucas at gmail.com wrote:
> When khdr->buffer_size > size, continuing to use ima_parse_buf
> 
> may cause memory access out of bounds.
> 
> 
> Fixes: 94c3aac567a9 ("ima: on soft reboot, restore the measurement list")
> 
> 
> Signed-off-by: Lucas Iuppiter <iuppiterlucas at gmail.com>

When posting patches to the linux-integrity mailing list, patches
should be posted in plain text, not mime encoded.

thanks,

Mimi