lkml.org 
[lkml]   [2015]   [Aug]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH V2 1/3] kvm: use kmalloc() instead of kzalloc() during iodev register/unregister


On 08/25/2015 11:29 PM, Joe Perches wrote:
> On Tue, 2015-08-25 at 15:47 +0800, Jason Wang wrote:
>> > All fields of kvm_io_range were initialized or copied explicitly
>> > afterwards. So switch to use kmalloc().
> Is there any compiler added alignment padding
> in either structure? If so, those padding
> areas would now be uninitialized and may leak
> kernel data if copied to user-space.
>

I get your concern, but I don't a way to copy them to userspace, did you?


\
 
 \ /
  Last update: 2015-08-26 08:01    [W:0.128 / U:1.864 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site