lkml.org 
[lkml]   [2023]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] kobject: Fix global-out-of-bounds in kobject_action_type()
A: http://en.wikipedia.org/wiki/Top_post
Q: Were do I find info about this thing called top-posting?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?

A: No.
Q: Should I include quotations after my reply?

http://daringfireball.net/2007/07/on_top

On Tue, Mar 07, 2023 at 05:08:02PM +0800, Xia Fukun wrote:
> Thanks for your reply.
> Your understanding is correct."offline\0\0\0\0\0\0\0\0\0\0" is indeed blocked
> from matching "offline" and returns a failed result.
>
> I'm not sure whether to relax the restrictions to make it match successfully.
> After all, the incoming count is too large and not the actual length of
> "offline".

But that doesn't matter at all. Sometimes you do not have control over
the buffer length when writing to a file like this, what matters is the
content of the buffer and we should stop at the first \0 as that's the
"end of a string" in this type of api.

So your change here might break existing userspace code, and we can't do
that, sorry.

thanks,

greg k-h

\
 
 \ /
  Last update: 2023-03-27 00:46    [W:0.078 / U:0.496 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site