On Thu, 2006-06-29 at 11:03 +0200, Jan Beulich wrote:
> I'm not having a problem removing the messages if the current state can be obtained
> elsewhere.
>
> Looking at the patch I see at least one problem (in more than one place) - before
> accessing data, you should check that the relevant piece to be read is entirely within
> range. You should not (as done at least once) rely on copy_from_user() failing - the
> data may be readable, but out of bounds wrt. the information in the headers (or the
> header sizes themselves).
Can you please give me more details? I had a lot of checks there if the
size is incorrect.
Thanks,
Shaohua
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