Re: [PATCH] strscpy: zero any trailing garbage bytes in the destination

From: Ingo Molnar
Date: Wed Oct 07 2015 - 03:29:00 EST



* Chris Metcalf <cmetcalf@xxxxxxxxxx> wrote:

> It's possible that the destination can be shadowed in userspace
> (as, for example, the perf buffers are now). So we should take
> care not to leak data that could be inspected by userspace.
>
> Signed-off-by: Chris Metcalf <cmetcalf@xxxxxxxxxx>
> ---
> Ingo, can you test this change in your Fedora+strlcpy boot test?
> I think it's correct but the more testing the better, particularly
> if we're about to add the support for strlcpy to use it.

Yeah, booted it on a couple of systems and everything seems to be fine:

Tested-by: Ingo Molnar <mingo@xxxxxxxxxx>

Thanks,

Ingo
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