Re: [PATCH 1/1] initramfs: strcpy destination string overflow

From: H. Peter Anvin
Date: Tue Oct 05 2010 - 14:11:04 EST


On 10/05/2010 09:51 AM, Al Viro wrote:
>
> Take a look at struct hash definition. That sizeof is PATH_MAX and
> do_header() will reject an entry with name longer than that. IOW,
> the whole thing is a non-issue; we can add
> if (strlen(name) >= PATH_MAX)
> BUG();
> if we really care, but that's it.
>
> As a side note, it looks like we need a fat warning about blind "improvements"
> of that kind in CodingStyle; cargo-cult replacements like that can easily
> hide real bugs... ;-/

BUG_ON(strlen(name) >= PATH_MAX);

... would work for me.

OK, not an issue...

-hpa
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