On Wed, Sep 04, 2013 at 03:33:00PM -0400, Waiman Long wrote: > I have thought about that. But if a d_move() is going on, the string > in the buffer will be discarded as the sequence number will change. > So whether or not it have embedded null byte shouldn't matter. That > is why I didn't add code to do byte-by-byte copy at this first > patch. I can add code to do that if you think it is safer to do so.
Sigh... Junk in the output is not an issue; reading from invalid address is, since you might not survive to the sequence number check. Again, if p is an address returned by kmalloc(size, ...), dereferencing p + offset is not safe unless offset is less than size. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
