Hello! > What bug triggered that helped you discover this? Or is it > merely from a code audit?
I asked the same question. :-) openvz added some another fields to skbuff and when it was found that they are lost while clone, he tried to figure out how all this works and looked for another examples of this kind. As I understand, the problem can be seen only in xfrmX_tunnel_input. If uninitialized mac_len obtained from slab is more than current head room it could corrupt memory. Also, it looks like the fix is incomplete. copy_skb_header() also does not copy this field. But it will be initialized to 0 by alloc_skb in this case and xfrmX_tunnel_input() just will not copy mac header. Alexey - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
