On Wed, 2017-04-19 at 17:58 +0200, Pablo Neira Ayuso wrote: > On Wed, Apr 19, 2017 at 09:23:42AM +0800, gfree.wind@xxxxxxxxxxx wrote: > > From: Gao Feng <fgao@xxxxxxxxxx> > > > > The window scale may be enlarged from 14 to 15 according to the itef > > draft https://tools.ietf.org/html/draft-nishida-tcpm-maxwin-03. > > > > Use the macro TCP_MAX_WSCALE to support it easily with TCP stack in > > the future. > > Applied, thanks. Note that linux kernel is not ready yet for a TCP_MAX_WSCALE being changed to 15. Signed 32bit sk counters can already be abused with 1GB TCP windows, for malicious peers sending SACK forcing linux to increase its memory usage above 2GB and overflows are pretty bad. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
