From: Shawn Bohrer <[email protected]> Date: Wed, 3 Jun 2015 16:27:38 -0500
> From: Shawn Bohrer <[email protected]> > > 421b3885bf6d56391297844f43fb7154a6396e12 "udp: ipv4: Add udp early > demux" introduced a regression that allowed sockets bound to INADDR_ANY > to receive packets from multicast groups that the socket had not joined. > For example a socket that had joined 224.168.2.9 could also receive > packets from 225.168.2.9 despite not having joined that group if > ip_early_demux is enabled. > > Fix this by calling ip_check_mc_rcu() in udp_v4_early_demux() to verify > that the multicast packet is indeed ours. > > Signed-off-by: Shawn Bohrer <[email protected]> > Reported-by: Yurij M. Plotnikov <[email protected]> Applied and queued up for -stable, thanks. -- 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
