Johannes Berg 68d6ac6d27 netlink: fix compat recvmsg ... Since commit 1dacc76d00 Author: Johannes Berg <johannes@sipsolutions.net> Date: Wed Jul 1 11:26:02 2009 +0000 net/compat/wext: send different messages to compat tasks we had a race condition when setting and then restoring frag_list. Eric attempted to fix it, but the fix created even worse problems. However, the original motivation I had when I added the code that turned out to be racy is no longer clear to me, since we only copy up to skb->len to userspace, which doesn't include the frag_list length. As a result, not doing any frag_list clearing and restoring avoids the race condition, while not introducing any other problems. Additionally, while preparing this patch I found that since none of the remaining netlink code is really aware of the frag_list, we need to use the original skb's information for packet information and credentials. This fixes, for example, the group information received by compat tasks. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: stable@kernel.org [2.6.31+, for 2.6.35 revert 1235f504aa] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2010-08-18 23:35:58 -07:00
..
af_netlink.c	netlink: fix compat recvmsg	2010-08-18 23:35:58 -07:00
genetlink.c	genetlink: use genl_register_family_with_ops()	2010-07-26 21:00:10 -07:00
Makefile	netlink: Move netlink attribute parsing support to lib	2009-03-04 14:53:30 +08:00