svn commit: r342211 - head/sys/net80211

[Andriy Voskoboinyk]

Author: avos
Date: Wed Dec 19 03:08:10 2018
New Revision: 342211
URL: https://svnweb.freebsd.org/changeset/base/342211

Log:
  net80211: fix out-of-bounds read in ieee80211_amrr(9).
  
  ieee80211_alloc_node() does not initialize rateset tables; that's not
  expected by rate control modules and will result in array access at
  index -1 - where ni_essid[] array is located (zeroed at allocation, so
  there are no user-visible consequences).
  
  Just delay rate control initialization to the moment, when rateset
  tables are initiaziled; nothing will use rates here anyway.
  
  MFC after:	4 days

Modified:
  head/sys/net80211/ieee80211_node.c

Modified: head/sys/net80211/ieee80211_node.c
==============================================================================
--- head/sys/net80211/ieee80211_node.c	Wed Dec 19 02:34:31 2018	(r342210)
+++ head/sys/net80211/ieee80211_node.c	Wed Dec 19 03:08:10 2018	(r342211)
@@ -1417,8 +1417,6 @@ ieee80211_alloc_node(struct ieee80211_node_table *nt,
 	IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
 	    "%s: inact_reload %u", __func__, ni->ni_inact_reload);
 
-	ieee80211_ratectl_node_init(ni);
-
 	return ni;
 }