fix monitor mode related crash in madwifi (#2034)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7957 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/madwifi/patches/126-rxerr_frames.patch b/package/madwifi/patches/126-rxerr_frames.patch
new file mode 100644 (file)
index 0000000..c65efae
--- /dev/null
+++ b/package/madwifi/patches/126-rxerr_frames.patch
@@ -0,0 +1,15 @@
+Index: madwifi-ng-r2568-20070710/ath/if_ath.c
+===================================================================
+--- madwifi-ng-r2568-20070710.orig/ath/if_ath.c        2007-07-13 09:14:14.721154018 +0200
++++ madwifi-ng-r2568-20070710/ath/if_ath.c     2007-07-13 09:14:55.499477843 +0200
+@@ -5711,8 +5711,9 @@
+                       /*
+                        * Reject error frames if we have no vaps that 
+                        * are operating in monitor mode.
++                       * Reject empty frames as well
+                        */
+-                      if (sc->sc_nmonvaps == 0)
++                      if ((sc->sc_nmonvaps == 0) || (rs->rs_datalen == 0))
+                               goto rx_next;
+               }
+ rx_accept: