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madwifi: add some extra sanity checking

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12006 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2008-07-30 07:05:12 +00:00
parent ef0bb0a891
commit d992c163f7
2 changed files with 13 additions and 1 deletions
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12
package/madwifi/patches/373-sanity_check.patch Normal file
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@@ -0,0 +1,12 @@
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -238,6 +238,9 @@
if (vap->iv_opmode == IEEE80211_M_MONITOR)
goto out;
+ if (!skb->data)
+ goto out;
+
if (skb->len < sizeof(struct ieee80211_frame_min)) {
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
ni->ni_macaddr, NULL,