mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-09 11:04:04 +02:00
44 lines
1.8 KiB
Diff
44 lines
1.8 KiB
Diff
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WDS related crash is observed. This causes by possible random memory
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writes/accesss. Note how wds is freed, yet it will be used further in
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loop ...
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Other usages in the tree of LIST_FOREACH() when element is found and
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acted up on element, loop is immediately break (either via break, or
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return). But not in this case ...
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Signed-off-by: Mindaugas Kriaučiūnas <mindaugas.kriauciunas@gmail.com>
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Signed-off-by: Žilvinas Valinskas <valins@soften.ktu.lt>
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Index: madwifi-ng-trunk/net80211/ieee80211_node.c
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===================================================================
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--- madwifi-ng-trunk.orig/net80211/ieee80211_node.c 2006-09-25 13:28:08.000000000 +0300
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+++ madwifi-ng-trunk/net80211/ieee80211_node.c 2006-10-18 15:59:40.000000000 +0300
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@@ -961,11 +961,11 @@
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ieee80211_del_wds_node(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
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{
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int hash;
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- struct ieee80211_wds_addr *wds;
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+ struct ieee80211_wds_addr *wds, *next;
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IEEE80211_NODE_LOCK_IRQ(nt);
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for (hash = 0; hash < IEEE80211_NODE_HASHSIZE; hash++) {
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- LIST_FOREACH(wds, &nt->nt_wds_hash[hash], wds_hash) {
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+ LIST_FOREACH_SAFE(wds, &nt->nt_wds_hash[hash], wds_hash, next) {
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if (wds->wds_ni == ni) {
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if (ieee80211_node_dectestref(ni)) {
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_ieee80211_free_node(ni);
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@@ -984,11 +984,11 @@
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{
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struct ieee80211_node_table *nt = (struct ieee80211_node_table *)data;
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int hash;
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- struct ieee80211_wds_addr *wds;
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+ struct ieee80211_wds_addr *wds, *next;
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IEEE80211_NODE_LOCK_IRQ(nt);
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for (hash = 0; hash < IEEE80211_NODE_HASHSIZE; hash++) {
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- LIST_FOREACH(wds, &nt->nt_wds_hash[hash], wds_hash) {
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+ LIST_FOREACH_SAFE(wds, &nt->nt_wds_hash[hash], wds_hash, next) {
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if (wds->wds_agingcount != WDS_AGING_STATIC) {
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if (!wds->wds_agingcount) {
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if (ieee80211_node_dectestref(wds->wds_ni)) {
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