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-rw-r--r--net/mac80211/mesh_hwmp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index eeb0ce2..59fd7fe 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -581,6 +581,10 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
size_t baselen;
u32 last_hop_metric;
+ /* need action_code */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ return;
+
baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
len - baselen, &elems);