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Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index a7e71eef3660..28624e57aa49 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1635,6 +1635,9 @@ static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
if (!mesh_matches_local(sdata, elems))
goto free;
+ if (!elems->mesh_chansw_params_ie)
+ goto free;
+
ifmsh->chsw_ttl = elems->mesh_chansw_params_ie->mesh_ttl;
if (!--ifmsh->chsw_ttl)
fwd_csa = false;